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  1. WiredTiger
  2. WT-2610

Investigate eviction hazard pointer check

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT2.9.0, 3.3.8
    • Labels:

      Description

      During eviction of a page, we spend a huge amount of time walking the hazard pointer lists. We even call it twice in the wt_evict path. In profiling, I see we spent 11.3 seconds in wt_evict. Of that, 5.4 seconds was spent walking the hazard pointers in 2 different calls to wt_page_hazard_check. The calls were 2.6 seconds and 2.8 seconds.

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            • Assignee:
              sue.loverso Sue LoVerso
              Reporter:
              sue.loverso Sue LoVerso
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