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Robert Stupp commented on CASSANDRA-8341:
-----------------------------------------
Note: {{TheadMXBean.getCurrentThread...()}} definitely performs better than
{{System.nanoTime()}} - at least on OSX with a single 8-core CPU.
> Expose time spent in each thread pool
> -------------------------------------
>
> Key: CASSANDRA-8341
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8341
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Chris Lohfink
> Priority: Minor
> Labels: metrics
> Attachments: 8341.patch, 8341v2.txt
>
>
> Can increment a counter with time spent in each queue. This can provide
> context on how much time is spent percentage wise in each stage.
> Additionally can be used with littles law in future if ever want to try to
> tune the size of the pools.
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