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Reduce system test sharding overhead #12787

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Reduce system test sharding overhead #12787

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31c591f
ci: test fuller system test shards
cgcote Oct 8, 2026
9eb8cf6
ci: test smaller system test shards
cgcote Oct 8, 2026
5ad084d
ci: test maximum system test parallelism
cgcote Oct 8, 2026
8e1948f
Keep the fastest system test shard target
cgcote Oct 8, 2026
4c2d597
Probe a thirteen minute system test shard target
cgcote Oct 8, 2026
1f52993
Select the fastest system test shard target
cgcote Oct 8, 2026
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3 changes: 2 additions & 1 deletion .github/workflows/run-system-tests.yaml
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Expand Up @@ -72,7 +72,8 @@ jobs:
# If you change the following comment, update the pattern in the update_system_test_reference.sh script to match.
ref: "main" # system tests are pinned on release branches only
binaries_artifact: binaries
desired_execution_time: 900 # 15 minutes
# Use historical durations to reduce the slow tail without hitting the 256-job cap.
desired_execution_time: 750 # 12.5 minutes
scenarios_groups: tracer-release
excluded_scenarios: APM_TRACING_E2E_OTEL,APM_TRACING_E2E_SINGLE_SPAN,PROFILING # exclude flaky scenarios
skip_empty_scenarios: ${{ github.event_name != 'push' && github.event_name != 'schedule' }}
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