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From "Ryan McGuire (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-6746) Reads have a slow ramp up in speed
Date Thu, 20 Feb 2014 21:00:20 GMT
Ryan McGuire created CASSANDRA-6746:
---------------------------------------

             Summary: Reads have a slow ramp up in speed
                 Key: CASSANDRA-6746
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6746
             Project: Cassandra
          Issue Type: Bug
            Reporter: Ryan McGuire
         Attachments: 2.1_vs_2.0_read.png

On a physical four node cluister I am doing a big write and then a big read. The read takes
a long time to ramp up to respectable speeds.

!2.1_vs_2.0_read.png!

[See data here|http://ryanmcguire.info/ds/graph/graph.html?stats=stats.2.1_vs_2.0_vs_1.2.retry1.json&metric=interval_op_rate&operation=stress-read&smoothing=1]



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