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https://issues.apache.org/jira/browse/SOLR-16531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17635003#comment-17635003
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Noble Paul edited comment on SOLR-16531 at 11/16/22 10:58 PM:
--------------------------------------------------------------

{quote}when there's a feature flag to disable v2 for anyone that wants to do 
perf-benchmarking on branch_9x{quote}

disabling v2 has no impact on the perf, you get the exact same numbers 

BTW, we normal practice is to undo any commit that causes regression on the 
release branch.    This makes life easier for every developer who commits to 
the release branch. 


was (Author: noble.paul):
{quote}when there's a feature flag to disable v2 for anyone that wants to do 
perf-benchmarking on branch_9x{quote}

disabling v2 has no impact on the perf, you get the exact same numbers 

> Performance degradation due to introduction of JAX-RS
> -----------------------------------------------------
>
>                 Key: SOLR-16531
>                 URL: https://issues.apache.org/jira/browse/SOLR-16531
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Ishan Chattopadhyaya
>            Priority: Blocker
>             Fix For: 9.2
>
>         Attachments: Screenshot from 2022-11-09 11-20-44.png, 
> results-with-patch.tar.gz
>
>
> During performance benchmarking on branch_9x, I observed a slowdown in 
> restart performance since commits in SOLR-16347. See attached screenshot.
> CC [~gerlowskija].
> http://mostly.cool/cluster-test-with-patch.html
> The benchmark is here: 
> https://github.com/fullstorydev/solr-bench/blob/ishan/repeatable-jenkins/suites/cluster-test.json.
>  This suite was run after retro-actively applying the parallelStream patch 
> from SOLR-16414: 
> https://github.com/apache/solr/commit/b33161d0cdd976fc0c3dc78c4afafceb4db671cf.diff
>  
> Effort to automate these benchmarks is WIP and tracked here: SOLR-16525.



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