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| author | Simon Rettberg | 2023-08-02 14:45:10 +0200 |
|---|---|---|
| committer | Simon Rettberg | 2023-08-02 14:45:10 +0200 |
| commit | dff841530793a9b847e8a3fc37be8675250ba64a (patch) | |
| tree | 028a5ba030cde63ee3965eb7ff0f15e09047140c /core/modules/bwlp-stage4-tweaks | |
| parent | Add more log output to a couple of systemd startup scripts (diff) | |
| download | mltk-dff841530793a9b847e8a3fc37be8675250ba64a.tar.gz mltk-dff841530793a9b847e8a3fc37be8675250ba64a.tar.xz mltk-dff841530793a9b847e8a3fc37be8675250ba64a.zip | |
[system-tweaks] Move a few more specific things to bwlp-stage4-tweaks
Diffstat (limited to 'core/modules/bwlp-stage4-tweaks')
4 files changed, 38 insertions, 0 deletions
diff --git a/core/modules/bwlp-stage4-tweaks/data/etc/systemd/system/general-system-tweaks.service b/core/modules/bwlp-stage4-tweaks/data/etc/systemd/system/general-system-tweaks.service new file mode 100644 index 00000000..8bf67972 --- /dev/null +++ b/core/modules/bwlp-stage4-tweaks/data/etc/systemd/system/general-system-tweaks.service @@ -0,0 +1,7 @@ +[Unit] +Description=Apply general system tweaks + +[Service] +ExecStart=/opt/openslx/scripts/systemd-general_system_tweaks +Type=oneshot +RemainAfterExit=true diff --git a/core/modules/bwlp-stage4-tweaks/data/etc/systemd/system/multi-user.target.wants/general-system-tweaks.service b/core/modules/bwlp-stage4-tweaks/data/etc/systemd/system/multi-user.target.wants/general-system-tweaks.service new file mode 120000 index 00000000..11e1b73f --- /dev/null +++ b/core/modules/bwlp-stage4-tweaks/data/etc/systemd/system/multi-user.target.wants/general-system-tweaks.service @@ -0,0 +1 @@ +../general-system-tweaks.service
\ No newline at end of file diff --git a/core/modules/bwlp-stage4-tweaks/data/opt/openslx/pam/hooks/auth-final-exec.d/99-compact-memory.sh b/core/modules/bwlp-stage4-tweaks/data/opt/openslx/pam/hooks/auth-final-exec.d/99-compact-memory.sh new file mode 100755 index 00000000..6d35a3cc --- /dev/null +++ b/core/modules/bwlp-stage4-tweaks/data/opt/openslx/pam/hooks/auth-final-exec.d/99-compact-memory.sh @@ -0,0 +1,9 @@ +#!/bin/ash + +# Compact memory now once at start of graphical session, +# So VM will have as much contiguous blocks available +# as possible. +if [ "$PAM_TTY" = ":0" ]; then + echo 1 > /proc/sys/vm/compact_memory +fi +exit 0 diff --git a/core/modules/bwlp-stage4-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks b/core/modules/bwlp-stage4-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks new file mode 100755 index 00000000..cab11765 --- /dev/null +++ b/core/modules/bwlp-stage4-tweaks/data/opt/openslx/scripts/systemd-general_system_tweaks @@ -0,0 +1,21 @@ +#!/bin/ash + +# General stuff + +# Breaks performance with certain workloads, so disable. +# See https://unix.stackexchange.com/a/185172 for details and further references +echo never > /sys/kernel/mm/transparent_hugepage/defrag +echo 0 > /sys/kernel/mm/transparent_hugepage/khugepaged/defrag +# New player in town doing pretty much the same, tame it +echo 1 > /proc/sys/vm/compaction_proactiveness # default 20 +# Don't swap to easily +echo 10 > /proc/sys/vm/swappiness + +# run-parts-like stuff +DIR="$0.d" +if [ -d "$DIR" ]; then + for file in "$DIR"/*; do + [ -x "$file" ] && "$file" + done +fi +exit 0 |