Details
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Bug
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Status: Closed
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Major - P3
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Resolution: Fixed
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4.2.0
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None
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3
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Storage Engines 2019-12-16
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v4.2
Description
Performance regression got introduced in 4.2 version compared to 4.0 when the test contains 5 collections with 10 indexes each. Indexes are designed to have keys with substantial common prefixes; this seemed to be important to generate the issue. Collections are populated, then are sparsely updated in parallel, aiming for roughly 1 update per page, in order to generate dirty pages at a high rate with little application work.
More details about the discussion of the issue can be found in SERVER-44991.
Attachments
Issue Links
- is caused by
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WT-4642 Store transaction IDs durably.
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- Closed
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- is depended on by
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SERVER-44991 Performance regression in indexes with keys with common prefixes
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- Closed
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