#!/usr/bin/perl
###############################################################################
# vzstats.pl
#
# this script reads /proc/user_beancounters on openvz HNs and VEs and displays
# the values in human-readable format (megabytes/kilobytes).
#
# The script can be distributed freely for everybody who finds it usable.
#
# Christian Anton <mail |_at_| christiananton.de> 2008-09-18
open(BEANS,"/proc/user_beancounters");
chomp ($arch = `uname -m`);
sub check_maxulong {
my $number = shift;
if ($arch eq "x86_64") {
if ($number == 9223372036854775807) {
return 1;
} else {
return undef;
}
} else {
if ($number == 2147483647) {
return 1;
} else {
return undef;
}
}
}
sub recalc_bytes {
my $bytes = shift;
if (defined(&check_maxulong($bytes))) { return "MAX_ULONG"; }
my $kbytes = $bytes / 1024;
my $ret;
# if over 1mb, show mb values
if ($kbytes > 1024) {
my $mbytes = $kbytes / 1024;
$ret = sprintf("%.2f", $mbytes) . " mb";
return $ret;
} else {
$ret = sprintf("%.2f", $kbytes) . " kb";
return $ret;
}
}
sub recalc_pages {
my $pages = shift;
if ($pages == 0) { return "0"; }
if (defined(&check_maxulong($pages))) { return "MAX_ULONG"; }
my $kbytes = $pages * 4;
my $ret;
if ($kbytes > 1024) {
my $mbytes = $kbytes / 1024;
$ret = sprintf("%.2f", $mbytes) . " mb";
return $ret;
} else {
$ret = sprintf("%.2f", $kbytes) . " kb";
return $ret;
}
}
sub recalc_nothing {
my $number = shift;
if (defined(&check_maxulong($number))) { return "MAX_ULONG"; }
return $number;
}
sub printline {
my $mode = shift; # 0=normal, 1=bytes, 2=pages
my $ident = shift;
my $held = shift;
my $maxheld = shift;
my $barrier = shift;
my $limit = shift;
my $failcnt = shift;
if ($mode == 0) {
printf ("%-15s",$ident);
printf ("%18s",&recalc_nothing($held));
printf ("%21s",&recalc_nothing($maxheld));
printf ("%21s",&recalc_nothing($barrier));
printf ("%21s",&recalc_nothing($limit));
printf ("%21s",$failcnt);
print "\n";
} elsif ($mode == 1) {
printf ("%-15s",$ident);
printf ("%18s",&recalc_bytes($held));
printf ("%21s",&recalc_bytes($maxheld));
printf ("%21s",&recalc_bytes($barrier));
printf ("%21s",&recalc_bytes($limit));
printf ("%21s",$failcnt);
print "\n";
} elsif ($mode == 2) {
printf ("%-15s",$ident);
printf ("%18s",&recalc_pages($held));
printf ("%21s",&recalc_pages($maxheld));
printf ("%21s",&recalc_pages($barrier));
printf ("%21s",&recalc_pages($limit));
printf ("%21s",$failcnt);
print "\n";
}
}
sub work_line {
my $line = shift;
my $ident = $line;
my $held = $line;
my $maxheld = $line;
my $barrier = $line;
my $limit = $line;
my $failcnt = $line;
$ident =~ s/^\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/$1/;
$held =~ s/^\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/$2/;
$maxheld =~ s/^\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/$3/;
$barrier =~ s/^\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/$4/;
$limit =~ s/^\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/$5/;
$failcnt =~ s/^\s+(\w+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)$/$6/;
# 0=normal, 1=bytes, 2=pages
if ($ident eq "dummy") {
# do nothing, skip this line
} elsif ($ident =~ /pages/) {
&printline(2,$ident,$held,$maxheld,$barrier,$limit,$failcnt);
} elsif ($ident =~ /^num/) {
&printline(0,$ident,$held,$maxheld,$barrier,$limit,$failcnt);
} else {
&printline(1,$ident,$held,$maxheld,$barrier,$limit,$failcnt);
}
}
sub print_header {
my $uid = shift;
print "#####################################################################################################################\n";
print "BEANS FOR UID $uid\n";
print "resource held maxheld barrier limit failcnt\n";
}
# now eat your beans baby
while (<BEANS>) {
chomp($line = $_);
# skip processing of headline
if ($line =~ /^\s+uid/) {
# do nothing, skip this
} elsif ($line =~ /^Ver/) {
# do nothing, skip this
} elsif ($line =~ /^\s+\d+:\s+kmem/) {
$uid = $line;
$line =~ s/^(\s+)(\d+):/$1/;
$uid =~ s/^(\s+)(\d+):.*$/$2/;
&print_header($uid);
&work_line($line);
} else {
&work_line($line);
}
}
close(BEANS);
