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Posted to commits@cassandra.apache.org by "Benedict Elliott Smith (Jira)" <ji...@apache.org> on 2020/01/22 22:34:01 UTC
[jira] [Comment Edited] (CASSANDRA-15512) Add compaction-related
JMH tests
[ https://issues.apache.org/jira/browse/CASSANDRA-15512?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17021589#comment-17021589 ]
Benedict Elliott Smith edited comment on CASSANDRA-15512 at 1/22/20 10:33 PM:
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I alluded in [this comment|https://issues.apache.org/jira/browse/CASSANDRA-15388?focusedCommentId=17015376&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17015376] that we probably need to prune the state space a little (you don't need to prune many options to make it more tractable).
[This spreadsheet|https://issues.apache.org/jira/secure/attachment/12991371/atomicbtreepartition.xlsx.zip] from CASSANDRA-15511 is how I would approach looking at the data once I have a chance to run some comparisons (though this isn't a complete view). To some extent, simply looking at what patterns occur (that jump out) is informative, as is isolating specific variables and looking at aggregate statistics for them. Obviously, what can be usefully reported to Jira is even more summarised, unfortunately, but it's informative particularly for regressions versus baseline.
was (Author: benedict):
I alluded in [this comment|https://issues.apache.org/jira/browse/CASSANDRA-15388?focusedCommentId=17015376&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-17015376] that we probably need to prune the state space a little (you don't need to prune many options to make it more tractable).
[This spreadsheet|https://issues.apache.org/jira/secure/attachment/12991371/atomicbtreepartition.xlsx.zip] from CASSANDRA-15511 is how I would approach looking at the data once I have a chance to run some comparisons (though this isn't a complete view). To some extent, simply looking at what patterns occur (that jump out) is informative, as is looking at isolating specific variables and looking at aggregate statistics for them. Obviously, what can be usefully reported to Jira is even more summarised, unfortunately, but it's informative particularly for regressions versus baseline.
> Add compaction-related JMH tests
> --------------------------------
>
> Key: CASSANDRA-15512
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15512
> Project: Cassandra
> Issue Type: Sub-task
> Components: Local/Compaction
> Reporter: Benedict Elliott Smith
> Assignee: Benedict Elliott Smith
> Priority: Normal
>
> Following up CASSANDRA-15388, we should introduce some isolated JMH tests covering at least the compaction merge path and partition deserialization, covering a wide range of partition shapes and characteristics.
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