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readme: the harness's lock bar counts holds over 1 ms, not the single worst one
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‎README.md‎

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@@ -394,8 +394,8 @@ monitor's scrapes, and the same stall lands on any scraped production node
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with a large arena. With that path made O(1) the fixed arena passes all
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thirteen bars of the validation harness (`/dn/pullbench/validate.py`:
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cold p99 ≤ 1.25× the reference, warm p99 ≤ 1 ms, zero lost, zero UDP
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drops, no lock hold over 1 ms, GC under 1 ms, memory and retention within
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a few percent): cold p99 17 ms, warm p99 0.66 ms with a 4 ms maximum,
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drops, no more than ten lock holds over 1 ms in a run, GC under 1 ms,
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memory and retention within a few percent): cold p99 17 ms, warm p99 0.66 ms with a 4 ms maximum,
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worst lock hold 0.8 ms. The elastic arena then has exactly one remaining
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lock holder above a millisecond: the 16 MB commit inside each exhaustion
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grow (`MADV_COLLAPSE` + `mlock` on the THP tier), 115 of them per 1M

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