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  1. WiredTiger
  2. WT-5042

Reduce configuration parsing overhead from checkpoints

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major - P3
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: 4.3 Required
    • Component/s: None
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      Description

      In workloads where there are a lot of open data handles, it can be disruptive to other application operations while a checkpoint gathers the set of handles that need to be included in the checkpoint. This is called the prepare phase of a checkpoint (see __checkpoint_prepare).

      I crafted a wtperf workload that uses 30,000 tables with a reasonably light insert workload. I see a lot of the time in checkpoints being spent doing configuration parsing. We should review whether it's possible to reduce the amount of time doing configuration parsing.

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            • Assignee:
              backlog-server-storage-engines Backlog - Storage Engines Team
              Reporter:
              alexander.gorrod Alexander Gorrod
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              Dates

              • Created:
                Updated: