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procfs: also return MemAvailable when parsing meminfo

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To promote using this over the rather useless, or well very different,
MemFree.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
This commit is contained in:
Thomas Lamprecht 2025-04-07 21:14:11 +02:00
parent 219fe335b6
commit 81aee5bd53
1 changed files with 2 additions and 0 deletions
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src/PVE/ProcFSTools.pm
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@ -279,6 +279,7 @@ sub read_meminfo {
my $res = {
memtotal => 0,
memfree => 0,
memavailable => 0,
memused => 0,
memshared => 0,
swaptotal => 0,
@ -300,6 +301,7 @@ sub read_meminfo {
$res->{memtotal} = $d->{memtotal};
$res->{memfree} = $d->{memfree};
$res->{memavailable} = $d->{memavailable};
# NOTE: MemAvailable is the only metric that will actually represent how much memory is
# available for a new workload, without pushing the system into swap, no amount of calculating
# with BUFFER, CACHE, .. will get you there, only the kernel can know this.