File: nytprofhtml

package info (click to toggle)
libdevel-nytprof-perl 4.04-1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 2,124 kB
  • ctags: 1,330
  • sloc: perl: 4,392; ansic: 92; makefile: 19
file content (2009 lines) | stat: -rwxr-xr-x 75,159 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
#!/usr/bin/perl
##########################################################
## This script is part of the Devel::NYTProf distribution
##
## Copyright, contact and other information can be found
## at the bottom of this file, or by going to:
## http://search.cpan.org/~akaplan/Devel-NYTProf
##
##########################################################
# $Id: nytprofhtml 1329 2010-07-08 14:10:06Z tim.bunce@gmail.com $
###########################################################
use warnings;
use strict;

use Carp;
use Getopt::Long;
use List::Util qw(sum max);
use File::Copy;
use File::Path qw(rmtree);

# Handle --profself before loading Devel::NYTProf::Core
# (because it parses NYTPROF for options)
BEGIN {
    if (grep { $_ eq '--profself' } @ARGV) {
        # profile nytprofhtml itself
        our $profself = "nytprof-nytprofhtml.out";
        $ENV{NYTPROF} .= ":file=$profself:trace=1";
        require Devel::NYTProf;
        END { warn "Profile of $0 written to $profself\n" if our $profself; } 
    }
}

use Devel::NYTProf::Reader;
use Devel::NYTProf::Core;
use Devel::NYTProf::Util qw(
    fmt_float fmt_time fmt_incl_excl_time
    calculate_median_absolute_deviation
    get_abs_paths_alternation_regex
    html_safe_filename
);
use Devel::NYTProf::Constants qw(NYTP_SCi_CALLING_SUB);

my $json_any = eval { require JSON::Any; JSON::Any->import; JSON::Any->new }
    or warn "Can't load JSON::Any module - HTML visualizations skipped.\n";

our $VERSION = '4.04';

if ($VERSION != $Devel::NYTProf::Core::VERSION) {
    die "$0 version '$VERSION' doesn't match version '$Devel::NYTProf::Core::VERSION' of $INC{'Devel/NYTProf/Core.pm'}\n";
}

my @treemap_colors = (0,2,4,6,8,10,1,3,5,7,9);

# These control the limits for what the script will consider ok to severe times
# specified in standard deviations from the mean time
use constant SEVERITY_SEVERE => 2.0;    # above this deviation, a bottleneck
use constant SEVERITY_BAD    => 1.0;
use constant SEVERITY_GOOD   => 0.5;    # within this deviation, okay

use constant NUMERIC_PRECISION => 5;

my @on_ready_js;

GetOptions(
    'file|f=s'   => \(my $opt_file = 'nytprof.out'),
    'lib|l=s'   => \my $opt_lib,
    'out|o=s'   => \(my $opt_out = 'nytprof'),
    'delete|d!' => \my $opt_delete,
    'open!'     => \my $opt_open,
    'help|h'    => sub { exit usage() },
    'minimal|m!'=> \my $opt_minimal,
    'profself!'     => sub { }, # handled in BEGIN above
) or do { exit usage(); };


DB::set_option('blocks', 0) if $opt_minimal;

sub usage {
    print <<END;
usage: [perl] nytprofhtml [opts]
 --file <file>, -f <file>  Read profile data from the specified file [default: nytprof.out]
 --out <dir>,   -o <dir>   Write report files to this directory [default: nytprof]
 --delete,      -d         Delete any old report files in <dir> first
 --lib <lib>,   -l <lib>   Add <lib> to the beginning of \@INC
 --minimal,     -m         Don't generate graphviz .dot files or block/sub-level reports
 --help,        -h         Print this message

This script of part of the Devel::NYTProf distribution.
See http://search.cpan.org/dist/Devel-NYTProf/ for details and copyright.
END
    return 1;
}


# handle handle output location
if (!-e $opt_out) {
    # will be created
}
elsif (!-d $opt_out) {
    die "$0: Specified output directory '$opt_out' already exists as a file!\n";
}
elsif (!-w $opt_out) {
    die "$0: Unable to write to output directory '$opt_out'\n";
}
else {
    if (defined($opt_delete)) {
        print "Deleting existing $opt_out directory\n";
        rmtree($opt_out);
    }
}

# handle custom lib path
if (defined($opt_lib)) {
    warn "$0: Specified lib directory '$opt_lib' does not exist.\n"
        unless -d $opt_lib;
    require lib;
    lib->import($opt_lib);
}

my $reporter = new Devel::NYTProf::Reader($opt_file);

# place to store this
$reporter->output_dir($opt_out);

# set formatting for html
$reporter->set_param(
    'header',
    sub {
        my ($profile, $fi, $output_filestr, $level) = @_;

        my $profile_level_buttons = ($fi->is_eval)
            ? '' : get_level_buttons($profile->get_profile_levels, $output_filestr, $level);

        my $subhead = qq{&emsp;&emsp;$profile_level_buttons<br />
            For ${ \($profile->{attribute}{application}) }
        };

        my $html_header = get_html_header("Profile of ".$fi->filename_without_inc);
        my $page_header = get_page_header(
            profile  => $profile,
            title    => "NYTProf Performance Profile",
            subtitle => $subhead,
        );
        my $filename_escaped = _escape_html($fi->filename);
        my @intro_rows = (
            [ "Filename", $fi->is_file
                ? sprintf(q{<a href="file://%s">%s</a>}, $fi->filename, $filename_escaped)
                : $filename_escaped ],
            [ "Statements", sprintf "Executed %d statements in %s",
                $fi->sum_of_stmts_count, fmt_time($fi->sum_of_stmts_time) ],
        );
        if ($fi->is_eval) {
            push @intro_rows, [
                "Eval Invoked At", sprintf q{<a %s>%s line %d</a>},
                    $reporter->href_for_file($fi->eval_fi, $fi->eval_line),
                    _escape_html($fi->eval_fi->filename), $fi->eval_line
            ];

            my @sibling_html;
            for my $e_fi ($fi->sibling_evals) {
                if ($e_fi == $fi) {
                    push @sibling_html, 1+@sibling_html;
                }
                else {
                    push @sibling_html, sprintf qq{<a %s>%d</a>},
                        $reporter->href_for_file($e_fi),
                        1+@sibling_html;
                }
            }
            push @intro_rows, [ "Sibling evals",
                join ", ", @sibling_html
            ] if @sibling_html >= 2;
        }

        my $intro_table = join "\n", map {
            sprintf q{<tr><td class="h">%s</td><td align="left">%s</td></tr>}, @$_
        } @intro_rows;

        return join "\n", $html_header, $page_header,
            q{<div class="body_content"><br />},
            qq{<table class="file_summary">$intro_table</table>},
    }
);

$reporter->set_param(
    'taintmsg',
    qq{<br /><div class="warn_title">WARNING!</div>\n
<div class="warn">The source file used to generate this report was modified
after the profiler data was generated.
The data might be out of sync with the modified source code so you should regenerate it.
Meanwhile, the data on this page might not make much sense!</div>\n}
);

$reporter->set_param(
    'sawampersand',
    sub {
        my ($profile, $fi) = @_;
        my $line = $profile->{attribute}{sawampersand_line};
        return qq{<br /><div class="warn_title">NOTE!</div>\n
<div class="warn"><p>While profiling this file Perl noted the use of one or more special
variables that impact the performance of <i>all</i> regular expressions in the program.</p>

<p>Use of the "<tt>\$`</tt>", "<tt>\$&</tt>", and "<tt>\$'</tt>" variables should be replaced with faster alternatives.
See the WARNING at the end of the <a href="http://perldoc.perl.org/perlre.html#Capture-buffers">
Capture Buffers section of the perlre documentation</a>.</p>

<p>The use is detected by perl at compile time but by NYTProf during execution.
NYTProf first noted it when executing <a href="#$line">line $line</a>.
That was probably the first statement executed by the program after perl
compiled the code containing the variables.
If the variables can't be found by studying the source code, try using the
<a href="http://search.cpan.org/perldoc?Devel::FindAmpersand">Devel::FindAmpersand</a>
module.</p>

</div>\n}
    }
);

$reporter->set_param(
    'merged_fids',
    sub {
        my ($profile, $fi) = @_;

        my $merged_fids = $fi->meta->{merged_fids};
        my $evals_shown = 1 + scalar @$merged_fids;

        my @siblings = $fi->sibling_evals;
        my $merged_siblings = sum(map { scalar @{$_->meta->{merged_fids}||[]} } @siblings);
        my $evals_total = @siblings + $merged_siblings;

        my @msg;
        push @msg, sprintf qq{
            The data used to generate this report page was merged from %s<br />
            of the string eval on line %d of %s.
        },  ($evals_shown == $evals_total)
                ? sprintf("all %d executions", $evals_shown)
                : sprintf("%d of the %d executions", $evals_shown, $evals_total),
            $fi->eval_line, $fi->eval_fi->filename;

        push @msg, qq{
            The source code shown below is the text of just one of the calls to the eval.<br />\n
            This report page might not make much sense because the argument source code of those eval calls varied.<br />\n
        } if $fi->meta->{merged_fids_src_varied};

        return sprintf qq{<br /><div class="warn_title">NOTE!</div>\n
            <div class="warn">%s</div>
        }, join "<br />", @msg;
    },
);


sub calc_mad_from_objects {
    my ($ary, $meth, $ignore_zeros) = @_;
    return calculate_median_absolute_deviation([map { scalar $_->$meth } @$ary], $ignore_zeros);
}

sub subroutine_table {
    my ($profile, $fi, $max_subs, $sortby) = @_;
    $sortby ||= 'excl_time';

    my $subs_in_file = ($fi)
        ? $profile->subs_defined_in_file($fi, 0)
        : $profile->subname_subinfo_map;
    return "" unless $subs_in_file && %$subs_in_file;

    my $inc_path_regex = get_abs_paths_alternation_regex([$profile->inc], qr/^|\[/);
    my $filestr = ($fi) ? $fi->filename : undef;

    # XXX slow - use Schwartzian transform or via XS or Sort::Key
    my @subs =
        sort { $b->$sortby <=> $a->$sortby or $a->subname cmp $b->subname }
        values %$subs_in_file;

    # in the overall summary, don't show subs that were never called
    @subs = grep { $_->calls > 0 } @subs if !$fi;

    my $dev_incl_time  = calc_mad_from_objects(\@subs, 'incl_time',    1);
    my $dev_excl_time  = calc_mad_from_objects(\@subs, 'excl_time',    1);
    my $dev_calls      = calc_mad_from_objects(\@subs, 'calls',        1);
    my $dev_call_count = calc_mad_from_objects(\@subs, 'caller_count', 1);
    my $dev_call_fids  = calc_mad_from_objects(\@subs, 'caller_fids',  1);

    my @subs_to_show = ($max_subs) ? splice @subs, 0, $max_subs : @subs;
    my $qualifier = (@subs > @subs_to_show) ? "Top $max_subs " : "";
    my $max_pkg_name_len = max(map { length($_->package) } @subs_to_show);

    my $sub_links;

    my $sortby_desc = ($sortby eq 'excl_time') ? "exclusive time" : "inclusive time";
    $sub_links .= qq{
        <table id="subs_table" border="1" cellpadding="0" class="tablesorter">
        <caption>${qualifier}Subroutines</caption>
        <thead>
        <tr>
        <th>Calls</th>
        <th><span title="Number of Places sub is called from">P</span></th>
        <th><span title="Number of Files sub is called from">F</span></th>
        <th>Exclusive<br />Time</th>
        <th>Inclusive<br />Time</th>
        <th>Subroutine</th>
        </tr>
        </thead>
    };

    # XXX may not be appropriate if profiling wasn't continuous
    my $profiler_duration = $profile->{attribute}{profiler_duration};

    my @rows;
    $sub_links .= "<tbody>\n";
    for my $sub (@subs_to_show) {

        $sub_links .= "<tr>";

        $sub_links .= determine_severity($sub->calls        || 0, $dev_calls);
        $sub_links .= determine_severity($sub->caller_count || 0, $dev_call_count);
        $sub_links .= determine_severity($sub->caller_fids  || 0, $dev_call_fids);
        $sub_links .= determine_severity($sub->excl_time    || 0, $dev_excl_time, 1,
            sprintf("%.1f%%", $sub->excl_time/$profiler_duration*100)
        );
        $sub_links .= determine_severity($sub->incl_time    || 0, $dev_incl_time, 1,
            sprintf("%.1f%%", $sub->incl_time/$profiler_duration*100)
        );

        my @hints;

        # package and subname
        my $subname = $sub->subname;
        if (my $merged_sub_names = $sub->meta->{merged_sub_names}) {
            push @hints, sprintf "merge of %d subs", 1+scalar @$merged_sub_names;
        }
        my ($pkg, $subr) = ($subname =~ /^(.*::)(.*?)$/) ? ($1, $2) : ('', $subname);

        # remove OWN filename from eg __ANON__[(eval 3)[/long/path/name.pm:99]:53]
        #                     becomes __ANON__[(eval 3)[:99]:53]
        # XXX doesn't work right if $filestr isn't full filename
        $subr =~ s/\Q$filestr\E:(\d+)/:$1/g if $filestr;
        # remove @INC prefix from other paths
        $subr =~ s/$inc_path_regex//;    # for __ANON__[/very/long/path...]

        $sub_links .= qq{<td class="sub_name">};
        # hidden span is for tablesorter to sort on
        $sub_links .= sprintf(qq{<span style="display: none;">%s::%s</span>}, $pkg, $subr);

        if ($sub->is_xsub) {
            my $is_opcode = ($pkg eq 'CORE' or $subr =~ /^CORE:/);
            unshift @hints, ($is_opcode) ? 'opcode' : 'xsub';
        }
        if (my $recdepth = $sub->recur_max_depth) {
            unshift @hints, sprintf "recurses: max depth %d, inclusive time %s",
                $recdepth, fmt_time($sub->recur_incl_time);
        }

        $sub_links .= sprintf qq{%*s<a %s>%s</a>%s</span></td>},
            $max_pkg_name_len+2, $pkg,
            $reporter->href_for_sub($subname),
            $subr,
            (@hints) ? "&nbsp;(".join("; ",@hints).")" : "";

        $sub_links .= "</tr>\n";
    }
    $sub_links .= q{</tbody>};
    $sub_links .= q{</table>};

    # make table sortable if it contains all the subs
    push @on_ready_js, q{
        $("#subs_table").tablesorter({
            sortList: [[3,1]],
            headers: {
                3: { sorter: 'fmt_time' },
                4: { sorter: 'fmt_time' }
            }
        });
    } if @subs_to_show == @subs;

    return $sub_links;
}


$reporter->set_param(
    'datastart',
    sub {
        my ($profile, $fi) = @_;
        my $filestr = $fi->filename;

        my $sub_table = subroutine_table($profile, $fi, undef, undef);

        if ($sub_table and not $opt_minimal) {
            my $dot_file = html_safe_filename($filestr) . ".dot";

            $sub_table .= qq{
                Call graph for these subroutines as a
                <a href="http://en.wikipedia.org/wiki/Graphviz">Graphviz</a>
                <a href="$dot_file">dot language file</a>.
            };

            our %dot_file_generated;
            if ($dot_file_generated{$dot_file}++) { # just once for line/block/sub
                my $subs_in_file = $profile->subs_defined_in_file($filestr, 0);
                # include subs defined in this file
                # and/or called from subs defined in this file
                #warn "$dot_file: @{[ keys %$subs_in_file ]}\n";
                my $sub_filter = sub {
                    my ($si, $calledby) = @_;
                    return 1 if not defined $calledby;
                    my $subname = $si->subname;
                    my $include = ($subs_in_file->{$subname}
                                || $subs_in_file->{$calledby});
                    #warn "Call graph $subname<-$calledby: ".($include ? "SHOW" : "skip")."\n";
                    return $include;
                };
                output_subs_callgraph_dot_file($reporter, $dot_file, $sub_filter, 0);
            }
        }

        return qq{
        $sub_table
      <table border="1" cellpadding="0">
      <thead>
      <tr><th>Line</th>
      <th><span title="Number of statements executed">State<br />ments</span></th>
      <th><span title="Time spend executing statements on the line,
        excluding time spent executing statements in any called subroutines">Time<br />on line</span></th>
      <th><span title="Number of subroutines calls">Calls</span></th>
      <th><span title="Time spent in subroutines called (inclusive)">Time<br />in subs</span></th>
      <th class="left_indent_header">Code</th>
      </tr>\n
      </thead>
      <tbody>
    };
    }
);

$reporter->set_param( footer => sub {
    my ($profile, $fi) = @_;
    my $footer = get_footer($profile);
    return "</tbody></table></div>$footer</body></html>";
} );

$reporter->set_param(mk_report_source_line => \&mk_report_source_line);
$reporter->set_param(mk_report_xsub_line   => \&mk_report_xsub_line  );
$reporter->set_param(mk_report_separator_line => \&mk_report_separator_line  );

sub mk_report_source_line {
    my ($linenum, $line, $stats_for_line, $stats_for_file, $profile, $fi) = @_;

    my $l = sprintf(qq{<td class="h"><a name="%s"></a>%s</td>}, $linenum, $linenum);
    my $s = report_src_line(undef, $linenum, $line, $profile, $fi, $stats_for_line);

    return "<tr>$l<td></td><td></td><td></td><td></td>$s</tr>\n"
        if not %$stats_for_line;

    return join "",
        "<tr>$l",
        determine_severity($stats_for_line->{'calls'},     $stats_for_file->{'calls'}),
        determine_severity($stats_for_line->{'time'},      $stats_for_file->{'time'}, 1,
            \sprintf("Avg %s",fmt_time($stats_for_line->{'time/call'}))),
        determine_severity($stats_for_line->{'subcall_count'}, $stats_for_file->{subcall_count}, 0),
        determine_severity($stats_for_line->{'subcall_time'},  $stats_for_file->{subcall_time}, 1),
        $s, "</tr>\n";
}

sub mk_report_xsub_line {
    my ($subname, $line, $stats_for_line, $stats_for_file, $profile, $fi) = @_;
    (my $anchor = $subname) =~ s/\W/_/g;
    return join "",
        sprintf(qq{<tr><td class="h"><a name="%s"></a>%s</td>}, $anchor, ''),
        "<td></td><td></td><td></td><td></td>",
        report_src_line(undef, undef, $line, $profile, $fi, $stats_for_line),
        "</tr>\n";
}

sub mk_report_separator_line {
    my ($profile, $fi) = @_;
    return join "",
        sprintf(qq{<tr><td class="s"><a name="%s"></a>%s</td>}, '', '&nbsp;'),
        "<td></td><td></td><td></td><td></td>",
        '<td class="s"></td>',
        "</tr>\n";
}


sub _escape_html {
    local $_ = shift;
    s/\t/        /g; # XXX incorrect for most non-leading tabs
    s/&/&amp;/g;
    s/</&lt;/g;
    s/>/&gt;/g;
    s{\n}{<br />}g;  # for xsub pseudo-sub declarations
    s{"}{&quot;}g;   # for attributes like title="..."
    return $_;
}


sub report_src_line {
    my ($value, undef, $linesrc, $profile, $fi, $stats_for_line) = @_;

    $linesrc = _escape_html($linesrc);

    our $inc_path_regex ||= get_abs_paths_alternation_regex([$profile->inc]);

    my @prologue;

    # for each of the subs defined on this line, who called them
    my $subdef_info = $stats_for_line->{subdef_info} || [];
    for my $sub_info (@$subdef_info) {
        my $callers = $sub_info->caller_fid_line_places;
        next unless $callers && %$callers;
        my $subname = $sub_info->subname;

        my @callers;
        while (my ($fid, $fid_line_info) = each %$callers) {
            for my $line (keys %$fid_line_info) {
                my $sc = $fid_line_info->{$line};
                warn "$linesrc $subname caller info missing" if !@$sc;
                next if !@$sc;
                push @callers, [ $fid, $line, @$sc ];
            }
        }
        my $total_calls = sum(my @caller_calls = map { $_->[2] } @callers);

        push @prologue, sprintf "# spent %s within %s which was called%s:",
            fmt_incl_excl_time($sub_info->incl_time, $sub_info->excl_time),
            $subname,
            ($total_calls <= 1) ? ""
                : sprintf(" %d times, avg %s/call",
                    $total_calls, fmt_time($sub_info->incl_time / $total_calls));
        push @prologue, sprintf "# (data for this subroutine includes %d others that were merged with it)",
                scalar @{$sub_info->meta->{merged_sub_names}}
            if $sub_info->meta->{merged_sub_names};
        my $max_calls = max(@caller_calls);

        # order by most frequent caller first, then by time
        @callers = sort { $b->[2] <=> $a->[2] || $b->[3] <=> $a->[3] } @callers;

        for my $caller (@callers) {
            my ($fid, $line, $count, $incl_time, $excl_time, undef, undef,
                undef, undef, $calling_subs) = @$caller;

            my @subnames = sort keys %{$calling_subs || {}};
            my $subname = (@subnames) ? " by " . join(" or ", @subnames) : "";

            my $caller_fi = $profile->fileinfo_of($fid);
            if (!$caller_fi) { # should never happen
                warn sprintf "Caller of %s, from fid %d line %d has no fileinfo (%s)",
                    $sub_info, $fid, $line, $subname;
                    die 2;
                next;
            }

            my $avg_time = "";
            $avg_time = sprintf ", avg %s/call", fmt_time($incl_time / $count)
                if $count > 1;
            my $times = sprintf " (%s+%s)", fmt_time($excl_time),
                fmt_time($incl_time - $excl_time);

            my $filename = $caller_fi->filename($fid);
            my $line_desc = "line $line of $filename";
            $line_desc =~ s/ of \Q$filename\E$//g if $filename eq $fi->filename;
            # remove @INC prefix from paths
            $line_desc =~ s/$inc_path_regex//g;

            my $href = $reporter->href_for_file($caller_fi, $line);
            push @prologue,
                sprintf q{# %*s times%s%s at <a %s>%s</a>%s},
                length($max_calls), $count, $times, $subname, $href,
                $line_desc, $avg_time;
            $prologue[-1] =~ s/^(# +)1 times/$1   once/;  # better English
        }
    }
    my $prologue = '';
    $prologue = sprintf qq{<div class="calls"><div class="calls_in">%s</div></div>}, join("\n", @prologue)
        if @prologue;

    my $epilogue = '';
    my $ws;

    # give details of each of the subs called by this line
    my $subcall_info = $stats_for_line->{subcall_info};
    if ($subcall_info && %$subcall_info) {

        my @calls_to = sort {
            $subcall_info->{$b}[1] <=> $subcall_info->{$a}[1] or    # incl_time
                $a cmp $b
        } keys %$subcall_info;
        my $max_calls_to = max(map { $_->[0] } values %$subcall_info);
        $ws ||= ($linesrc =~ m/^((?:&nbsp;|\s)+)/) ? $1 : '';

        my $subs_called_html = join "\n", map {
            my $subname = $_;
            my ($count, $incl_time, $reci_time, $rec_depth) = (@{$subcall_info->{$subname}})[0,1,5,6];
            my $html = sprintf qq{%s# spent %s making %*d call%s to }, $ws,
                fmt_time($incl_time+$reci_time, 5), length($max_calls_to),
                $count, $count == 1 ? "" : "s";
            (my $subname_trimmed = $subname) =~ s/$inc_path_regex//g;
            $html .= sprintf qq{<a %s>%s</a>}, $reporter->href_for_sub($subname), $subname_trimmed;
            $html .= sprintf qq{, avg %s/call}, fmt_time(($incl_time+$reci_time) / $count),
                if $count > 1;
            if ($rec_depth) {
                $html .= sprintf qq{, recursion: max depth %d, sum of overlapping time %s},
                    $rec_depth, fmt_time($reci_time);
            }
            $html;
        } @calls_to;
        $epilogue .= sprintf qq{<div class="calls"><div class="calls_out">%s</div></div>}, $subs_called_html;
    }

    # give details of each of the string evals executed on this line
    my $evals_called = $stats_for_line->{evalcall_info};
    if ($evals_called && %$evals_called) {
        $ws ||= ($linesrc =~ m/^((?:&nbsp;|\s)+)/) ? $1 : '';

        my @eval_fis = sort {
            $b->sum_of_stmts_time(1) <=> $a->sum_of_stmts_time(1) or
            $a->filename cmp $b->filename
        } values %$evals_called;

        my $evals_called_html = join "\n", map {
            my $eval_fi = $_;
            my $sum_of_stmts_time = $eval_fi->sum_of_stmts_time;
            my ($what, $extra) = ("string eval", "");

            my $merged_fids = $eval_fi->meta->{merged_fids};
            if ($merged_fids) {
                $what = sprintf "%d string evals (merged)", 1+@$merged_fids;
            }

            my @nested_evals = $eval_fi->has_evals(1);
            my $nest_eval_time = 0;
            if (@nested_evals) {
                $nest_eval_time = sum map { $_->sum_of_stmts_time } @nested_evals;
                $extra .= sprintf ", %s here plus %s in %d nested evals",
                        fmt_time($sum_of_stmts_time), fmt_time($nest_eval_time),
                        scalar @nested_evals
                    if $nest_eval_time;
            }

            if (my @subs_defined = $eval_fi->subs_defined(1)) {
                my $sub_count  = @subs_defined;
                my $call_count = sum map { $_->calls } @subs_defined;
                my $excl_time  = sum map { $_->excl_time } @subs_defined;
                $extra .= sprintf "<br />%s# includes %s spent executing %d call%s to %d sub%s defined therein.",
                        $ws, fmt_time($excl_time, 2),
                        $call_count, ($call_count != 1) ? 's' : '',
                        $sub_count,  ($sub_count  != 1) ? 's' : ''
                    if $call_count;
            }

            my $link = sprintf(q{<a %s>%s</a>}, $reporter->href_for_file($eval_fi), $what);
            my $html = sprintf qq{%s# spent %s executing statements in %s%s},
                $ws, fmt_time($sum_of_stmts_time+$nest_eval_time, 5),
                $link, $extra;

            $html;
        } @eval_fis;

        $epilogue .= sprintf qq{<div class="calls"><div class="calls_out">%s</div></div>}, $evals_called_html;
    }

    return qq{<td class="s">$prologue$linesrc$epilogue</td>};
}


# set output options
$reporter->set_param('suffix', '.html');

# output a css file too (optional, but good for pretty pages)
$reporter->_output_additional('style.css', get_css());

# generate the files
$reporter->report();

output_subs_index_page($reporter, "index-subs-excl.html", 'excl_time');
output_index_page($reporter, "index.html");

output_js_files($reporter);

open_browser_on("$opt_out/index.html") if $opt_open;

exit 0;

#
# SUBROUTINES
#

# output an html indexing page or subroutines
sub output_subs_index_page {
    my ($r, $filename, $sortby) = @_;
    my $profile = $reporter->{profile};

    open my $fh, '>', "$opt_out/$filename"
        or croak "Unable to open file $opt_out/$filename: $!";

    print $fh get_html_header("Subroutine Index - NYTProf");
    print $fh get_page_header(profile => $profile, title => "Performance Profile Subroutine Index");
    print $fh qq{<div class="body_content"><br />};

    # Show top subs across all files
    print $fh subroutine_table($profile, undef, 0, $sortby);

    my $footer = get_footer($profile);
    print $fh "</div>$footer</body></html>";
    close $fh;
}


# output an html indexing page with some information to help navigate potential
# large numbers of profiled files. Optional, recommended
sub output_index_page {
    my ($r, $filename) = @_;
    my $profile = $reporter->{profile};

    ###
    open my $fh, '>', "$opt_out/$filename"
        or croak "Unable to open file $opt_out/$filename: $!";

    my $application = $profile->{attribute}{application};
    (my $app = $application) =~ s:.*/::; # basename
    $app =~ s/ .*//;

    print $fh get_html_header("NYTProf $app");
    print $fh get_page_header(profile => $profile, title => "Performance Profile Index", skip_link_to_index=>1);
    print $fh qq{
        <div class="body_content"><br />
    };

    # overall description
    my @all_fileinfos = $profile->all_fileinfos;
    my $eval_fileinfos = $profile->eval_fileinfos;
    my $summary = sprintf "Profile of %s for %s,",
        $application, fmt_time($profile->{attribute}{profiler_duration});
    $summary .= sprintf " executing %d statements",
         $profile->{attribute}{total_stmts_measured}
        -$profile->{attribute}{total_stmts_discounted};
    $summary .= sprintf " and %d subroutine calls",
         $profile->{attribute}{total_sub_calls};
    $summary .= sprintf " in %d source files",
        @all_fileinfos - $eval_fileinfos;
    $summary .= sprintf " and %d string evals",
        $eval_fileinfos if $eval_fileinfos;
    printf $fh qq{<div class="index_summary">%s.</div>}, _escape_html($summary);

    # generate name-sorted select options for files, if there are many
    if ($profile->noneval_fileinfos > 30) {
        print $fh qq{<div class="jump_to_file"><form name="jump">};
        print $fh qq{<select name="file" onChange="location.href=document.jump.file.value;">\n};
        printf $fh qq{<option disabled="disabled">%s</option>\n}, "Jump to file...";
        foreach my $fi (sort { $a->filename cmp $b->filename } $profile->noneval_fileinfos) {
            printf $fh qq{<option value="#f%s">%s</option>\n},
                $fi->fid, _escape_html($fi->filename);
        }
        print $fh "</select></form></div>\n";
    }

    # Show top subs across all files
    my $max_subs = 15; # keep it less than a page so users can see the file table
    my $all_subs = keys %{$profile->{sub_subinfo}};
    print $fh subroutine_table($profile, undef, $max_subs, undef);
    if ($all_subs > $max_subs) {
        print $fh sprintf qq{<div class="table_footer">
            See <a href="%s">all %d subroutines</a>
            </div>
        }, "index-subs-excl.html", $all_subs;
    }

    if ($json_any) {
        output_subs_treemap_page($reporter, "subs-treemap-excl.html",
            "Subroutine Exclusive Time Treemap", sub { shift->excl_time });
        print $fh q{<br/>You can view a <a href="subs-treemap-excl.html">treemap of subroutine exclusive time</a>, grouped by package.<br/>};
    }
    else {
        print $fh q{<br/>(Can't create visual treemap of subroutine exclusive times without the <a href="http://search.cpan.org/dist/JSON-Any/">JSON::Any</a> module.)<br/>};
    }

    if (not $opt_minimal) {
        output_subs_callgraph_dot_file($reporter, "packages-callgraph.dot", undef, 1);
        print $fh q{NYTProf also generates call-graph files in }
            .q{<a href="http://en.wikipedia.org/wiki/Graphviz">Graphviz</a> format: }
            .q{<a href="packages-callgraph.dot">inter-package calls</a>};
        output_subs_callgraph_dot_file($reporter, "subs-callgraph.dot", undef, 0);
        print $fh q{, <a href="subs-callgraph.dot">all inter-subroutine calls</a>};
        print $fh q{ (probably too complex to render easily)}
            if $all_subs > 200; # arbitrary
        print $fh q{.<br/>};
    }

    print $fh q{<br/>You can hover over some table cells and headings to view extra information.};
    print $fh q{<br/>Some table column headings can be clicked on to sort the table by that column.};
    print $fh q{<br/>};

    output_file_table($fh, $profile, 1);

    my $footer = get_footer($profile);
    print $fh "</div>$footer</body></html>";
    close $fh;
}


# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
# treemap subs

sub js_for_new_treemap {
    my ($name, $new_args, $tree_data) = @_;

    return '' unless $json_any;

    my $default_new_args = {
        titleHeight => 0, # no titles
        addLeftClickHandler => 1,   # zoom in
        #addRightClickHandler => 1, # zoom out (XXX but disables right click menu)
        offset => 0, # (0/2/4) extra padding around nested levels

        Color => {
            allow => 1,  
            # value range for the $color property
            minValue => 0,  
            maxValue => scalar @treemap_colors,  
            # corresponding color range [R,G,B]:
            minColorValue => [0, 255, 50],  
            maxColorValue => [255, 0, 50],
        },

        Tips => {  
            allow => 1,
            offsetX => 20,  
            offsetY => 20,  
        },

        selectPathOnHover => 1, # adds "over-<foo>" css class to elements
    };
    exists $new_args->{$_} or $new_args->{$_} = $default_new_args->{$_}
        for keys %$default_new_args;

    my $new_args_json  = $json_any->objToJson($new_args);
    my $tree_data_json = $json_any->objToJson($tree_data);

    my $js = qq{
        function init_$name() {
            var tm_args = $new_args_json;

            //This method is invoked when a DOM element is created.  
            //Its useful to set DOM event handlers here or manipulate  
            //the DOM Treemap nodes.  
            tm_args.onCreateElement = function(content, tree, isLeaf, leaf){  
                //Add background image for cushion effect
                if(isLeaf) { 
                    var style = leaf.style,   
                    width = parseInt(style.width) - 2,   
                    height = parseInt(style.height) - 2;  
                    // don't add gradient if too small to be worth the cost
                    if (width < 10 || height < 10) {   // is narrow
                        if (width < 50 && height < 50) // is small
                            return;
                    }
                    leaf.innerHTML = tree.name +   
                        "<img src=\\"js/jit/gradient-cushion1.png\\" " +  
                        " style=\\"position:absolute;top:0;left:0;width:" +   
                        width+"px;height:" + height+"px;\\" />";  
                    style.width = width + "px";  
                    style.height = height + "px";  
                }  
            };

            // add content to the tooltip when a node is hovered  
            // move to separate function later
            tm_args.Tips.onShow = function(tip, node, isLeaf, domElement) {
                tip.innerHTML = node.data.tip;
            };

            TM.Squarified.implement({
                'onLeftClick': function(elem) { // zoom in one level
                    //if is leaf
                    var node = TreeUtil.getSubtree(this.tree, elem.parentNode.id);
                    if(node.children && node.children.length == 0) {
                        var oldparent = node, newparent = node;
                        while(newparent.id != this.shownTree.id) {
                            oldparent = newparent;
                            newparent = TreeUtil.getParent(this.tree, newparent.id);
                        }
                        this.view(oldparent.id);
                    } else {
                      this.enter(elem);
                    }
                }
            });

            TM.Squarified.implement({
                createBox: function(json, coord, html) {
                    if((coord.width * coord.height > 1) && json.data.\$area > 0) {
                        if(!this.leaf(json))
                            var box = this.headBox(json, coord) + this.bodyBox(html, coord);
                        else
                            var box = this.leafBox(json, coord);
                        return this.contentBox(json, coord, box);
                    } else {
                        return ""; //return empty string
                    }
                }
            });

            var $name = new TM.Squarified(tm_args);

            var json = $tree_data_json;

            $name.loadJSON(json);
        }
    };
    return $js;
}


sub pl {    # dumb but sufficient pluralization
    my ($fmt, $n) = @_;
    sprintf $fmt.($n == 1 ? "" : "s"), $n;
}


sub package_subinfo_map_to_tm_data {
    my ($package_tree_subinfo_map, $area_sub) = @_;

    my $sub_tip_html = sub {
        my $si = shift;
        my @html;
        push @html, sprintf "<p><b>%s</b></p><p>", $si->subname;

        push @html, sprintf "Called %s from %s in %s",
            pl("%d time", $si->calls),
            pl("%d place", scalar $si->caller_places),
            pl("%d file", scalar $si->caller_fids);

        my $total_time = $si->profile->{attribute}{profiler_duration};
        my $incl_time = $si->incl_time;
        push @html, sprintf "Inclusive time: %s, %.2f%%",
                fmt_time($incl_time), $incl_time/$total_time*100;
        my $excl_time = $si->excl_time;
        push @html, sprintf "Exclusive time: %s, %.2f%%",
                fmt_time($excl_time), $excl_time/$total_time*100
            if $excl_time ne $incl_time;

        if (my $mrd = $si->recur_max_depth) {
            push @html, sprintf "Recursion: max depth %d, recursive inclusive time %s",
                $mrd, fmt_time($si->recur_incl_time);
        }

        return join("<br />", @html)."</p>";
    };

    my $leaf_data_sub = sub {
        my ($subinfo, $area_from, $color) = @_;
        my $data = {
            '$area' => $area_from->($subinfo),
            '$color' => $color,
            tip => $sub_tip_html->($subinfo),
            map({ $_ => $subinfo->$_() }
                qw(subname incl_time excl_time))
        };
        return $data;
    };

    our $nid;
    my $node_mapper;
    $node_mapper = sub {
        my ($k, $v, $title) = @_;
        $title = ($title) ? '::'.$k : $k;

        my $n = {
            id => "n".++$nid,
            name => $title,
        };

        my @kids;
        for my $pkg_elem (keys %$v) {
            my $infos = $v->{$pkg_elem};

            if (ref $infos eq 'HASH') { # recurse into subpackages
                push @kids, $node_mapper->($pkg_elem, $infos, $title);
                next;
            }

            # subs within this package
            our $color_seqn; # all subs in pkg get same color
            my $color = $treemap_colors[ $color_seqn++ % @treemap_colors ];

            for my $info (@$infos) {

                # don't bother including subs that don't have any data
                # (unless we've not got any subs yet, to avoid problems elsewhere)
                next if $area_sub->($info) <= 0;

                push @kids, {
                    id => ++$nid."-".$info->subname,
                    name => $info->subname_without_package,
                    data => $leaf_data_sub->($info, $area_sub, $color),
                    children => [],
                };
            }
        }

        $n->{data}{'$area'} = (@kids) ? sum(map { $_->{data}{'$area'} } @kids) : 0
            if not defined $n->{data}{'$area'};
        $n->{children} = \@kids;

        return $n;
    };

    return $node_mapper->('', $package_tree_subinfo_map, '');
}


sub output_treemap_code {
    my (%spec) = @_;
    my $fh = $spec{fh};
    my $tm_id = 'tm'.$spec{id};
    my $root_id = 'infovis'.$spec{id};

    my $treemap_data = $spec{get_data}->();
    $treemap_data->{name} = $spec{title} if $spec{title};

    my $tm_js = js_for_new_treemap($tm_id, { rootId => $root_id }, $treemap_data);
    print $fh qq{<script type="text/javascript">$tm_js\n</script>\n};

    push @on_ready_js, qq{init_$tm_id(); };
    return $root_id;
}


sub output_subs_treemap_page {
    my ($r, $filename, $title, $area_sub) = @_;
    my $profile = $reporter->{profile};

    open(my $fh, '>', "$opt_out/$filename")
        or croak "Unable to open file $opt_out/$filename: $!";

