Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-31905

in 3.6, __wt_update_obsolete_check, uses significant cpu

    XMLWordPrintable

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Duplicate
    • Affects Version/s: 3.6.0-rc3
    • Fix Version/s: None
    • Component/s: WiredTiger
    • Labels:
      None
    • Operating System:
      ALL
    • Steps To Reproduce:
      Hide

      This regularly occurs after a few minutes of running the ycsb benchmark. Happens on both x86 and power

      Show
      This regularly occurs after a few minutes of running the ycsb benchmark. Happens on both x86 and power

      Description

      the calls to __wt_update_obsolete_check from __col_instantiate and __row_instantiate were not in 3.4. between 3.4 and 3.6-r2 these calls were added and, as a result, __wt_update_obsolete_check cpu usage builds to over 20% of system

        Attachments

        1. ba357b7.diff
          0.9 kB
        2. diag_log_3_6rc3.tar.gz
          7.02 MB
        3. diag_log_3,4.tar.gz
          137 kB
        4. jira.tar
          20 kB

          Issue Links

            Activity

              People

              Assignee:
              keith.bostic Keith Bostic
              Reporter:
              jvf Jim Van Fleet
              Participants:
              Votes:
              0 Vote for this issue
              Watchers:
              10 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved: