perf: skip cleanup-queue churn when no closed streams are due - #269

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anmonteiro wants to merge 2 commits into

perf/scheduler-cleanup-peek

anmonteiro commented Mar 9, 2026

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Summary

add next_cleanup_epoch cache to the scheduler root
gate tick_closed_streams so it avoids queue pop/reinsert work when the next expiry is still in the future
preserve existing expiry semantics while reducing per-read overhead in the common case

Testing

dune build --no-buffer @runtest-test_h2 @runtest-test_h2_client @runtest-test_h2_server @runtest-test_priority

anmonteiro added 2 commits

March 8, 2026 21:03


          perf: skip cleanup queue work when no streams are expiring

a4474ad


          perf: avoid pop+reinsert for first non-expired cleanup item

739f4a4

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