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  1. Kudu
  2. KUDU-636

optimization: we spend a lot of time in alloc/free

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: Public beta
    • Fix Version/s: None
    • Component/s: perf
    • Labels:

      Description

      Looking at a workload in the cluster, several of the top 10 lines of perf report are tcmalloc-related. It seems like we don't do a good job of making use of the per-thread free-lists, and we end up in a lot of contention on the central free list. There are a few low-hanging fruit things we could do to improve this for a likely perf boost.

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              • Assignee:
                Unassigned
                Reporter:
                tlipcon Todd Lipcon
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                Dates

                • Created:
                  Updated: