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Posted to oak-issues@jackrabbit.apache.org by "Tomek Rękawek (JIRA)" <ji...@apache.org> on 2017/01/26 13:43:24 UTC
[jira] [Comment Edited] (OAK-5222) Optimize the multiplexing node
store
[ https://issues.apache.org/jira/browse/OAK-5222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15769872#comment-15769872 ]
Tomek Rękawek edited comment on OAK-5222 at 1/26/17 1:42 PM:
-------------------------------------------------------------
Further improvements - the children states/builders are now resolved lazily.
Commit: [r1780391|https://svn.apache.org/r1780391].
Test results:
{noformat}
java -jar oak-run.jar benchmark ReadDeepTreeTest Oak-Multiplexing Oak-Segment-Tar --pathsPerMount=0 --mounts=0
# ReadDeepTreeTest C min 10% 50% 90% max N
Oak-Segment-Tar 1 11 11 12 14 21 4747
Oak-Multiplexing 1 15 16 17 19 26 3515
{noformat}
was (Author: tomek.rekawek):
Further improvements - the children states/builders are now resolved lazily. I haven't committed the patch yet, as it doesn't pass some of the integration test. Results:
{noformat}
java -jar oak-run.jar benchmark ReadDeepTreeTest Oak-Multiplexing Oak-Segment-Tar --pathsPerMount=0 --mounts=0
# ReadDeepTreeTest C min 10% 50% 90% max N
Oak-Segment-Tar 1 11 11 12 14 21 4747
Oak-Multiplexing 1 15 16 17 19 26 3515
{noformat}
Patch: [^OAK-5222-1.patch].
> Optimize the multiplexing node store
> ------------------------------------
>
> Key: OAK-5222
> URL: https://issues.apache.org/jira/browse/OAK-5222
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: core
> Reporter: Tomek Rękawek
> Assignee: Tomek Rękawek
> Fix For: 1.8
>
> Attachments: OAK-5222-1.patch, results1.png
>
>
> I added support for the multiplexing node store for the oak-run benchmark fixtures. It seems that the performance in ReadDeepTreeTest is linearly dependent on the mount counts:
> {noformat}
> Mounts N
> 0 729
> 1 402
> 2 287
> 3 209
> 4 188
> 5 154
> 6 133
> 7 126
> 8 104
> 9 100
> 10 85
> 20 46
> {noformat}
> {{N}} - throughput in 60 seconds. Following command was used:
> {noformat}
> $ java -jar target/oak-run-1.6-SNAPSHOT.jar benchmark ReadDeepTreeTest Oak-Multiplexing --mounts=10
> {noformat}
> It should be possible to improve this, so we won't have a noticeable performance decrease for 1000 mounts.
> //cc: [~rombert]
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