[SERVER-17121] Throughput Dropout on mongo-sim insert-update-query workload with WiredTiger - MongoDB Jira

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Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Backport Completed:

3.0.0-rc9
Steps To Reproduce:

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mongod --dbpath /data --storageEngine=wiredTiger
mongo-sim -w workloads/insert_update_query -e 10000000 -t 100 -c 7

Running on linux with SSD.

Running on RC7 and https://mci.10gen.com/task/mongodb_mongo_v3.0_linux_64_b70d96e06c2c3fa86d95f6719ab1815a98db77a9_15_01_29_16_47_02_compile_linux_64

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mongod --dbpath /data --storageEngine=wiredTiger mongo-sim -w workloads/insert_update_query -e 10000000 -t 100 -c 7 Running on linux with SSD. Running on RC7 and https://mci.10gen.com/task/mongodb_mongo_v3.0_linux_64_b70d96e06c2c3fa86d95f6719ab1815a98db77a9_15_01_29_16_47_02_compile_linux_64

Running mongo-sim insert-update-query workload experiencing periods of very low throughput.

This reproduces both on RC7 and latest in v3.0 (b70d96e06c2c3fa86d95f6719ab1815a98db77a9)

mongo-sim is here, with instructions to build: https://github.com/10gen/mongo-sim

is related to

SERVER-17115 insert workload stalls on oplog truncates

Participants:: Ben Becker, Daniel Pasette, David Daly, Michael Cahill, Ramon Fernandez Marina