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https://issues.apache.org/jira/browse/CASSANDRA-5933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13822170#comment-13822170
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Jonathan Ellis commented on CASSANDRA-5933:
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So did we bottom out at this not actually being a thing?
> 2.0 read performance is slower than 1.2
> ---------------------------------------
>
> Key: CASSANDRA-5933
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5933
> Project: Cassandra
> Issue Type: Bug
> Reporter: Ryan McGuire
> Attachments: 1.2-faster-than-2.0-stats.png, 1.2-faster-than-2.0.png,
> 5933-new-hardware.png
>
>
> Over the course of several tests I have observed that 2.0 read performance is
> noticeably slower than 1.2
> Example:
> Blue line is 1.2, the rest are various forms of 2.0 rc1 (I've also seen this
> on rc2, just don't have a good graph handy)
> !1.2-faster-than-2.0.png!
> !1.2-faster-than-2.0-stats.png!
> [See test data
> here|http://ryanmcguire.info/ds/graph/graph.html?stats=stats.eager_retry.node_killed.json&metric=interval_op_rate&operation=stress-read&smoothing=1]
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