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lhotari pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/pulsar-helm-chart.git
The following commit(s) were added to refs/heads/master by this push:
new 1cbf727 Fix CI: sync tune-runner-vm changes from apache/pulsar
1cbf727 is described below
commit 1cbf727f16224fbe0ba5846df85fb46cc5ffffcb
Author: Lari Hotari <[email protected]>
AuthorDate: Tue Apr 21 09:57:59 2026 +0300
Fix CI: sync tune-runner-vm changes from apache/pulsar
---
.github/actions/tune-runner-vm/action.yml | 56 ++++++++++++-------------------
1 file changed, 21 insertions(+), 35 deletions(-)
diff --git a/.github/actions/tune-runner-vm/action.yml
b/.github/actions/tune-runner-vm/action.yml
index ab0f657..d0d93ef 100644
--- a/.github/actions/tune-runner-vm/action.yml
+++ b/.github/actions/tune-runner-vm/action.yml
@@ -22,7 +22,8 @@ description: tunes the GitHub Runner VM operation system
runs:
using: composite
steps:
- - run: |
+ - shell: bash
+ run: |
if [[ "$OSTYPE" == "linux-gnu"* ]]; then
echo "::group::Configure and tune OS"
# Ensure that reverse lookups for current hostname are handled
properly
@@ -33,50 +34,41 @@ runs:
# consumption is high.
# Set vm.swappiness=1 to avoid swapping and allow high RAM usage
echo 1 | sudo tee /proc/sys/vm/swappiness
- (
- shopt -s nullglob
- # Set swappiness to 1 for all cgroups and sub-groups
- for swappiness_file in /sys/fs/cgroup/memory/*/memory.swappiness
/sys/fs/cgroup/memory/*/*/memory.swappiness; do
- echo 1 | sudo tee $swappiness_file > /dev/null
- done
- ) || true
# use "madvise" Linux Transparent HugePages (THP) setting
#
https://www.kernel.org/doc/html/latest/admin-guide/mm/transhuge.html
# "madvise" is generally a better option than the default "always"
setting
- # Based on Azul instructions from
https://docs.azul.com/prime/Enable-Huge-Pages#transparent-huge-pages-thp
+ # recommendation from
https://netflixtechblog.com/bending-pause-times-to-your-will-with-generational-zgc-256629c9386b
echo madvise | sudo tee /sys/kernel/mm/transparent_hugepage/enabled
echo advise | sudo tee
/sys/kernel/mm/transparent_hugepage/shmem_enabled
- echo defer+madvise | sudo tee
/sys/kernel/mm/transparent_hugepage/defrag
+ echo defer | sudo tee /sys/kernel/mm/transparent_hugepage/defrag
echo 1 | sudo tee
/sys/kernel/mm/transparent_hugepage/khugepaged/defrag
# tune filesystem mount options,
https://www.kernel.org/doc/Documentation/filesystems/ext4.txt
# commit=999999, effectively disables automatic syncing to disk
(default is every 5 seconds)
# nobarrier/barrier=0, loosen data consistency on system crash (no
negative impact to empheral CI nodes)
sudo mount -o remount,nodiscard,commit=999999,barrier=0 / || true
- sudo mount -o remount,nodiscard,commit=999999,barrier=0 /mnt ||
true
+ if mountpoint -q /mnt; then
+ sudo mount -o remount,nodiscard,commit=999999,barrier=0 /mnt ||
true
+ fi
# disable discard/trim at device level since remount with
nodiscard doesn't seem to be effective
# https://www.spinics.net/lists/linux-ide/msg52562.html
- for i in /sys/block/sd*/queue/discard_max_bytes; do
- echo 0 | sudo tee $i
+ for i in /sys/block/*/queue/discard_max_bytes; do
+ if [ -f "$i" ]; then
+ echo 0 | sudo tee "$i"
+ fi
done
- # disable any background jobs that run SSD discard/trim
- sudo systemctl disable fstrim.timer || true
- sudo systemctl stop fstrim.timer || true
- sudo systemctl disable fstrim.service || true
- sudo systemctl stop fstrim.service || true
+ # disable unnecessary timers
+ sudo systemctl stop fstrim.timer fstrim.service \
+ podman-auto-update.timer sysstat-collect.timer
sysstat-summary.timer \
+ phpsessionclean.timer man-db.timer motd-news.timer \
+ dpkg-db-backup.timer e2scrub_all.timer \
+ update-notifier-download.timer update-notifier-motd.timer || true
- # stop php-fpm
- sudo systemctl stop php8.0-fpm.service || true
- sudo systemctl stop php7.4-fpm.service || true
- # stop mono-xsp4
- sudo systemctl disable mono-xsp4.service || true
- sudo systemctl stop mono-xsp4.service || true
- sudo killall mono || true
+ # stop unnecessary services
+ sudo systemctl stop php8.3-fpm.service ModemManager.service \
+ multipathd.socket multipathd.service udisks2.service
walinuxagent.service || true
- # stop Azure Linux agent to save RAM
- sudo systemctl stop walinuxagent.service || true
-
echo '::endgroup::'
# show memory
@@ -87,10 +79,4 @@ runs:
echo "::group::Available diskspace"
df -BM
echo "::endgroup::"
- # show cggroup
- echo "::group::Cgroup settings for current cgroup $CURRENT_CGGROUP"
- CURRENT_CGGROUP=$(cat /proc/self/cgroup | grep '0::' | awk -F: '{
print $3 }')
- sudo cgget -a $CURRENT_CGGROUP || true
- echo '::endgroup::'
- fi
- shell: bash
+ fi
\ No newline at end of file
