Ivan Andika created RATIS-1890:
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Summary: SegmentedRaftLogCache#shouldEvict should only iterate
over closed segments once
Key: RATIS-1890
URL: https://issues.apache.org/jira/browse/RATIS-1890
Project: Ratis
Issue Type: Improvement
Affects Versions: 2.5.1, 2.5.0, 2.4.1, 2.4.0
Reporter: Ivan Andika
Fix For: 2.5.2
Attachments: image-2023-09-18-13-17-25-569.png,
profile_cpu_high_rpc_0915_ck_om3.html
It's observed that `SegmentedLogCache#shouldEvict` iterate over the
`closedSegments` twice:
* `LogSegmentList#countCached`
* `LogSegmentList#getTotalCacheSize`
!image-2023-09-18-13-17-25-569.png|width=302,height=198!
We can improve this by iterating over the `closedSegments` once.
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