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
|
#!/usr/bin/perl
# Print numa statistics for all nodes
# Copyright (C) 2003,2004 Andi Kleen, SuSE Labs.
#
# numastat is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation; version
# 2.
#
# numastat 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
# General Public License for more details.
# You should find a copy of v2 of the GNU General Public License somewhere
# on your Linux system; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#
# Example: NUMASTAT_WIDTH=80 watch -n1 numastat
#
# output width
$WIDTH=80;
if (defined($ENV{'NUMASTAT_WIDTH'})) {
$WIDTH=$ENV{'NUMASTAT_WIDTH'};
} else {
use POSIX;
if (POSIX::isatty(fileno(STDOUT))) {
if (open(R, "resize |")) {
while (<R>) {
$WIDTH=$1 if /COLUMNS=(\d+)/;
}
close R;
}
} else {
# don't split it up for easier parsing
$WIDTH=10000000;
}
}
$WIDTH = 32 if $WIDTH < 32;
if (! -d "/sys/devices/system/node" ) {
print STDERR "sysfs not mounted or system not NUMA aware\n";
exit 1;
}
%stat = ();
$title = "";
$mode = 0;
opendir(NODES, "/sys/devices/system/node") || exit 1;
foreach $nd (readdir(NODES)) {
next unless $nd =~ /node(\d+)/;
# On newer kernels, readdir may enumerate the 'node(\d+) subdirs
# in opposite order from older kernels--e.g., node{0,1,2,...}
# as opposed to node{N,N-1,N-2,...}. Accomodate this by
# switching to new mode so that the stats get emitted in
# the same order.
#print "readdir(NODES) returns $nd\n";
if (!$title && $nd =~ /node0/) {
$mode = 1;
}
open(STAT, "/sys/devices/system/node/$nd/numastat") ||
die "cannot open $nd: $!\n";
if (! $mode) {
$title = sprintf("%16s",$nd) . $title;
} else {
$title = $title . sprintf("%16s",$nd);
}
@fields = ();
while (<STAT>) {
($name, $val) = split;
if (! $mode) {
$stat{$name} = sprintf("%16u", $val) . $stat{$name};
} else {
$stat{$name} = $stat{$name} . sprintf("%16u", $val);
}
push(@fields, $name);
}
close STAT;
}
closedir NODES;
$numfields = int(($WIDTH - 16) / 16);
$l = 16 * $numfields;
for ($i = 0; $i < length($title); $i += $l) {
print "\n" if $i > 0;
printf "%16s%s\n","",substr($title,$i,$l);
foreach (@fields) {
printf "%-16s%s\n",$_,substr($stat{$_},$i,$l);
}
}
|