    $title ||= "Subroutine Time Treemap";
    print $fh get_html_header("$title - NYTProf", { add_jit => "Treemap" });
    print $fh get_page_header( profile => $profile, title => $title);

    my @specs;
    push @specs, {
        id => 1,
        title => "Treemap of subroutine exclusive time",
        get_data => sub {
            package_subinfo_map_to_tm_data(
                $profile->package_subinfo_map(0,1),
                $area_sub || sub { shift->excl_time }, 0);
        }
    };

    my @root_ids;
    for my $spec (@specs) {
        push @root_ids, output_treemap_code(
            fh => $fh,
            profile => $profile,
            %$spec
        );
    }

    print $fh qq{<div class="vis_header"><br/>Boxes represent time spent in a subroutine. Coloring represents packages. Click to drill-down into package hierarchy, reload page to reset.</div>\n};
    print $fh qq{<div id="infovis">\n};
    print $fh qq{<br /><div id="$_"></div>\n} for @root_ids;
    print $fh qq{</div>\n};

    my $footer = get_footer($profile);
    print $fh "$footer</body></html>";
    close $fh;
}


# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

sub output_subs_callgraph_dot_file {
    my ($r, $filename, $sub_filter, $only_show_packages) = @_;
    my $profile = $reporter->{profile};
    my $subinfos = $profile->subname_subinfo_map;

    my $dot_file = "$opt_out/$filename";
    open my $fh, '>', $dot_file
        or croak "Unable to open file $dot_file: $!";

    my $inc_path_regex = get_abs_paths_alternation_regex([$profile->inc], qr/^|\[/);
    my $dotnode = sub {
        my $name = shift;
        $name =~ s/$inc_path_regex//;
        $name =~ s/"/\\"/g;
        return '"'.$name.'"';
    };

    print $fh "digraph {\n"; # }
    print $fh "graph [overlap=false]\n"; # target="???", URL="???"

    # gather link info
    my %sub2called_by;
    for my $subname (keys %$subinfos) {
        my $si = $subinfos->{$subname};
        next unless $si->calls; # skip subs never called

        next if $sub_filter and not $sub_filter->($si, undef);

        my $called_by_subnames = $si->called_by_subnames;
        if (!%$called_by_subnames) { 
            warn sprintf "%s has no caller subnames but a call count of %d\n",
                    $subname, $si->calls;
            next;
        }

        if ($sub_filter) {
            my @delete = grep { !$sub_filter->($si, $_) } keys %$called_by_subnames;
            if (@delete) {
                # shallow copy so we can edit it safely
                $called_by_subnames = { %$called_by_subnames };
                delete @{$called_by_subnames}{@delete};
            }
            next if !keys %$called_by_subnames;
        }

        $sub2called_by{$subname} = $called_by_subnames;
    }

    # list of all subs to be included in graph (has duplicates)
    my %pkg_subs;
    for (keys %sub2called_by, map { keys %$_ } values %sub2called_by) {
        m/^(.*)::(.*)?$/ or warn "Strange sub name '$_'";
        $pkg_subs{$1}{$_} = $sub2called_by{$_} || {};
    }

#stmt : node_stmt | edge_stmt | attr_stmt | ID '=' ID | subgraph
#attr_stmt : (graph | node | edge) attr_list
#attr_list : '[' [ a_list ] ']' [ attr_list ]
#a_list : ID [ '=' ID ] [ ',' ] [ a_list ]
#subgraph : [ subgraph [ ID ] ] '{' stmt_list '}'

    if ($only_show_packages) {
        my %once;
        # XXX many shapes cause v.large graphs with nodes v.far apart
        # when using neato (energy minimized) possibly a neato bug
        # some shapes, like doublecircle seem to avoid the problem.
        print $fh "node [shape=doublecircle];\n";
        while ( my ($pkg, $subs) = each %pkg_subs ) {
            my @called_by = map { keys %$_ } values %$subs;

            for my $called_by (@called_by) {
                (my $called_by_pkg = $called_by) =~ s/^(.*)::.*?$/$1/;
                my $link = sprintf qq{%s -> %s;\n},
                    $dotnode->("$called_by_pkg"), $dotnode->("$pkg");
                $once{$link} = 1;
            }

        }
        print $fh $_ for keys %once;

    }
    else {

        # output nodes and gather link info
        while ( my ($pkg, $pkg_subs) = each %pkg_subs) {
            (my $pkgmangled = $pkg) =~ s/\W+/_/g;

            # node_stmt: node_id [ attr_list ]
            printf $fh "subgraph cluster_%s {\n", $pkgmangled; # }
            printf $fh "\tlabel=%s;\n", $dotnode->($pkg);

            for my $subname (keys %$pkg_subs) {
                # node_stmt: node_id [ attr_list ]
                #printf $fh qq{\tnode [ %s ]}, ...
                printf $fh qq{\t%s;\n}, $dotnode->($subname);
            }

            # { - just to balance the brace below
            printf $fh "}\n";
        }

        while ( my ($subname, $called_by_subnames) = each %sub2called_by ) {

            for my $called_by (keys %$called_by_subnames) {
                # edge_stmt : (node_id | subgraph) edgeRHS [ attr_list ]
                # edgeRHS   : edgeop (node_id | subgraph) [ edgeRHS ]
                printf $fh qq{%s -> %s;\n},
                    $dotnode->($called_by), $dotnode->($subname);
            }

        }
    }

    print $fh "}\n";

    close $fh;
    #system("open '$dot_file'"); die 1;

    return;
}

# = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =

sub output_js_files {
    my ($profile) = @_;
    # find the js, gif, css etc files installed with Devel::NYTProf
    (my $lib = $INC{"Devel/NYTProf/Data.pm"}) =~ s/\/Data\.pm$//;
    $lib =~ s{usr/lib/perl5}{usr/share/perl5};
    _copy_dir("$lib/js", "$opt_out/js");
}

sub _copy_dir {
    my ($srcdir, $dstdir) = @_;
    mkdir $dstdir or die "Can't create $dstdir directory: $!\n"
        unless -d $dstdir;
    for my $src (glob("$srcdir/*")) {
        (my $name = $src) =~ s{.*/}{};
        next if $name =~ m/^\./; # skip . and .. etc
        my $dstname = "$dstdir/$name";
        if (not -f $src) {
            _copy_dir($src, $dstname) if -d $src; # recurse
            next; # skip non-ordinary-files
        }
        unlink $dstname;
        copy($src, $dstname)
            or warn "Unable to copy $src to $dstname: $!";
    }
}


sub open_browser_on {
    my $index = shift;
    if (eval { require ActiveState::Browser; 1 }) {
        ActiveState::Browser::open($index);
    }
    else {
        my $BROWSER;
        if ($^O eq "MSWin32") {
            $BROWSER = "start %s";
        }
        elsif ($^O eq "darwin") {
            $BROWSER = "/usr/bin/open %s";
        }
        else {
            my @try = qw(xdg-open);
            if ($ENV{BROWSER}) {
                push(@try, split(/:/, $ENV{BROWSER}));
            }
            else {
                push(@try, qw(firefox galeon mozilla opera netscape));
            }
            unshift(@try, "kfmclient") if $ENV{KDE_FULL_SESSION};
            unshift(@try, "gnome-open") if $ENV{GNOME_DESKTOP_SESSION_ID};
            for (@try) {
                if (have_prog($_)) {
                    if ($_ eq "kfmclient") {
                        $BROWSER .= " openURL %s";
                    }
                    elsif ($_ eq "gnome-open" || $_ eq "opera") {
                        $BROWSER = "$_ %s";
                    }
                    else {
                        $BROWSER = "$_ %s &";
                    }
                    last;
                }
            }
        }
        if ($BROWSER) {
            (my $cmd = $BROWSER) =~ s/%s/"$index"/;
            #warn "Running $cmd\n";
            system($cmd);
        }
        else {
            warn "Don't know how to invoke your web browser.\nPlease visit $index yourself!\n";
        }
    }
}


sub have_prog {
    my $prog = shift;
    for (split(":", $ENV{PATH})) {
        return 1 if -x "$_/$prog";
    }
    return 0;
}


sub output_file_table {
    my ($fh, $profile, $add_totals) = @_;

    # generate time-sorted sections for files
    print $fh qq{
        <table id="filestable" border="1" cellspacing="0" class="tablesorter">
        <caption>Source Code Files &mdash; ordered by exclusive time then name</caption>
    };
    print $fh qq{
        <thead><tr class="index">
        <th>Stmts</th><th>Exclusive<br />Time</th>
        <th>Reports</th><th>Source File</th>
        </tr></thead>
        <tbody>
    };

    my $inc_path_regex = get_abs_paths_alternation_regex([$profile->inc], qr/^|\[/);

    my $allTimes = $profile->{attribute}{total_stmts_duration};
    my $allCalls = $profile->{attribute}{total_stmts_measured}
                 - $profile->{attribute}{total_stmts_discounted};
    # file in which sawampersand was noted during profiling
    my $sawampersand_fi = $profile->fileinfo_of($profile->{attribute}{sawampersand_fid}, 1);

    my (@t_stmt_exec, @t_stmt_time);
    my @fis = $profile->noneval_fileinfos;
    @fis = sort { $b->meta->{'time'} <=> $a->meta->{'time'} } @fis;

    my $dev_time = calculate_median_absolute_deviation([map { scalar $_->meta->{'time'} } @fis], 1);
    
    foreach my $fi (@fis) {
        my $meta = $fi->meta;
        my $fid = $fi->fid;
        my @extra;
        my $css_class = 'index';

        # The stats in this table include rolled up sums of nested evals.

        my ($eval_stmts, $eval_time) = (0,0);
        if (my @has_evals = $fi->has_evals(1)) {
            my $n_evals = scalar @has_evals;
            my $msg = sprintf "including %d string eval%s", $n_evals, ($n_evals>1) ? "s" : "";
            if (my @nested = grep { $_->eval_fid != $fid } @has_evals) {
                $msg .= sprintf ": %d direct plus %d nested",
                    $n_evals-@nested, scalar @nested;
            }
            push @extra, $msg;
            $eval_stmts = sum(map { $_->sum_of_stmts_count } @has_evals);
            $eval_time  = sum(map { $_->sum_of_stmts_time  } @has_evals);
        }
        # is this file one where we sawampersand (or contains an eval that is)?
        if ($sawampersand_fi && $fi == ($sawampersand_fi->outer || $sawampersand_fi)) {
            my $in_eval = ($fi == $sawampersand_fi)
                ? 'here'
                : sprintf q{<a %s>in eval here</a>}, $reporter->href_for_file($sawampersand_fi, undef, 'line');
            push @extra, sprintf qq{variables that impact regex performance for whole application seen $in_eval},
            $css_class = "warn $css_class";
        }

        print $fh qq{<tr class="$css_class">};

        my $stmts = $meta->{'calls'} + $eval_stmts;
        print $fh determine_severity($stmts,     undef, 0,
            ($allCalls) ? sprintf("%.1f%%", $stmts/$allCalls*100) : ''
        );
        push @t_stmt_exec, $stmts;

        my $time = $meta->{'time'} + $eval_time;
        print $fh determine_severity($time,      $dev_time, 1,
            ($allTimes) ? sprintf("%.1f%%", $time/$allTimes*100) : ''
        );
        push @t_stmt_time, $time;


        my %levels = reverse %{$profile->get_profile_levels};
        my $rep_links = join '&nbsp;&bull;&nbsp;', map {
            sprintf(qq{<a %s>%s</a>}, $reporter->href_for_file($fi, undef, $_), $_)
        } grep { $levels{$_} } qw(line block sub);
        print $fh "<td>$rep_links</td>";

        print $fh sprintf q{<td><a name="f%s" title="%s">%s</a> %s</td>},
            $fi->fid, $fi->abs_filename, $fi->filename_without_inc,
            (@extra) ? sprintf("(%s)", join "; ", @extra) : "";
        print $fh "</tr>\n";
    }
    print $fh "</tbody>\n";

    if ($add_totals) {
        print $fh "<tfoot>\n";
        my $stats_fmt =
            qq{<tr class="index"><td class="n">%s</td><td class="n">%s</td><td colspan="2" style="font-style: italic">%s</td></tr>};
        my $t_notes = "";
        my $stmt_time_diff = $allTimes - sum(@t_stmt_time);
        if (sum(@t_stmt_exec) != $allCalls or $stmt_time_diff > 0.001) {
            $stmt_time_diff = ($stmt_time_diff > 0.001)
                ? sprintf(" and %s", fmt_time($stmt_time_diff)) : "";
            $t_notes = sprintf "(%d statements%s are unaccounted for)",
                $allCalls - sum(@t_stmt_exec), $stmt_time_diff;
        }
        print $fh sprintf $stats_fmt, fmt_float(sum(@t_stmt_exec)), fmt_time(sum(@t_stmt_time)),
                "Total $t_notes"
            if @t_stmt_exec > 1 or $t_notes;

        if (@t_stmt_exec > 1) {
            print $fh sprintf $stats_fmt,
                int(fmt_float(sum(@t_stmt_exec) / @t_stmt_exec)),
                    fmt_time( sum(@t_stmt_time) / @t_stmt_time), "Average";
            print $fh sprintf $stats_fmt, '', fmt_time( $dev_time->[1]), "Median";
            print $fh sprintf $stats_fmt, '', fmt_float($dev_time->[0]), "Deviation"
                if $dev_time->[0];
        }

        print $fh "</tfoot>\n";
    }

    print $fh '</table>';
    push @on_ready_js, q{
        $("#filestable").tablesorter({
            sortList: [[1,1],[3,1]],
            headers: {
                1: { sorter: 'fmt_time' },
                2: { sorter: false      }
            }
        });
    };

    return "";
}

# calculates how good or bad the time is for a file based on the others
sub determine_severity {
    my $val = shift;
    return "<td></td>" unless defined $val;
    my $stats = shift;    # @_[3] is like arrayref (deviation, mean)
    my $is_time = shift;
    my $title   = shift;

    # normalize the width/precision so that the tables look good.
    my $fmt_val = ($is_time)
        ? fmt_time($val)
        : fmt_float($val, NUMERIC_PRECISION);

    my $class;
    if (defined $stats) {

        my $devs = ($val - $stats->[1]);    #stats->[1] is the mean.
        $devs /= $stats->[0] if $stats->[0];    # no divide by zero when all values equal

        if ($devs < 0) {                        # fast
            $class = 'c3';
        }
        elsif ($devs < SEVERITY_GOOD) {
            $class = 'c3';
        }
        elsif ($devs < SEVERITY_BAD) {
            $class = 'c2';
        }
        elsif ($devs < SEVERITY_SEVERE) {
            $class = 'c1';
        }
        else {
            $class = 'c0';
        }
    }
    else {
        $class = 'n';
    }

    if ($title) {
        $title = (ref $title) ? $$title : _escape_html($title);
        $fmt_val = qq{<span title="$title">$fmt_val</span>};
    }

    return qq{<td class="$class">$fmt_val</td>};
}


# return an html string with buttons for switching between profile levels of detail
sub get_level_buttons {
    my $mode_ref = shift;
    my $file     = shift;
    my $level    = shift;

    my $html = join '&emsp;&bull;&emsp;', map {
        my $mode = $mode_ref->{$_};

        if ($mode eq $level) {
            qq{<span class="mode_btn mode_btn_selected">$mode view</span>};
        }
        else {
            my $mode_file = $file;

            # replace the mode specifier in the output file name -- file-name-MODE.html
            $mode_file =~ s/(.*-).*?\.html/$1$mode.html/o;

            qq{<span class="mode_btn"><a href="$mode_file">$mode view</a></span>};
        }
    } keys %$mode_ref;

    return qq{<span>&laquo;&emsp;$html&emsp;&raquo;</span>};
}


sub get_footer {
    my ($profile) = @_;
    my $version = $Devel::NYTProf::Core::VERSION;

    my $js = '';
    if (@on_ready_js) {
        # XXX I've no idea why this workaround is needed (or works).
        # without it the file table on the index page isn't sortable
        @on_ready_js = reverse @on_ready_js;

        $js = sprintf q{
            <script type="text/javascript"> $(document).ready(function() { %s } ); </script>
        }, join("\n", '', @on_ready_js, '');
        @on_ready_js = ();
    };

    # spacing so links to #line near can put right line at top near the bottom of the report
    my $spacing = "<br />" x 10;
    return qq{
        $js
        <div class="footer">Report produced by the
        <a href="http://search.cpan.org/dist/Devel-NYTProf/">NYTProf $version</a>
        Perl profiler, developed by
        <a href="http://www.linkedin.com/in/timbunce">Tim Bunce</a> and
        <a href="http://code.nytimes.com">Adam Kaplan</a>.
        </div>
        $spacing
    };
}

# returns the generic header string.  Here only to make the code more readable.
sub get_html_header {
    my $title = shift || "Profile Index - NYTProf";
    my $opts = shift || {};

    $title = _escape_html($title);

    my $html = <<EOD;
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
EOD
    $html = "<html>" if $opts->{not_xhtml};
    $html .= <<EOD;
<!--
This file was generated by Devel::NYTProf version $Devel::NYTProf::Core::VERSION
-->
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Language" content="en-us" />
    <title>$title</title>
EOD

    $html .= qq{<link rel="stylesheet" type="text/css" href="style.css" />\n}
        unless $opts->{skip_style};

    if (my $css = $opts->{add_jit}) {
        $html .= qq{<link rel="stylesheet" type="text/css" href="js/jit/$css.css" />\n};
        $html .= qq{<script language="JavaScript" src="js/jit/jit.js"></script>\n};
    }

    $html .= <<EOD unless $opts->{skip_jquery};
    <script type="text/javascript" src="js/jquery-min.js"></script> 

    <script type="text/javascript" src="js/jquery-tablesorter-min.js"></script> 
    <link rel="stylesheet" type="text/css" href="js/style-tablesorter.css" />
    <script type="text/javascript">
    // when a column is first clicked on to sort it, use descending order
    // XXX doesn't seem to work (and not just because the tablesorter formatSortingOrder() is broken)
    \$.tablesorter.defaults.sortInitialOrder = "desc";
    // add parser through the tablesorter addParser method 
    \$.tablesorter.addParser({
        id: 'fmt_time',   // name of this parser
        is: function(s) { 
            return false; // return false so this parser is not auto detected 
        }, 
        format: function(orig) { // format data for normalization 
            // console.log(orig);
            val = orig.replace(/ns/,'');
            if (val != orig) { return val / (1000*1000*1000); } 
            val = orig.replace(/┬Ás/,''); /* XXX use &micro; ? */
            if (val != orig) { return val / (1000*1000); } 
            var val = orig.replace(/ms/,'');
            if (val != orig) { return val / (1000); }
            var val = orig.replace(/s/,'');
            if (val != orig) { return val; }
            if (orig == '0') { return orig; } 
            console.log('no match for fmt_time of '.concat(orig));
            return orig;
        },
        type: 'numeric' // set type, either numeric or text 
    }); 
    </script> 
EOD
    $html .= $opts->{head_epilogue} if $opts->{head_epilogue};

    $html .= <<EOD;
</head>
EOD

    return $html;
}

sub get_page_header {
    my %args = @_;
    my ($profile, $head1, $head2, $right1, $right2, $skip_link_to_index) = (
        $args{profile}, $args{title},     $args{subtitle},
        $args{title2},  $args{subtitle2}, $args{skip_link_to_index}
    );

    $head2  ||= qq{<br />For ${ \($profile->{attribute}{application}) }};
    $right1 ||= "&nbsp;";
    $right2 ||= "Run on ${ \scalar localtime($profile->{attribute}{basetime}) }<br />Reported on "
        . localtime(time);

    my $back_link = q//;
    unless ($skip_link_to_index) {
        $back_link = qq{<div class="header_back">
            <a href="index.html">&larr; Index</a>
        </div>};
    }

    my @body_attribs;
    push @body_attribs, qq{onload="$args{body_onload}"} if $args{body_onload};
    my $body_attribs = join "; ", @body_attribs;

    return qq{<body $body_attribs> 
<div class="header" style="position: relative; overflow-x: hidden; overflow-y: hidden; z-index: 0; ">
$back_link
<div class="headerForeground" style="float: left">
    <span class="siteTitle">$head1</span>
    <span class="siteSubtitle">$head2</span>
</div>
<div class="headerForeground" style="float: right; text-align: right">
    <span class="siteTitle">$right1</span>
    <span class="siteSubtitle">$right2</span>
</div>
<div style="position: absolute; left: 0px; top: 0%; width: 100%; height: 101%; z-index: -1; background-color: rgb(17, 136, 255); "></div>
<div style="position: absolute; left: 0px; top: 2%; width: 100%; height: 99%; z-index: -1; background-color: rgb(16, 134, 253); "></div>
<div style="position: absolute; left: 0px; top: 4%; width: 100%; height: 97%; z-index: -1; background-color: rgb(16, 133, 252); "></div>
<div style="position: absolute; left: 0px; top: 6%; width: 100%; height: 95%; z-index: -1; background-color: rgb(15, 131, 250); "></div>
<div style="position: absolute; left: 0px; top: 8%; width: 100%; height: 93%; z-index: -1; background-color: rgb(15, 130, 249); "></div>
<div style="position: absolute; left: 0px; top: 10%; width: 100%; height: 91%; z-index: -1; background-color: rgb(15, 129, 248); "></div>
<div style="position: absolute; left: 0px; top: 12%; width: 100%; height: 89%; z-index: -1; background-color: rgb(14, 127, 246); "></div>
<div style="position: absolute; left: 0px; top: 14%; width: 100%; height: 87%; z-index: -1; background-color: rgb(14, 126, 245); "></div>
<div style="position: absolute; left: 0px; top: 16%; width: 100%; height: 85%; z-index: -1; background-color: rgb(14, 125, 244); "></div>
<div style="position: absolute; left: 0px; top: 18%; width: 100%; height: 83%; z-index: -1; background-color: rgb(13, 123, 242); "></div>
<div style="position: absolute; left: 0px; top: 20%; width: 100%; height: 81%; z-index: -1; background-color: rgb(13, 122, 241); "></div>
<div style="position: absolute; left: 0px; top: 22%; width: 100%; height: 79%; z-index: -1; background-color: rgb(13, 121, 240); "></div>
<div style="position: absolute; left: 0px; top: 24%; width: 100%; height: 77%; z-index: -1; background-color: rgb(12, 119, 238); "></div>
<div style="position: absolute; left: 0px; top: 26%; width: 100%; height: 75%; z-index: -1; background-color: rgb(12, 118, 237); "></div>
<div style="position: absolute; left: 0px; top: 28%; width: 100%; height: 73%; z-index: -1; background-color: rgb(12, 116, 235); "></div>
<div style="position: absolute; left: 0px; top: 30%; width: 100%; height: 71%; z-index: -1; background-color: rgb(11, 115, 234); "></div>
<div style="position: absolute; left: 0px; top: 32%; width: 100%; height: 69%; z-index: -1; background-color: rgb(11, 114, 233); "></div>
<div style="position: absolute; left: 0px; top: 34%; width: 100%; height: 67%; z-index: -1; background-color: rgb(11, 112, 231); "></div>
<div style="position: absolute; left: 0px; top: 36%; width: 100%; height: 65%; z-index: -1; background-color: rgb(10, 111, 230); "></div>
<div style="position: absolute; left: 0px; top: 38%; width: 100%; height: 63%; z-index: -1; background-color: rgb(10, 110, 229); "></div>
<div style="position: absolute; left: 0px; top: 40%; width: 100%; height: 61%; z-index: -1; background-color: rgb(10, 108, 227); "></div>
<div style="position: absolute; left: 0px; top: 42%; width: 100%; height: 59%; z-index: -1; background-color: rgb(9, 107, 226); "></div>
<div style="position: absolute; left: 0px; top: 44%; width: 100%; height: 57%; z-index: -1; background-color: rgb(9, 106, 225); "></div>
<div style="position: absolute; left: 0px; top: 46%; width: 100%; height: 55%; z-index: -1; background-color: rgb(9, 104, 223); "></div>
<div style="position: absolute; left: 0px; top: 48%; width: 100%; height: 53%; z-index: -1; background-color: rgb(8, 103, 222); "></div>
<div style="position: absolute; left: 0px; top: 50%; width: 100%; height: 51%; z-index: -1; background-color: rgb(8, 102, 221); "></div>
<div style="position: absolute; left: 0px; top: 52%; width: 100%; height: 49%; z-index: -1; background-color: rgb(8, 100, 219); "></div>
<div style="position: absolute; left: 0px; top: 54%; width: 100%; height: 47%; z-index: -1; background-color: rgb(7, 99, 218); "></div>
<div style="position: absolute; left: 0px; top: 56%; width: 100%; height: 45%; z-index: -1; background-color: rgb(7, 97, 216); "></div>
<div style="position: absolute; left: 0px; top: 58%; width: 100%; height: 43%; z-index: -1; background-color: rgb(7, 96, 215); "></div>
<div style="position: absolute; left: 0px; top: 60%; width: 100%; height: 41%; z-index: -1; background-color: rgb(6, 95, 214); "></div>
<div style="position: absolute; left: 0px; top: 62%; width: 100%; height: 39%; z-index: -1; background-color: rgb(6, 93, 212); "></div>
<div style="position: absolute; left: 0px; top: 64%; width: 100%; height: 37%; z-index: -1; background-color: rgb(6, 92, 211); "></div>
<div style="position: absolute; left: 0px; top: 66%; width: 100%; height: 35%; z-index: -1; background-color: rgb(5, 91, 210); "></div>
<div style="position: absolute; left: 0px; top: 68%; width: 100%; height: 33%; z-index: -1; background-color: rgb(5, 89, 208); "></div>
<div style="position: absolute; left: 0px; top: 70%; width: 100%; height: 31%; z-index: -1; background-color: rgb(5, 88, 207); "></div>
<div style="position: absolute; left: 0px; top: 72%; width: 100%; height: 29%; z-index: -1; background-color: rgb(4, 87, 206); "></div>
<div style="position: absolute; left: 0px; top: 74%; width: 100%; height: 27%; z-index: -1; background-color: rgb(4, 85, 204); "></div>
<div style="position: absolute; left: 0px; top: 76%; width: 100%; height: 25%; z-index: -1; background-color: rgb(4, 84, 203); "></div>
<div style="position: absolute; left: 0px; top: 78%; width: 100%; height: 23%; z-index: -1; background-color: rgb(3, 82, 201); "></div>
<div style="position: absolute; left: 0px; top: 80%; width: 100%; height: 21%; z-index: -1; background-color: rgb(3, 81, 200); "></div>
<div style="position: absolute; left: 0px; top: 82%; width: 100%; height: 19%; z-index: -1; background-color: rgb(3, 80, 199); "></div>
<div style="position: absolute; left: 0px; top: 84%; width: 100%; height: 17%; z-index: -1; background-color: rgb(2, 78, 197); "></div>
<div style="position: absolute; left: 0px; top: 86%; width: 100%; height: 15%; z-index: -1; background-color: rgb(2, 77, 196); "></div>
<div style="position: absolute; left: 0px; top: 88%; width: 100%; height: 13%; z-index: -1; background-color: rgb(2, 76, 195); "></div>
<div style="position: absolute; left: 0px; top: 90%; width: 100%; height: 11%; z-index: -1; background-color: rgb(1, 74, 193); "></div>
<div style="position: absolute; left: 0px; top: 92%; width: 100%; height: 9%; z-index: -1; background-color: rgb(1, 73, 192); "></div>
<div style="position: absolute; left: 0px; top: 94%; width: 100%; height: 7%; z-index: -1; background-color: rgb(1, 72, 191); "></div>
<div style="position: absolute; left: 0px; top: 96%; width: 100%; height: 5%; z-index: -1; background-color: rgb(0, 70, 189); "></div>
<div style="position: absolute; left: 0px; top: 98%; width: 100%; height: 3%; z-index: -1; background-color: rgb(0, 69, 188); "></div>
<div style="position: absolute; left: 0px; top: 100%; width: 100%; height: 1%; z-index: -1; background-color: rgb(0, 68, 187); "></div>
</div>\n};
}

sub get_css {
    return <<'EOD';
/* Stylesheet for Devel::NYTProf::Reader HTML reports */

