The update portion of the repro script repro-10MBx2.sh from SERVER-33191 shows ~10x regression between 3.6.5 (left) and 3.6.6 (right).
This seems to be related to eviction of large pages. Interestingly even though we are doing only about 9 updates per second, we are doing 170 evictions per second.
- depends on
-
WT-4483 Improve caching of small updates to large values
- Closed
- duplicates
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WT-4483 Improve caching of small updates to large values
- Closed
- is related to
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SERVER-31679 Increase in disk i/o for writes to replica set
- Closed
-
SERVER-33191 Cache-full hangs on 3.6
- Closed
-
SERVER-36373 create test to fill WT cache during steady state replication
- Closed
-
WT-4105 Optimize cache usage for update workload with history pinned
- Closed
- related to
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SERVER-35958 Big CPU load increase (×4) on secondary by upgrading 3.4.15 → 3.6.5
- Closed