cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6553) Benchmark counter improvements (counters++)
Date Tue, 07 Jan 2014 02:13:50 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13863822#comment-13863822
] 

Aleksey Yeschenko commented on CASSANDRA-6553:
----------------------------------------------

To clarify - we expect that (under contention) the latency will go up, and the throughput
will decrease. We need to quantify the change, however.

> Benchmark counter improvements (counters++)
> -------------------------------------------
>
>                 Key: CASSANDRA-6553
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6553
>             Project: Cassandra
>          Issue Type: Test
>            Reporter: Ryan McGuire
>            Assignee: Ryan McGuire
>             Fix For: 2.1
>
>
> Benchmark the difference in performance between CASSANDRA-6504 and trunk.
> * Updating totally unrelated counters (different partitions)
> * Updating the same counters a lot (same cells in the same partition)
> * Different cells in the same few partitions (hot counter partition)
> benchmark: https://github.com/iamaleksey/cassandra/commits/6504
> compared to: https://github.com/iamaleksey/cassandra/commits/trunk
> So far, the above changes should only affect the write path.



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Mime
View raw message