Strange performance characteristics of write ops in shell

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    • Type: Bug
    • Resolution: Duplicate
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: Shell
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    • ALL
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    • 3
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      Running these two cases shows some unexpectedly huge discrepancy in run time:

      db.user.drop();
for (var x = 0; x < 10000; x++) {
    db.user.insert({ x: x });
    if (!db.getMongo().useWriteCommands()) {
        db.runCommand({ getLastError: 1 });
    }
}

      raw smoke.py: 4697 ms
      --use-write-commands: 8640 ms

      db.user.drop();
var bulk = db.user.initializeUnorderedBulkOp();
for (var x = 0; x < 10000; x++) {
    bulk.insert({ x: x });
}
bulk.execute();

      raw smoke.py: 4769 ms
      --use-write-commands: 305 ms

        1. Screenshot 2014-03-02 19.24.33.png
          Screenshot 2014-03-02 19.24.33.png
          195 kB
        2. Screenshot 2014-03-03 21.36.43.png
          Screenshot 2014-03-03 21.36.43.png
          313 kB

              Assignee:
              Davide Italiano (Inactive)
              Reporter:
              Randolph Tan
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                Created:
                Updated:
                Resolved: