File: bench-count-distinct.sh

package info (click to toggle)
mysql-5.1 5.1.73-1%2Bdeb6u1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze-lts
  • size: 197,132 kB
  • ctags: 93,377
  • sloc: cpp: 579,952; ansic: 429,462; perl: 49,053; sh: 21,692; pascal: 21,272; yacc: 12,801; makefile: 4,545; xml: 4,114; sql: 3,297; lex: 1,265; asm: 1,023
file content (260 lines) | stat: -rw-r--r-- 7,366 bytes parent folder | download | duplicates (11)
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
#!/usr/bin/perl
# Copyright (c) 2001, 2003, 2006 MySQL AB, 2009 Sun Microsystems, Inc.
# Use is subject to license terms.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Library General Public
# License as published by the Free Software Foundation; version 2
# of the License.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Library General Public License for more details.
#
# You should have received a copy of the GNU Library General Public
# License along with this library; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301, USA
#
# Test of selecting on keys that consist of many parts
#
##################### Standard benchmark inits ##############################

use Cwd;
use DBI;
use Getopt::Long;
use Benchmark;

$opt_loop_count=10000;
$opt_medium_loop_count=200;
$opt_small_loop_count=10;
$opt_regions=6;
$opt_groups=100;

$pwd = cwd(); $pwd = "." if ($pwd eq '');
require "$pwd/bench-init.pl" || die "Can't read Configuration file: $!\n";

$columns=min($limits->{'max_columns'},500,($limits->{'query_size'}-50)/24,
	     $limits->{'max_conditions'}/2-3);

if ($opt_small_test)
{
  $opt_loop_count/=10;
  $opt_medium_loop_count/=10;
  $opt_small_loop_count/=10;
  $opt_groups/=10;
}

print "Testing the speed of selecting on keys that consist of many parts\n";
print "The test-table has $opt_loop_count rows and the test is done with $columns ranges.\n\n";

####
####  Connect and start timeing
####

$dbh = $server->connect();
$start_time=new Benchmark;

####
#### Create needed tables
####

goto select_test if ($opt_skip_create);

print "Creating table\n";
$dbh->do("drop table bench1" . $server->{'drop_attr'});

do_many($dbh,$server->create("bench1",
			     ["region char(1) NOT NULL",
			      "idn integer(6) NOT NULL",
			      "rev_idn integer(6) NOT NULL",
			      "grp integer(6) NOT NULL"],
			     ["primary key (region,idn)",
			      "unique (region,rev_idn)",
			      "unique (region,grp,idn)"]));
if ($opt_lock_tables)
{
  do_query($dbh,"LOCK TABLES bench1 WRITE");
}

if ($opt_fast && defined($server->{vacuum}))
{
  $server->vacuum(1,\$dbh);
}

####
#### Insert $opt_loop_count records with
#### region:	"A" -> "E"
#### idn: 	0 -> count
#### rev_idn:	count -> 0,
#### grp:	distributed values 0 - > count/100
####

print "Inserting $opt_loop_count rows\n";

$loop_time=new Benchmark;
$query="insert into bench1 values (";
$half_done=$opt_loop_count/2;
for ($id=0,$rev_id=$opt_loop_count-1 ; $id < $opt_loop_count ; $id++,$rev_id--)
{
  $grp=$id*3 % $opt_groups;
  $region=chr(65+$id%$opt_regions);
  do_query($dbh,"$query'$region',$id,$rev_id,$grp)");
  if ($id == $half_done)
  {				# Test with different insert
    $query="insert into bench1 (region,idn,rev_idn,grp) values (";
  }
}

$end_time=new Benchmark;
print "Time to insert ($opt_loop_count): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n\n";

if ($opt_lock_tables)
{
  do_query($dbh,"UNLOCK TABLES");
}

if ($opt_fast && defined($server->{vacuum}))
{
  $server->vacuum(0,\$dbh,"bench1");
}

if ($opt_lock_tables)
{
  do_query($dbh,"LOCK TABLES bench1 WRITE");
}

####
#### Do some selects on the table
####

select_test:



if ($limits->{'group_distinct_functions'})
{
  print "Testing count(distinct) on the table\n";
  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select count(distinct region) from bench1");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $opt_medium_loop_count));
  }
  print_time($estimated);
  print " for count_distinct_key_prefix ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";

  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select count(distinct grp) from bench1");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $opt_medium_loop_count));
  }
  print_time($estimated);
  print " for count_distinct ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";

  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select count(distinct grp),count(distinct rev_idn) from bench1");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $opt_medium_loop_count));
  }
  print_time($estimated);
  print " for count_distinct_2 ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";

  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select region,count(distinct idn) from bench1 group by region");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $opt_medium_loop_count));
  }
  print_time($estimated);
  print " for count_distinct_group_on_key ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";

  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select grp,count(distinct idn) from bench1 group by grp");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $opt_medium_loop_count));
  }
  print_time($estimated);
  print " for count_distinct_group_on_key_parts ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";

  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  for ($i=0 ; $i < $opt_medium_loop_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select grp,count(distinct rev_idn) from bench1 group by grp");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $opt_medium_loop_count));
  }
  print_time($estimated);
  print " for count_distinct_group ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";

  $loop_time=new Benchmark;
  $rows=$estimated=$count=0;
  $test_count=$opt_medium_loop_count/10;
  for ($i=0 ; $i < $test_count ; $i++)
  {
    $count++;
    $rows+=fetch_all_rows($dbh,"select idn,count(distinct region) from bench1 group by idn");
    $end_time=new Benchmark;
    last if ($estimated=predict_query_time($loop_time,$end_time,\$count,$i+1,
					   $test_count));
  }
  print_time($estimated);
  print " for count_distinct_big ($count:$rows): " .
    timestr(timediff($end_time, $loop_time),"all") . "\n";
}

####
#### End of benchmark
####

if ($opt_lock_tables)
{
  do_query($dbh,"UNLOCK TABLES");
}
if (!$opt_skip_delete)
{
  do_query($dbh,"drop table bench1" . $server->{'drop_attr'});
}

if ($opt_fast && defined($server->{vacuum}))
{
  $server->vacuum(0,\$dbh);
}

$dbh->disconnect;				# close connection

end_benchmark($start_time);