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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-408) Pool BufferedRandomAccessFile objects used by sstable reads
Date Tue, 01 Sep 2009 18:52:32 GMT
Pool BufferedRandomAccessFile objects used by sstable reads
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                 Key: CASSANDRA-408
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-408
             Project: Cassandra
          Issue Type: New Feature
            Reporter: Jonathan Ellis
            Assignee: Jonathan Ellis
             Fix For: 0.5
         Attachments: 408.patch, commons-pool-1.5.2.jar

not only does BRAF per op do a whole lot of extra fopens, but the buffering actually makes
it _more_ expensive to set up since on the jvm all primitive arrays are initialized to zero.

this adds a simple read test to stress.py; I'm seeing about a 10% increase in throughput which
is worth 200loc imo.

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