Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-2187

Performance degradation in logging with write-no-sync and single thread

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT2.7.0
    • Labels:
      None

      Description

      From Dmitri Shubin WT-2184:
      Thanks!

      BTW when trying the same test on 'develop' branch I got:
      $ ./recovery-test
      0 record(s) absent from 486
      $ ./recovery-test
      0 record(s) absent from 453
      Number of messages written is really small in comparison with 261966 in 'master' (WT 2.6.1)
      Is that expected?

        Activity

        Hide
        xgen-internal-githook Githook User added a comment -

        Author:

        {u'username': u'sueloverso', u'name': u'Susan LoVerso', u'email': u'sue@wiredtiger.com'}

        Message: WT-2187 Add flag for flushing a slot so that we are locally handling the
        write_lsn rather than waiting for a worker thread, similar to sync.
        Branch: develop
        https://github.com/wiredtiger/wiredtiger/commit/7fc3033fc2f2eba626abdc7ff29fc0e8f2b85e42

        Show
        xgen-internal-githook Githook User added a comment - Author: {u'username': u'sueloverso', u'name': u'Susan LoVerso', u'email': u'sue@wiredtiger.com'} Message: WT-2187 Add flag for flushing a slot so that we are locally handling the write_lsn rather than waiting for a worker thread, similar to sync. Branch: develop https://github.com/wiredtiger/wiredtiger/commit/7fc3033fc2f2eba626abdc7ff29fc0e8f2b85e42
        Hide
        xgen-internal-githook Githook User added a comment -

        Author:

        {u'username': u'sueloverso', u'name': u'Susan LoVerso', u'email': u'sue@wiredtiger.com'}

        Message: WT-2187 If we're waiting for write_lsn to advance, signal the thread.
        Branch: develop
        https://github.com/wiredtiger/wiredtiger/commit/275916205ef8aa3d21e2c281a0b4df59c360ca17

        Show
        xgen-internal-githook Githook User added a comment - Author: {u'username': u'sueloverso', u'name': u'Susan LoVerso', u'email': u'sue@wiredtiger.com'} Message: WT-2187 If we're waiting for write_lsn to advance, signal the thread. Branch: develop https://github.com/wiredtiger/wiredtiger/commit/275916205ef8aa3d21e2c281a0b4df59c360ca17
        Hide
        xgen-internal-githook Githook User added a comment -

        Author:

        {u'username': u'michaelcahill', u'name': u'Michael Cahill', u'email': u'michael.cahill@mongodb.com'}

        Message: Merge pull request #2280 from wiredtiger/wt-2187

        WT-2187 Add flag for flushing a slot
        Branch: develop
        https://github.com/wiredtiger/wiredtiger/commit/f6b12d38f5f75b7052c175e675e265f0f2caa197

        Show
        xgen-internal-githook Githook User added a comment - Author: {u'username': u'michaelcahill', u'name': u'Michael Cahill', u'email': u'michael.cahill@mongodb.com'} Message: Merge pull request #2280 from wiredtiger/wt-2187 WT-2187 Add flag for flushing a slot Branch: develop https://github.com/wiredtiger/wiredtiger/commit/f6b12d38f5f75b7052c175e675e265f0f2caa197

          People

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

            Dates

            • Created:
              Updated:
              Resolved: