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https://issues.apache.org/jira/browse/CASSANDRA-3460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13148293#comment-13148293
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Radim Kolar commented on CASSANDRA-3460:
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during latency testing i discovered that ideal will be to have sub millisecond
latency rounded to 2 digits displayed if result is < 10 ms.
Because after cassandra heap gets more full, its latency is increased about 0.5
ms making result > 1 ms in most common cases for rows not found. Cassandra
flush push latency under 1 ms again.
> Increase precision of elapsed time in casandra-cli
> --------------------------------------------------
>
> Key: CASSANDRA-3460
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3460
> Project: Cassandra
> Issue Type: Improvement
> Components: Tools
> Affects Versions: 1.0.2
> Reporter: Radim Kolar
> Priority: Minor
>
> Cassandra often return response in less then < 1 ms
> from another datacenter
> [default@test] get sipdb[23];
> Returned 0 results.
> Elapsed time: 219 msec(s).
> from own dataceter
> [default@test] get sipdb[13];
> Returned 0 results.
> Elapsed time: 0 msec(s).
> Precession of this timer needs to be increased a bit, while looking at
> network latency adding 1 number should be enough like : 0.2 ms should be
> sufficient.
> It would be good to display sub milliseconds only if time elapsed is < 1 ms.
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