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annotate ovz_statshow.pl @ 5:464dea07deb8 default tip

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Add vzps replacements.
author Peter Gervai <grin@grin.hu>
date Wed, 07 May 2014 16:23:45 +0200
parents 4cd907a693d1
children
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efb595e3b0a2 ovz_statshow v0.0
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1 #!/usr/bin/perl
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2 #$Id$
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3 #(C)Peter Gervai, 2009
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4 # email: grin.grin.hu
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5 #
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6 # Released under GPL v2 or later and CC-BY-SA-3.0
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7 #
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8 # Lists openvz VE usage statistics.
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9 #
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10
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11 use strict;
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12 use warnings;
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13
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14 use IO::File;
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16
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17 my $f_stat = "/proc/vz/vestat";
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18 my $stat_ver = "2.2";
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19 # jiffie per second ( zgrep ^CONFIG_HZ /proc/config.gz )
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20 my $jiffies = 100;
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22
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23 my @fields = (1,2,3,4,5,7,8);
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24 my @fieldname = qw( user nice sys up idle up_c used_c );
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25 my (%ve, %ve1);
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26
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27 my $cpu_mhz = qx( egrep '^cpu MHz' /proc/cpuinfo | head -n1 | awk '{print \$4}' );
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28 chomp $cpu_mhz;
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29 $cpu_mhz = $cpu_mhz * 1_048_576;
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30 print "Running on $cpu_mhz MHz CPU(s)\n";
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31
0
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33 while(1) {
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34 my $f = new IO::File "< $f_stat" or die $!;
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35
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36 my $fdata;
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37 # have to read one chunk at once :-/ length is arbitrary
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38 sysread $f, $fdata, 65535;
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39 $f->close;
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40
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41 my @vestat = split /\n/, $fdata;
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42
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43 if( $vestat[0] !~ /Version: $stat_ver/ ) {
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44 die "Unknown file version $vestat[0], required $stat_ver";
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45 }
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46 my $debug_proc = "";
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47 for my $i ( 2 .. $#vestat ) {
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48 my $l = $vestat[$i];
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49 #chomp $l;
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50 $l =~ s/^\s*(.*?)\s*$/$1/;
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51 #print "##$l##\n";
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52 $debug_proc .= "$l\n";
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53 my @d = split /\s+/, $l;
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54 # 0veid, 1user, 2nice, 3systm, 4uptime, <- jiffy
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55 # 5idle, (6strv), 7uptime, 8used, (9maxlat, 10totlat, 11numched) <- cycles
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56 $ve{$d[0]} = [ @d[0..11] ];
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57 }
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58
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59 for my $veid ( sort {$a<=>$b} keys %ve ) {
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60 if( defined( $ve1{$veid} ) ) {
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61 printf "%03d:", $veid;
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62 for my $i ( 0..$#fields ) {
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63 my $field = $fields[$i];
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64 #print "[$field,", $ve{$veid}, ",", $ve1{$veid} ,",", $ve{$veid}->[$field],",", $ve1{$veid}->[$field], "] ";
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65 my $val = $ve{$veid}->[$field] - $ve1{$veid}->[$field];
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66 printf "%6s(%3d)=", $fieldname[$i], $field;
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67
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68 if( $val < 0 ) {
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69 # debug
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70 print "NEGATIVE VALUE!!\n";
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71 print "\n#", $ve{$veid}->[$field], ' ', $ve1{$veid}->[$field], "#$_#\n";
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72 print "$debug_proc\n";
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73 }
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74
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75 if( $field < 5 ) {
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76 printf "%4d", &jiffie2ms( $val );
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77 } else {
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78 printf "%4d", &cycle2ms( $val );
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79 }
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80 print "; ";
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81 if( $field == 7 ) {
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82 printf "<%4d> ", &cycle2ms( $val - ($ve{$veid}->[5] - $ve1{$veid}->[5]) );
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83 }
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84 }
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85 print "\n";
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86 }
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87 $ve1{$veid} = $ve{$veid};
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88 }
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89 print "\n";
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90 sleep(1);
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91 }
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93
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94 sub cycle2ms ($) {
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95 return int( (shift) / $cpu_mhz * 1000 );
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96 }
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98
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99 sub jiffie2ms ($) {
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100 return int( (shift) / $jiffies * 1000 );
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101 }
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102