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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-7446) Implement CRC32C native code using SSE4.2 instructions
Date Wed, 06 Jul 2011 04:48:16 GMT
Implement CRC32C native code using SSE4.2 instructions
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                 Key: HADOOP-7446
                 URL: https://issues.apache.org/jira/browse/HADOOP-7446
             Project: Hadoop Common
          Issue Type: Improvement
          Components: native
            Reporter: Todd Lipcon


Once HADOOP-7445 is implemented, we can get further performance improvements by implementing
CRC32C using the hardware support available in SSE4.2. This support should be dynamically
enabled based on CPU feature flags, and of course should be ifdeffed properly so that it doesn't
break the build on architectures/platforms where it's not available.

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