mirror of https://github.com/pragma-/pbot.git
63 lines
1.4 KiB
Perl
Executable File
63 lines
1.4 KiB
Perl
Executable File
#!/usr/bin/env perl
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# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
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# SPDX-License-Identifier: MIT
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use warnings;
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use strict;
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use Proc::ProcessTable;
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use IO::Socket;
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my $SLEEP = 15;
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my $MAX_PCTCPU = 25;
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my $QEMU = 'qemu-system-x86';
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my $MONITOR_PORT = 3335;
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my $last_pctcpu = 0;
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sub reset_vm {
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print "Resetting vm\n";
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my $sock = IO::Socket::INET->new(PeerAddr => '127.0.0.1', PeerPort => $MONITOR_PORT, Prot => 'tcp');
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if(not defined $sock) {
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print "[vm_reset] Unable to connect to monitor: $!\n";
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return;
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}
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print $sock "loadvm 1\n";
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close $sock;
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print "Reset vm\n";
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}
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while (1) {
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my $t = new Proc::ProcessTable(enable_ttys => 0);
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my ($pids, $p);
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foreach $p (@{$t->table}) {
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$pids->{$p->pid} = { fname => $p->fname, ppid => $p->ppid };
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}
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foreach $p (keys %$pids) {
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if ($pids->{$p}->{fname} eq $QEMU) {
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my $ppid = $pids->{$p}->{ppid};
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if ($pids->{$ppid}->{fname} eq 'compiler_server') {
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my $pctcpu = `top -b -n 1 -p $p | tail -n 1 | awk '{print \$9}'`;
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$pctcpu =~ s/^\s+|\s+$//g;
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print scalar localtime, " :: Got compiler qemu pid: $p; using $pctcpu cpu\n" if $pctcpu > 0;
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if ($pctcpu >= $last_pctcpu and $last_pctcpu >= $MAX_PCTCPU) {
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reset_vm;
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$last_pctcpu = 0;
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} else {
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$last_pctcpu = $pctcpu;
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}
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}
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}
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}
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sleep $SLEEP;
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}
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