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From "Johan Oskarsson (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-950) Cache BufferedRandomAccessFile.length
Date Sat, 03 Apr 2010 12:15:27 GMT
Cache BufferedRandomAccessFile.length
-------------------------------------

                 Key: CASSANDRA-950
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-950
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Johan Oskarsson


Profiling shows that BufferedRandomAccessFile.length is eating up an unexpected amount of
cpu. It believe it is the call through the "native barrier" that is causing it. We often call
the length method via is end of file when reading data. We can add caching of the file length
to avoid this call most times.

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