[pve-devel] [PATCH container 09/20] cgroup: add get_memory_stat

[Thomas Lamprecht]

On 4/3/20 4:37 PM, w.bumiller at proxmox.com wrote:
> ...
> +# Parse some memory data from `memory.stat`
> +sub get_memory_stat {
> +    my ($self) = @_;
> +
> +    my $res = {
> +	mem => 0,
> +	swap => 0,
> +    };
> +
> +    if (cgroup_mode() == 2) {
> +	if (defined(my $path = $self->get_path('memory'))) {
> +	    my $mem = file_get_contents("$path/memory.current");
> +	    my $swap = file_get_contents("$path/memory.swap.current");
> +
> +	    chomp ($mem, $swap);
> +
> +	    # FIXME: For the cgv1 equivalent of `total_cache` we may need to sum up
> +	    # the values in `memory.stat`...

I guess you plan to fix this, as "wrong" memory stats seem to startle our
users quite a bit ^^

> +
> +	    $res->{mem} = $mem;
> +	    $res->{swap} = $swap;