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From: Aaron Lauterer <a.lauterer@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Fri, 23 May 2025 18:37:38 +0200
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Subject: [pve-devel] [PATCH common 4/4] metrics: add buffer and cache to
meminfo
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From: Folke Gleumes <f.gleumes@proxmox.com>
Expose buffers and cache as separate metrics instead of including them
in memfree and memused.
Originally-by: Folke Gleumes <f.gleumes@proxmox.com>
[AL: rebased and adapted to changes that happened in the meantime]
Signed-off-by: Aaron Lauterer <a.lauterer@proxmox.com>
---
src/PVE/ProcFSTools.pm | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/PVE/ProcFSTools.pm b/src/PVE/ProcFSTools.pm
index 185b2b3..91a69be 100644
--- a/src/PVE/ProcFSTools.pm
+++ b/src/PVE/ProcFSTools.pm
@@ -303,6 +303,8 @@ sub read_meminfo {
memfree => 0,
memavailable => 0,
memused => 0,
+ membuffers => 0,
+ memcached => 0,
memshared => 0,
swaptotal => 0,
swapfree => 0,
@@ -328,6 +330,8 @@ sub read_meminfo {
# 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.
$res->{memused} = $res->{memtotal} - $d->{memavailable};
+ $res->{membuffers} = $d->{buffers};
+ $res->{memcached} = $d->{cached};
$res->{swaptotal} = $d->{swaptotal};
$res->{swapfree} = $d->{swapfree};
--
2.39.5
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