use strict;
use warnings;
+
+use Cwd qw();
+use IO::File;
+use List::Util qw(sum);
use POSIX;
+use Socket qw(PF_INET PF_INET6 SOCK_DGRAM IPPROTO_IP);
use Time::HiRes qw (gettimeofday);
-use IO::File;
-use PVE::Tools;
-use Cwd qw();
-use Socket qw(PF_INET PF_INET6 SOCK_DGRAM IPPROTO_IP);
+use PVE::Tools;
use constant IFF_UP => 1;
use constant IFNAMSIZ => 16;
my $fh = IO::File->new ($fn, "r");
return $res if !$fh;
+ my $cpuid = 0;
my $idhash = {};
my $count = 0;
while (defined(my $line = <$fh>)) {
} elsif ($line =~ m/^flags\s*:\s*(.*)$/) {
$res->{flags} = $1 if !length $res->{flags};
} elsif ($line =~ m/^physical id\s*:\s*(\d+)\s*$/i) {
- $idhash->{$1} = 1;
+ $cpuid = $1;
+ $idhash->{$1} = 1 if not defined($idhash->{$1});
+ } elsif ($line =~ m/^cpu cores\s*:\s*(\d+)\s*$/i) {
+ $idhash->{$cpuid} = $1 if defined($idhash->{$cpuid});
}
}
$res->{sockets} = scalar(keys %$idhash) || 1;
+ $res->{cores} = sum(values %$idhash) || 1;
+
$res->{cpus} = $count;
$fh->close;
return (0, 0);
}
+sub kernel_version {
+ my $line = PVE::Tools::file_read_firstline("/proc/version");
+
+ if ($line && $line =~ m|^Linux\sversion\s((\d+(?:\.\d+)+)-?(\S+)?)|) {
+ my ($fullversion, $version_numbers, $extra) = ($1, $2, $3);
+
+ # variable names are the one from the Linux kernel Makefile
+ my ($version, $patchlevel, $sublevel) = split(/\./, $version_numbers);
+
+ return wantarray
+ ? (int($version), int($patchlevel), int($sublevel), $extra, $fullversion)
+ : $fullversion;
+ }
+
+ return (0, 0, 0, '', '');
+}
+
+# Check if the kernel is at least $major.$minor. Return either just a boolean,
+# or a boolean and the kernel version's major.minor string from /proc/version
+sub check_kernel_release {
+ my ($major, $minor) = @_;
+
+ my ($k_major, $k_minor) = kernel_version();
+
+ my $ok;
+ if (defined($minor)) {
+ $ok = $k_major > $major || ($k_major == $major && $k_minor >= $minor);
+ } else {
+ $ok = $k_major >= $major;
+ }
+
+ return wantarray ? ($ok, "$k_major.$k_minor") : $ok;
+}
+
sub read_loadavg {
my $line = PVE::Tools::file_read_firstline('/proc/loadavg');
return wantarray ? (0, 0, 0) : 0;
}
+sub parse_pressure {
+ my ($path) = @_;
+
+ my $res = {};
+ my $v = qr/\d+\.\d+/;
+ my $fh = IO::File->new($path, "r") or return undef;
+ while (defined (my $line = <$fh>)) {
+ if ($line =~ /^(some|full)\s+avg10\=($v)\s+avg60\=($v)\s+avg300\=($v)\s+total\=(\d+)/) {
+ $res->{$1}->{avg10} = $2;
+ $res->{$1}->{avg60} = $3;
+ $res->{$1}->{avg300} = $4;
+ $res->{$1}->{total} = $4;
+ }
+ }
+ $fh->close;
+ return $res;
+}
+
+sub read_pressure {
+ my $res = {};
+ foreach my $type (qw(cpu memory io)) {
+ my $stats = parse_pressure("/proc/pressure/$type");
+ $res->{$type} = $stats if $stats;
+ }
+ return $res;
+}
+
my $last_proc_stat;
sub read_proc_stat {
- my $res = { user => 0, nice => 0, system => 0, idle => 0 , sum => 0};
+ my $res = { user => 0, nice => 0, system => 0, idle => 0 , iowait => 0, irq => 0, softirq => 0, steal => 0, guest => 0, guest_nice => 0, sum => 0};
my $cpucount = 0;
if (my $fh = IO::File->new ("/proc/stat", "r")) {
while (defined (my $line = <$fh>)) {
- if ($line =~ m|^cpu\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s|) {
- $res->{user} = $1;
- $res->{nice} = $2;
+ if ($line =~ m|^cpu\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)(?:\s+(\d+)\s+(\d+))?|) {
+ $res->{user} = $1 - ($9 // 0);
+ $res->{nice} = $2 - ($10 // 0);
$res->{system} = $3;
$res->{idle} = $4;
- $res->{used} = $1+$2+$3;
+ $res->{used} = $1+$2+$3+$6+$7+$8;
$res->{iowait} = $5;
+ $res->{irq} = $6;
+ $res->{softirq} = $7;
+ $res->{steal} = $8;
+ $res->{guest} = $9 // 0;
+ $res->{guest_nice} = $10 // 0;
} elsif ($line =~ m|^cpu\d+\s|) {
$cpucount++;
}
my $ctime = gettimeofday; # floating point time in seconds
+ # the sum of all fields
+ $res->{total} = $res->{user}
+ + $res->{nice}
+ + $res->{system}
+ + $res->{iowait}
+ + $res->{irq}
+ + $res->{softirq}
+ + $res->{steal}
+ + $res->{idle}
+ + $res->{guest}
+ + $res->{guest_nice};
+
$res->{ctime} = $ctime;
$res->{cpu} = 0;
$res->{wait} = 0;
if ($diff > 1000) { # don't update too often
my $useddiff = $res->{used} - $last_proc_stat->{used};
$useddiff = $diff if $useddiff > $diff;
- $res->{cpu} = $useddiff/$diff;
+
+ my $totaldiff = $res->{total} - $last_proc_stat->{total};
+ $totaldiff = $diff if $totaldiff > $diff;
+
+ $res->{cpu} = $useddiff/$totaldiff;
+
my $waitdiff = $res->{iowait} - $last_proc_stat->{iowait};
$waitdiff = $diff if $waitdiff > $diff;
- $res->{wait} = $waitdiff/$diff;
+ $res->{wait} = $waitdiff/$totaldiff;
+
$last_proc_stat = $res;
} else {
$res->{cpu} = $last_proc_stat->{cpu};
if ($statstr && $statstr =~ m/^$pid \(.*\) (\S) (-?\d+) -?\d+ -?\d+ -?\d+ -?\d+ \d+ \d+ \d+ \d+ \d+ (\d+) (\d+) (-?\d+) (-?\d+) -?\d+ -?\d+ -?\d+ 0 (\d+) (\d+) (-?\d+) \d+ \d+ \d+ \d+ \d+ \d+ \d+ \d+ \d+ \d+ \d+ \d+ \d+ -?\d+ -?\d+ \d+ \d+ \d+/) {
return {
status => $1,
+ ppid => $2,
utime => $3,
stime => $4,
starttime => $7,
# for processes spanned by other processes.
# kill(0, pid) return succes for zombies.
# So we read the status form /proc/$pid/stat instead
-
+
my $info = read_proc_pid_stat($pid);
-
+
return $info && (!$pstart || ($info->{starttime} eq $pstart)) && ($info->{status} ne 'Z') ? $info : undef;
}
swaptotal => 0,
swapfree => 0,
swapused => 0,
+ arcsize => 0,
};
my $fh = IO::File->new ("/proc/meminfo", "r");
while (my $line = <$fh>) {
if ($line =~ m/^(\S+):\s+(\d+)\s*kB/i) {
$d->{lc ($1)} = $2 * 1024;
- }
+ }
}
close($fh);
$res->{swapfree} = $d->{swapfree};
$res->{swapused} = $res->{swaptotal} - $res->{swapfree};
- my $spages = PVE::Tools::file_read_firstline("/sys/kernel/mm/ksm/pages_sharing");
+ my $spages = PVE::Tools::file_read_firstline("/sys/kernel/mm/ksm/pages_sharing") // 0 ;
$res->{memshared} = int($spages) * 4096;
+ my $arc_stats = eval { PVE::Tools::file_get_contents("/proc/spl/kstat/zfs/arcstats") };
+ if ($arc_stats && $arc_stats =~ m/^size\s+\d+\s+(\d+)$/m) {
+ $res->{arcsize} = int($1);
+ }
+
return $res;
}
sub write_proc_entry {
my ($filename, $data) = @_;#
- my $fh = IO::File->new($filename, O_WRONLY);
+ my $fh = IO::File->new($filename, O_WRONLY);
die "unable to open file '$filename' - $!\n" if !$fh;
- die "unable to write '$filename' - $!\n" unless print $fh $data;
- die "closing file '$filename' failed - $!\n" unless close $fh;
+ print $fh $data or die "unable to write '$filename' - $!\n";
+ close $fh or die "closing file '$filename' failed - $!\n";
$fh->close();
}
sub parse_mounts {
my ($mounts) = @_;
+
my $mntent = [];
while ($mounts =~ /^\s*([^#].*)$/gm) {
# lines from the file are encoded so we can just split at spaces
# in glibc's parser frequency and pass seem to be optional
$freq = $1 if $opts =~ s/\s+(\d+)$//;
$passno = $1 if $opts =~ s/\s+(\d+)$//;
- push @$mntent, [decode_mount($what),
- decode_mount($dir),
- decode_mount($fstype),
- decode_mount($opts),
- $freq, $passno];
+ push @$mntent, [
+ decode_mount($what),
+ decode_mount($dir),
+ decode_mount($fstype),
+ decode_mount($opts),
+ $freq,
+ $passno,
+ ];
}
return $mntent;
}
projects / pve-common.git / blobdiff