ksmtuned: use PSS instead of RSZ for caluculating memory usage

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>

diff --git a/debian/patches/series b/debian/patches/series
index 24e86782786f30c8af1a53c108f90daf5860ca5f..1bdac377bfe57ae035e1363b1bad731da4307f85 100644 (file)
--- 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 (file)
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 () {