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Posted to dev@hbase.apache.org by "Becker Ewing (Jira)" <ji...@apache.org> on 2023/08/14 22:02:00 UTC

[jira] [Created] (HBASE-28025) Enhance ByteBufferUtils.findCommonPrefix to compare 8 bytes each time

Becker Ewing created HBASE-28025:
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             Summary: Enhance ByteBufferUtils.findCommonPrefix to compare 8 bytes each time
                 Key: HBASE-28025
                 URL: https://issues.apache.org/jira/browse/HBASE-28025
             Project: HBase
          Issue Type: Improvement
          Components: Performance
    Affects Versions: 2.5.4
            Reporter: Becker Ewing


Currently, the `ByteBufferUtils.findCommonPrefix family of methods compare two buffers a single byte at a time. In reviewing the patch for HBASE-28012, [~zhangduo] suggested that the ByteBufferUtils.findCommonPrefix methods could be enhanced to compare 8 bytes at a time like the ByteBufferUtils.compareToUnsafe family of methods already does (which was added in HBASE-12345)



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