[pve-devel] [PATCH ksm-control-daemon] ksmtuned: use PSS instead of RSZ for caluculating memory usage

[Stefan Lendl <s.lendl@proxmox.com>]

PSS properly accounts for memory usage of shared libraries and is
therefore better suited when summing up memory usage of multiple
processes.

Signed-off-by: Stefan Lendl <s.lendl@proxmox.com>
---
 debian/patches/series                      |  1 +
 debian/patches/use-pss-instead-of-rsz.diff | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 debian/patches/use-pss-instead-of-rsz.diff

diff --git a/debian/patches/series b/debian/patches/series
index 24e8678..1bdac37 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -2,3 +2,4 @@ init-script.diff
 ksmtuned.diff
 adjust-ksm-slepp.diff
 awk-printf.diff
+use-pss-instead-of-rsz.diff
diff --git a/debian/patches/use-pss-instead-of-rsz.diff b/debian/patches/use-pss-instead-of-rsz.diff
new file mode 100644
index 0000000..885bf30
--- /dev/null
+++ b/debian/patches/use-pss-instead-of-rsz.diff
@@ -0,0 +1,11 @@
+--- ksm-control-scripts/ksmtuned	2024-04-08 15:10:04.218449486 +0200
++++ ksm-control-scripts.new/ksmtuned	2024-04-08 15:10:16.214620527 +0200
+@@ -72,7 +72,7 @@
+     # calculate how much memory is committed to running qemu processes
+     local progname
+     progname=${1:-kvm}
+-    ps -C "$progname" -o rsz | awk '{ sum += $1 }; END { printf ("%.0f", sum) }'
++    ps -C "$progname" -o pss= | awk '{ sum += $1 }; END { printf ("%.0f", sum) }'
+ }
+ 
+ free_memory () {
-- 
2.44.0