Details
Description
In workloads with almost zero dirty cache usage we can occasionally get into a state where eviction doesn't evict much or anything for a while despite the cache fill ration being >90%. It appears this is related to heuristics around revisiting pages for eviction, as wiredtiger will visit a page for eviction and then skip it up to 5 times following on from that. Additionally the target page ratio isn't high as there isn't dirty content in the cache which means we give up eviction walks quickly.
Attachments
Issue Links
- is related to
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WT-5142 Don't create huge root pages when rebalancing or bulk-loading objects with overflow keys
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- Closed
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