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https://issues.apache.org/jira/browse/RATIS-1890?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Andika updated RATIS-1890:
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Attachment: profile_cpu_high_rpc_0915_ck_om3.html
> 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: 2.4.0, 2.4.1, 2.5.0, 2.5.1
> Reporter: Ivan Andika
> Priority: Minor
> 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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