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https://issues.apache.org/jira/browse/OAK-11089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17880147#comment-17880147
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Nicolas Ettlin commented on OAK-11089:
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I have the code changes ready for this, I’m waiting for my previous PRs to be
merged to avoid conflicts
> Allow SegmentReferences/RecordNumbers to provide their memory estimates
> -----------------------------------------------------------------------
>
> Key: OAK-11089
> URL: https://issues.apache.org/jira/browse/OAK-11089
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: segment-tar
> Affects Versions: 1.68.0
> Reporter: Nicolas Ettlin
> Priority: Minor
>
> The Segment#estimateMemoryUsage currently takes into account the number of
> record numbers and referenced segment IDs in the segment in order to provide
> the total size estimate.
> This can be in issue when using implementations of
> RecordNumbers/SegmentReferences for which determining this total count is
> expensive. To improve this, we should allow RecordNumbers/SegmentReferences
> to provide themselves an estimate. By default, this estimation would be
> computed in the same way as we currently do, which makes this change
> backwards-compatible.
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