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Posted to oak-issues@jackrabbit.apache.org by "Marcel Reutegger (JIRA)" <ji...@apache.org> on 2019/04/01 08:02:00 UTC
[jira] [Created] (OAK-8185) Improve CompositeNodeStore performance
Marcel Reutegger created OAK-8185:
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Summary: Improve CompositeNodeStore performance
Key: OAK-8185
URL: https://issues.apache.org/jira/browse/OAK-8185
Project: Jackrabbit Oak
Issue Type: Improvement
Components: store-composite
Reporter: Marcel Reutegger
While working on OAK-8141 I noticed the benchmark numbers for GetDeepNodeTest on Oak-Store-Composite are rather low compared to Oak-Segment-Tar.
{noformat}
Apache Jackrabbit Oak 1.12-SNAPSHOT
# GetDeepNodeTest C min 10% 50% 90% max N
Oak-Segment-Tar 1 35 37 39 41 64 1524
Oak-Composite-Store 1 203 204 208 214 236 288
{noformat}
In an offline conversion [~tomek.rekawek] mentioned the overhead shouldn't be that big because the implementation should switch to the non-composite implementation as soon as the read operation traverses into the global/writable node store. It seems however, this is not the case when running GetDeepNodeTest. So, this may well be a bug and not an improvement, as filed at the moment.
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