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  1. Hadoop Common
  2. HADOOP-6672

BytesWritable.write(buf) use much more CPU in writeInt() then write(buf)

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Duplicate
    • 0.20.2
    • None
    • io
    • hadoop io BytesWritable

    Description

      BytesWritable.write() use nearly 4 times of CPU in wirteInt() as write buffer. It may be optimized.

      Attachments

        1. BytesWritable.java.patch
          0.9 kB
          Kang Xiao
        2. screenshot-1.jpg
          108 kB
          Kang Xiao
        3. screenshot-2.jpg
          54 kB
          Kang Xiao

        Issue Links

          duplicates

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-5664 Use of ReentrantLock.lock() in MapOutputBuffer takes up too much cpu time

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            People

              Unassigned Unassigned
              xiaokang Kang Xiao
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              Dates

                Created:
                Updated:
                Resolved: