[
https://issues.apache.org/jira/browse/HBASE-16146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15547198#comment-15547198
]
Mikhail Antonov commented on HBASE-16146:
-----------------------------------------
>From my perspective (I have not been running YCSB with this patch though) I'm
>+1 on it for branch-1 and branch-1.3. In some tests/workloads we did see
>scenarios when excessive thread locals allocations for counters in metrics
>cause load / latency on the hot machines to go up, impairing stability.
> Counters are expensive...
> -------------------------
>
> Key: HBASE-16146
> URL: https://issues.apache.org/jira/browse/HBASE-16146
> Project: HBase
> Issue Type: Sub-task
> Reporter: stack
> Attachments: HBASE-16146.branch-1.3.001.patch, counters.patch,
> less_and_less_counters.png
>
>
> Doing workloadc, perf shows 10%+ of CPU being spent on counter#add. If I
> disable some of the hot ones -- see patch -- I can get 10% more throughput
> (390k to 440k). Figure something better.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
