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  1. WiredTiger
  2. WT-1087

Eviction under load

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    Details

    • Type: Task
    • Status: Closed
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
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      Description

      While looking at WT-1068, one thing I noticed is that the eviction server thread can get "stuck" in eviction (particularly splits), and that other threads stall. This branch attempts to address that in two ways:

      1. if other threads are waiting to do eviction, the server thread just wakes them up and keeps scanning for more pages to add to the queue; and
      2. an idea of Keith's: application threads only get involved with eviction when their session is quiet if they have missed in the cache recently while it was full.

      For me, this branch helps quite a lot with the workload from WT-1068 (separately or together with WT-1082).

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              • Assignee:
                Unassigned
                Reporter:
                michael.cahill Michael Cahill
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                • Created:
                  Updated:
                  Resolved: