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https://issues.apache.org/jira/browse/BOOKKEEPER-451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13510675#comment-13510675
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Ivan Kelly commented on BOOKKEEPER-451:
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I'm starting to see the merit of using skiplists after implementing this. With
the slab approach, performance will suffer when number of ledger grows higher
than the number of slabs. Using a single skiplist, you can get the same sorted
write advantage of my patch, but without the limit.
> Reorder writes based on ledger-id before writing to the log file
> ----------------------------------------------------------------
>
> Key: BOOKKEEPER-451
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-451
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Affects Versions: 4.2.0
> Reporter: Aniruddha
> Assignee: Aniruddha
> Fix For: 4.3.0
>
> Attachments: 0001-Slab-allocator.patch, readPerf.png, writePerf.png
>
>
> Allocate chunks to ledgers on writes to the log file to improve entry
> locality per ledger.
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