WiredTiger now has a phase at the beginning of checkpoints where eviction works to reduce the volume of dirty data to 5% of the cache size. In testing, some workloads experience a performance regression during this phase.
Change the WiredTiger default to 15% to reduce the impact on such workloads.
- is related to
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WT-2902 Enhance eviction to work better with update heavy YCSB load
- Closed