/* You may modify this file to alter the appearance of your coverage
 * reports. If you do, you should probably flag it read-only to prevent
 * future runs from overwriting it.
 */

/* Note: default values use the color-safe web palette. */
a:visited { color: #6d00E6; }
a:hover { color: red; }

body { font-family: sans-serif; margin: 0px; }
.body_content { margin: 8px; }

.header { font-family: sans-serif; padding-left: 0.5em; padding-right: 0.5em; }
.headerForeground { color: white; padding: 10px; padding-top: 50px; }
.siteTitle { font-size: 2em; }
.siteSubTitle { font-size: 1.2em; }

.header_back { 
    position: absolute; 
    padding: 10px;
}
.header_back > a:link,
.header_back > a:visited {
    color: white; 
    text-decoration: none;
    font-size: 0.75em;
}

.jump_to_file {
    margin-top: 20px;
}

.footer,
.footer > a:link,
.footer > a:visited {
    color: #cccccc;
}
.footer { margin: 30px; }

table { 
    border-collapse: collapse; 
    border-spacing: 0px; 
    margin-top: 20px;
}
tr { 
    text-align : center;
    vertical-align: top; 
}
th,.h {
    background-color: #dddddd;
    border: solid 1px #666666;
    padding: 0em 0.4em 0em 0.4em;
    font-size:0.8em;
}
td { 
    border: solid 1px #cccccc; 
    padding: 0em 0.4em 0em 0.4em;
}
caption {
    background-color: #dddddd;
    text-align: left;
    white-space: pre;
    padding: 0.4em;
}

.table_footer { color: gray; }
.table_footer > a:link,
.table_footer > a:visited { color: gray; }
.table_footer > a:hover   { color: red; }

.index { text-align: left; }

.mode_btn_selected {
  font-style: italic;
}

/* subroutine dispatch table */
.sub_name {
  text-align: left;
  font-family: monospace;
  white-space: pre;
  color: gray;
}

/* source code */
th.left_indent_header {
  padding-left: 15px;
  text-align: left;
}

pre,.s {
    text-align: left;
    font-family: monospace;
    white-space: pre;
}
/* plain number */
.n { text-align: right }

/* Classes for color-coding profiling information:
 *   c0  : code not hit
 *   c1  : coverage >= 75%
 *   c2  : coverage >= 90%
 *   c3  : path covered or coverage = 100%
 */
.c0, .c1, .c2, .c3 { text-align: right; }
.c0 { background-color: #ffb3b3; }  /* red */
.c1 { background-color: #ffd9b4; }  /* orange */
.c2 { background-color: #ffffB4; }  /* yellow */
.c3 { background-color: #B4ffB4; }  /* green */

/* warnings */
.warn {
    background-color: #FFFFAA;
    border: 0;
    width: 96%;
    text-align: center;
    padding: 5px 0;
}
.warn_title {
    background-color: #FFFFAA;
    border: 0;
    color: red;
    width: 96%;
    font-size: 2em;
    text-align: center;
    padding: 5px 0;
}

/* summary of calls into and out of a sub */
.calls {
  display: block;
  color: gray;
  padding-top: 5px;
  padding-bottom: 5px;
  text-decoration: none;
}
.calls:hover {
    background-color: #e8e8e8;
    color: black;
}
.calls       a       { color: gray;  text-decoration: none; }
.calls:hover a       { color: black; text-decoration: underline; }
.calls:hover a:hover { color: red; }
/* give a little headroom to the summary of calls into a sub */
.calls .calls_in { margin-top: 5px; }

.vis_header {
    text-align:center;
    font-style: italic;
    padding-top: 5px; color: gray;
}

EOD
}

__END__

=head1 NAME

nytprofhtml - Generate reports from Devel::NYTProf data

=head1 SYNOPSIS

Typical usage:

 $ perl -d:NYTProf some_perl_app.pl
 $ nytprofhtml --open

Options synopsis:

 $ nytprofhtml [-h] [-d] [-o <output directory>] [-f <input file>] [--open]

=head1 DESCRIPTION

Devel::NYTProf is a powerful feature-rich perl source code profiler.
See L<Devel::NYTProf> for details.

C<nytprofhtml> generates a set of html reports from the data collected by
L<Devel::NYTProf>.

The reports include dynamic runtime analysis wherein each line and each file
is analyzed based on the performance of the other lines and files.  As a
result, you can quickly find the slowest module and the slowest line in a 
module.  Slowness is measured in three ways: total calls, total time and
average time per call.

Coloring is based on absolute deviations from the median.
See L<http://en.wikipedia.org/wiki/Median_absolute_deviation> for more details.

That might sound complicated, but in reality you can just run the command and
enjoy your report!

=head1 COMMAND-LINE OPTIONS

=over 4

=item -f, --file <filename>

Specifies the location of the file generated by L<Devel::NYTProf>.
Default: ./nytprof.out

=item -o, --out <dir>

The directory in which to place the generated report files. Default: ./nytprof/

=item -d, --delete

Purge any existing contents of the report output directory.

=item -l, --lib <dir>

Add a path to the beginning of @INC to help nytprofhtml find the source files
used by the code. Should not be needed in practice.

=item --open

Make your web browser visit the report after it has been generated.

=item -h, --help

Print the help message

=back

=head1 SAMPLE OUTPUT

You can see a complete report for a large application (over 200 files and 2000 subroutines) at
L<https://www.me.com/ix/tim.bunce/Public/perl/nytprof/nytprof-perlcritic-demo/index.html>

The report was generated by profiling L<perlcritic> 1.106 checking it's own source code
using perl 5.12.1.

=head1 DIAGNOSTICS

=head2 "Unable to open '... (autosplit into ...)'"

The profiled application executed code in a module that used L<AutoLoader> to
load the code from a separate .al file.  NYTProf automatically recognises this
situation and tries to determine the 'parent' module file so it can associate
the profile data with it.  In order to do that the parent module file must
already be 'known' to NYTProf, typically by already having some code profiled.

You're only likely to see this warning if you're using the C<start> option to
start profiling after compile-time. The effect is that times spent in
autoloaded subs won't be associated with the parent module file and you won't
get annotated reports for them.

You can avoid this by using the default C<start=begin> option, or by ensuring
you execute some non-autoloaded code in the parent module, while the profiler is
running, before an autoloaded sub is called.


=head1 HISTORY

A bit of history and a shameless plug...

NYTProf stands for 'New York Times Profiler'. Indeed, this module was initially
developed from Devel::FastProf by The New York Times Co. to help our developers
quickly identify bottlenecks in large Perl applications.  The NY Times loves
Perl and we hope the community will benefit from our work as much as we have
from theirs.

Please visit L<http://open.nytimes.com>, our open source blog to see what we
are up to, L<http://code.nytimes.com> to see some of our open projects and then
check out L<http://nytimes.com> for the latest news!

=head2 Background

Subroutine-level profilers:

  Devel::DProf        | 1995-10-31 | ILYAZ
  Devel::AutoProfiler | 2002-04-07 | GSLONDON
  Devel::Profiler     | 2002-05-20 | SAMTREGAR
  Devel::Profile      | 2003-04-13 | JAW
  Devel::DProfLB      | 2006-05-11 | JAW
  Devel::WxProf       | 2008-04-14 | MKUTTER

Statement-level profilers:

  Devel::SmallProf    | 1997-07-30 | ASHTED
  Devel::FastProf     | 2005-09-20 | SALVA
  Devel::NYTProf      | 2008-03-04 | AKAPLAN
  Devel::Profit       | 2008-05-19 | LBROCARD

Devel::NYTProf is a (now distant) fork of Devel::FastProf, which was itself an
evolution of Devel::SmallProf.

Adam Kaplan took Devel::FastProf and added html report generation (based on
Devel::Cover) and a test suite - a tricky thing to do for a profiler.
Meanwhile Tim Bunce had been extending Devel::FastProf to add novel
per-sub and per-block timing, plus subroutine caller tracking.

When Devel::NYTProf was released Tim switched to working on Devel::NYTProf
because the html report would be a good way to show the extra profile data, and
the test suite made development much easier and safer.

Then he went a little crazy and added a slew of new features, in addition to
per-sub and per-block timing and subroutine caller tracking. These included the
'opcode interception' method of profiling, ultra-fast and robust inclusive
subroutine timing, doubling performance, plus major changes to html reporting
to display all the extra profile call and timing data in richly annotated and
cross-linked reports.

Steve Peters came on board along the way with patches for portability and to
keep NYTProf working with the latest development perl versions.

Adam's work is sponsored by The New York Times Co. L<http://open.nytimes.com>.
Tim's work was partly sponsored by Shopzilla. L<http://www.shopzilla.com>.

=head1 SEE ALSO

Mailing list and discussion at L<http://groups.google.com/group/develnytprof-dev>

Public SVN Repository and hacking instructions at L<http://code.google.com/p/perl-devel-nytprof/>

L<Devel::NYTProf>,
L<Devel::NYTProf::Reader>,
L<nytprofcsv>

=head1 AUTHOR

B<Adam Kaplan>, C<< <akaplan at nytimes.com> >>.
B<Tim Bunce>, L<http://www.tim.bunce.name> and L<http://blog.timbunce.org>.
B<Steve Peters>, C<< <steve at fisharerojo.org> >>.

=head1 COPYRIGHT AND LICENSE

This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.8.8 or,
at your option, any later version of Perl 5 you may have available.

=cut

# vim:ts=8:sw=4:expandtab