Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-2453

Throughput drop in wtperf evict Jenkins tests

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT2.9.0
    • Labels:

      Description

      A recent change to Jenkins led to an unexpected throughput drop in the wtperf evict jobs in Jenkins. The regression was introduced by: http://build.wiredtiger.com:8080/job/wiredtiger-perf-evict/495/

      That is adding in more eviction worker threads to the wtperf configuration files. Which was related to WT-2432.

      Testing with more eviction worker threads is more interesting that testing a single eviction worker - so it is worthwhile understanding the source of the difference.

        Attachments

        1. dev-vs-wt-2453-24-cores.png
          dev-vs-wt-2453-24-cores.png
          46 kB
        2. dev-vs-wt-2453-4-cores.png
          dev-vs-wt-2453-4-cores.png
          43 kB
        3. ev4workers.jpg
          ev4workers.jpg
          61 kB
        4. evict1profile.jpg
          evict1profile.jpg
          17 kB
        5. evict4profile.jpg
          evict4profile.jpg
          18 kB
        6. treewalk.jpg
          treewalk.jpg
          49 kB

          Issue Links

            Activity

              People

              • Assignee:
                sue.loverso Sue LoVerso
                Reporter:
                alexander.gorrod Alexander Gorrod
              • Votes:
                0 Vote for this issue
                Watchers:
                5 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: