Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-4371

Workgen improvements to create a MongoDB-like workload

    XMLWordPrintable

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.0.5, 4.1.5, WT3.2.0
    • Component/s: None
    • Labels:
      None

      Description

      This work is split off from WT-4298.  We'll need to modify our latency workload used by workgen in bench/wtperf/runners/checkpoint-latency.wtperf :

      • turn on snappy compression
      • turn off logging on tables, leave logging on for the log-like file, if this is easy. This matches MongoDB. Alex doesn't think this will make much difference in driving our tuning decisions.
      • MongoDB does in memory logging, with an explicit log_flush 10 times/sec. It would be good if we can do this in workgen. Again, only if easy.
      • Higher granularity in monitor. Right now, we are gathering latency statistics once a second, I think more often may give us better insights (are spikes clustered within the checkpoint? happening at the beginning, or end of checkpointing?)

        Attachments

          Activity

            People

            • Assignee:
              donald.anderson Donald Anderson
              Reporter:
              donald.anderson Donald Anderson
            • Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: