[WT] Add block_truncate_max to bound the page-cache invalidation stall caused by a single large ftruncate()

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    • Type: Task
    • Resolution: Unresolved
    • Priority: Major - P3
    • None
    • Affects Version/s: None
    • Component/s: Truncate
    • None
    • Storage Engines - Persistence
    • 778.384
    • StorEng - Defined Pipeline
    • None

      "a checkpoint returning a large amount of space with one ftruncate() call" blocks every request that needs to read from the same file, and showing that rate-limiting a single truncate with block_truncate_max reduces the stall to a negligible value.

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        12. trunc_lat.c
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        13. trunc_lat-1.c
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            Assignee:
            Unassigned
            Reporter:
            y yz (EXT)
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              Created:
              Updated: