Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-1041

test1-4 latency issues

    XMLWordPrintable

    Details

    • Type: Task
    • Status: Closed
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: WT2.3.0
    • Component/s: None

      Description

      In looking at the results from test1-4 AWS SSD on develop from the weekend, several tests had multi-second latencies. In particular, test4, the read-only test, had a 7+ second latency. Even though the config has max_latency=2000 it didn't stop due to a unit conversion bug that I fixed today in changeset 9ea7a82d112a8760c25f5f8da6f584f6c664cb89.

      On the AWS HD system, I am seeing multi-second latencies (4+ seconds) on test1-50m, the populate test. I'm using Alexandra (Sasha) Fedorova pintools to see if I can get a trace of where that is happening. Since it is on populate, I don't think it is necessarily the same as WT-1030.

        Attachments

          Issue Links

          is related to

          Task - A task that needs to be done. WT-1044 Lsm throttle tune

          • Closed

          Task - A task that needs to be done. WT-1051 Fix some LSM latency issues

          • Closed
          related to

          Task - A task that needs to be done. WT-1030 speeding up reads

          • Closed

            Activity

              People

              • Assignee:
                Unassigned
                Reporter:
                sue.loverso Susan LoVerso
              • Votes:
                0 Vote for this issue
                Watchers:
                0 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: