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From "Brandon Williams (JIRA)" <>
Subject [jira] Updated: (CASSANDRA-2020) performance falls off heavily towards the end
Date Thu, 20 Jan 2011 20:08:43 GMT


Brandon Williams updated CASSANDRA-2020:

           Component/s: Core
    Remaining Estimate: 8h
     Original Estimate: 8h

> performance falls off heavily towards the end
> ---------------------------------------------------------
>                 Key: CASSANDRA-2020
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Brandon Williams
>            Assignee: Pavel Yaskevich
>            Priority: Minor
>             Fix For: 0.7.1
>   Original Estimate: 8h
>  Remaining Estimate: 8h
> This is due to threads completing towards the end, such that there aren't enough to fully
stress the cluster.  The main problem here is that is a straight port of,
where each thread runs through some range until it's done, and the threads finish at different
times (probably offset by jvm warmup time.)  Instead, a producer/consumer model would work

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