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Posted to oak-issues@jackrabbit.apache.org by "Michael Dürig (JIRA)" <ji...@apache.org> on 2018/11/07 08:13:00 UTC
[jira] [Commented] (OAK-7885) Performance regression in
FlatTreeUpdateTest
[ https://issues.apache.org/jira/browse/OAK-7885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677808#comment-16677808 ]
Michael Dürig commented on OAK-7885:
------------------------------------
The problem is caused by too frequently purging the queue tracking the commits: [https://github.com/apache/jackrabbit-oak/blob/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/CommitsTracker.java#L86]
If I remove this line numbers are back to to the baseline.
> Performance regression in FlatTreeUpdateTest
> --------------------------------------------
>
> Key: OAK-7885
> URL: https://issues.apache.org/jira/browse/OAK-7885
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: segment-tar
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Priority: Major
> Fix For: 1.10
>
>
> Apparently the [fix|http://svn.apache.org/viewvc?rev=1845234&view=rev] for OAK-7838 introduces a performance regression for {{FlatTreeUpdateTest}}:
> {noformat}
> # FlatTreeUpdateTest C min 10% 50% 90% max N
> rev 1845206 1 5732 5734 6062 7369 7404 10
> rev 1845234 1 10213 10213 16431 20443 20443 5
> {noformat}
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