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ci: debug walltime shard 2 hang on master code (do not merge) #143

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ci: debug walltime shard 2 hang on master code (do not merge) #143

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34 changes: 31 additions & 3 deletions .github/workflows/codspeed.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,15 @@ permissions:
jobs:
benchmarks:
strategy:
fail-fast: false
matrix:
shard: [1, 2, 3, 4]
mode: ["simulation", "walltime", "memory"]
shard: [2]
mode: ["walltime"]
attempt: [1, 2]

name: "Run ${{ matrix.mode }} benchmarks (Shard #${{ matrix.shard }})"
name: "Run ${{ matrix.mode }} benchmarks (Shard #${{ matrix.shard }}, attempt ${{ matrix.attempt }})"
runs-on: ${{ matrix.mode == 'walltime' && 'codspeed-macro' || 'ubuntu-24.04' }}
timeout-minutes: 20
steps:
- uses: actions/checkout@v5
with:
Expand All @@ -37,11 +40,36 @@ jobs:
sudo apt-get install valgrind -y
uv sync --dev
sudo apt-get remove valgrind -y
- name: Arm hang watcher
run: |
sudo apt-get install -y gdb >/dev/null
cat > /tmp/watch.sh <<'EOF'
sleep 480
{
date -u
ps -ef --forest
systemd-cgls --no-pager -u codspeed.slice || true
for p in $(pgrep -x codspeed); do
echo "===== codspeed pid $p: $(tr '\0' ' ' < /proc/$p/cmdline)"
ps -L -o tid,pcpu,stat,wchan:32,comm -p "$p"
for t in /proc/$p/task/*; do echo "$t $(awk '{print $14, $15}' $t/stat)"; done
sleep 10
for t in /proc/$p/task/*; do echo "$t $(awk '{print $14, $15}' $t/stat)"; done
sudo gdb -p "$p" -batch -ex "thread apply all bt 40" 2>&1 | grep -E "^(#|Thread)"
done
} > /tmp/hang-dump.txt 2>&1
EOF
setsid nohup bash /tmp/watch.sh >/dev/null 2>&1 &
- name: Run benchmarks
uses: CodSpeedHQ/action@main
env:
CODSPEED_LOG: debug
with:
mode: ${{ matrix.mode }}
run: uv run pytest tests/benchmarks/ --codspeed --test-group=${{ matrix.shard }} --test-group-count=${{ env.SHARDS }}
- name: Print hang dump
if: always()
run: cat /tmp/hang-dump.txt || echo "no dump (no hang at 8 min)"

all-checks:
runs-on: ubuntu-latest
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