perf(runner): reduce subprocess overhead in hot paths#621
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Chemaclass merged 3 commits intomainfrom Apr 17, 2026
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…lt_sync Drop six echo|sed subprocesses and one grep per sync test result parse at src/runner.sh:971. Use bash parameter expansion (##*, %%##*) in a single case branch, matching the pattern already used by the async path at lines 714-727. Bash 3.0+ compatible.
Replace fixed 50ms poll with stepped backoff (50ms -> 100ms after 4 iterations -> 200ms after 20) in src/runner.sh:15. Long-running parallel tests no longer spawn `jobs -r | wc -l` 20 times per second per wait; short tests keep the original responsiveness. Bash 3.0+ compatible.
…rovider_args Merge the leading-metachar and embedded-metachar grep calls at src/runner.sh:263 into one `(^|[^\])[|&;*]` pattern. Saves one grep subprocess per parametrized test invocation. Bash 3.0+ compatible.
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✅ Contributor ReportUser: @Chemaclass This user is on the trusted contributors list and was automatically approved. |
JesusValeraDev
approved these changes
Apr 17, 2026
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Summary
echo | sed+ onegrepinparse_result_syncwith bash parameter expansion (mirrors existing fast path inparse_resultatsrc/runner.sh:714-727).wait_for_job_slotwith stepped adaptive backoff (50ms → 100ms after 4 iterations → 200ms after 20) to cutjobs -r | wc -lchurn on long parallel runs.parse_data_provider_argsinto one(^|[^\])[|&;*]pattern.All changes Bash 3.0+ compatible. No public API or behavior changes.