[SERVER-19233] Performance regression for wiredTiger from build 91c9eaeae7 - MongoDB Jira

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Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Steps To Reproduce:

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Run the following command in the shell and the "insert" numbers reported are the ones to look. Change the value for parallel for different number of connections, and the value of seconds to adjust the run time.

benchRun( { ops: [{op: "insert", ns: "test.repro19233", doc: {_id:
{"#OID":1}
}, writeCmd : true } ], parallel: 32, seconds: 20 } )

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Run the following command in the shell and the "insert" numbers reported are the ones to look. Change the value for parallel for different number of connections, and the value of seconds to adjust the run time. benchRun( { ops: [{op: "insert", ns: "test.repro19233", doc: {_id: {"#OID":1} }, writeCmd : true } ], parallel: 32, seconds: 20 } )
Sprint:
Quint Iteration 6

A performance regression was observed for some of the mongo-perf insert and updates micro-benchmarks since git hash: 91c9eaeae7.

Insert.justID throughput dropped from 64,463 to 42,290. Need to investigate and fix.

duplicates

SERVER-19189 Improve performance under high number of threads with WT

Participants:: Alexander Gorrod, Chung-yen Chang, David Daly, David Hows, Geert Bosch, Martin Bligh, Michael Cahill