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work around auto_da_alloc heuristic in CI runners #82099

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work around auto_da_alloc heuristic in CI runners #82099

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9 changes: 9 additions & 0 deletions .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,9 @@ jobs:
- name: collect CPU statistics
run: src/ci/scripts/collect-cpu-stats.sh
if: success() && !env.SKIP_JOB
- name: remount root filesystem
run: src/ci/scripts/tune-rootfs.sh
if: success() && !env.SKIP_JOB
- name: show the current environment
run: src/ci/scripts/dump-environment.sh
if: success() && !env.SKIP_JOB
Expand Down Expand Up @@ -441,6 +444,9 @@ jobs:
- name: collect CPU statistics
run: src/ci/scripts/collect-cpu-stats.sh
if: success() && !env.SKIP_JOB
- name: remount root filesystem
run: src/ci/scripts/tune-rootfs.sh
if: success() && !env.SKIP_JOB
- name: show the current environment
run: src/ci/scripts/dump-environment.sh
if: success() && !env.SKIP_JOB
Expand Down Expand Up @@ -548,6 +554,9 @@ jobs:
- name: collect CPU statistics
run: src/ci/scripts/collect-cpu-stats.sh
if: success() && !env.SKIP_JOB
- name: remount root filesystem
run: src/ci/scripts/tune-rootfs.sh
if: success() && !env.SKIP_JOB
- name: show the current environment
run: src/ci/scripts/dump-environment.sh
if: success() && !env.SKIP_JOB
Expand Down
4 changes: 4 additions & 0 deletions src/ci/github-actions/ci.yml
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Expand Up @@ -137,6 +137,10 @@ x--expand-yaml-anchors--remove:
run: src/ci/scripts/collect-cpu-stats.sh
<<: *step

- name: remount root filesystem
run: src/ci/scripts/tune-rootfs.sh
<<: *step

- name: show the current environment
run: src/ci/scripts/dump-environment.sh
<<: *step
Expand Down
15 changes: 15 additions & 0 deletions src/ci/scripts/tune-rootfs.sh
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@@ -0,0 +1,15 @@
#!/bin/bash

set -euo pipefail
IFS=$'\n\t'

source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"

if isLinux && [[ $(findmnt -n /) =~ "ext4" ]] ; then
# noauto_da_alloc since auto_da_alloc causes sync IO for some common file creation patters
# lazytime avoids sync IO when (rel)atime updates are applied
# nodiscard because the ext4 doesn't support async discard (unlike xfs or btrfs)
sudo mount -oremount,lazytime,nodiscard,noauto_da_alloc /

mount
fi