[pve-devel] [PATCH pve-common 1/1] add get_pressure_stat
Thomas Lamprecht
t.lamprecht at proxmox.com
Sat Feb 6 15:13:53 CET 2021
On 04.11.20 02:41, Alexandre Derumier wrote:
> ---
> src/PVE/CGroup.pm | 43 +++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/src/PVE/CGroup.pm b/src/PVE/CGroup.pm
> index 4823be2..457502e 100644
> --- a/src/PVE/CGroup.pm
> +++ b/src/PVE/CGroup.pm
> @@ -358,6 +358,49 @@ sub get_memory_stat {
> return $res;
> }
>
> +# Parse some memory data from `memory.stat`
> +sub get_pressure_stat {
> + my ($self) = @_;
> +
> + my $res = {
> + cpu => {
> + some => { avg10 => 10, avg60 => 0, avg300 => 0 }
here too, why 10 as default for the avg over the last 10 seconds?
> + },
> + memory => {
> + some => { avg10 => 10, avg60 => 0, avg300 => 0 },
> + full => { avg10 => 10, avg60 => 0, avg300 => 0 }
> + },
> + io => {
> + some => { avg10 => 10, avg60 => 0, avg300 => 0 },
> + full => { avg10 => 10, avg60 => 0, avg300 => 0 }
> + },
> + };
> +
> + my ($path, $ver) = $self->get_path(undef, 1);
> + if (!defined($path)) {
> + # container or VM most likely isn't running
> + return undef;
> + } elsif ($ver == 2) {
> +
> + foreach my $type (qw(cpu memory io)) {
> + if (my $fh = IO::File->new ("$path/$type.pressure", "r")) {
> + while (defined (my $line = <$fh>)) {
> + if ($line =~ /^(some|full)\s+avg10\=(\d+\.\d+)\s+avg60\=(\d+\.\d+)\s+avg300\=(\d+\.\d+)\s+total\=(\d+)/) {
> + $res->{$type}->{$1}->{avg10} = $2;
> + $res->{$type}->{$1}->{avg60} = $3;
> + $res->{$type}->{$1}->{avg300} = $4;
> + }
> + }
> + $fh->close;
> + }
> + }
> + } else {
> + die "bad cgroup version: $ver\n";
> + }
> +
> + return $res;
> +}
> +
> # Change the memory limit for this container.
> #
> # Dies on error (including a not-running or currently-shutting-down guest).
>
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