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  1. Harmony
  2. HARMONY-5488

[classlib][nio] Scatter/gather calls should use OS functionality

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • Classlib
    • None
    • Moderate

    Description

      I just noticed that our NIO implementation of scatter / gather calls (e.g. o.a.h.nio.internal.SocketChannelImpl#write(ByteBuffer[],int,int)) are actually copying the data into a single Java heap buffer before calling the OS! and FileChannelImpl copies into a single direct byte buffer.

      These need to be reimplemented in terms of the OS scatter/gather capabilities to avoid copying.

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        1. Harmony-5488.diff
          3 kB
          Sean Qiu

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          incorporates

          Improvement - An improvement or enhancement to an existing feature or task. HARMONY-6328 [classlib][nio] optimize SocketChannel.write(ByteBuffer[], int, int) by writev

          • Major - Major loss of function.
          • Closed

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              Unassigned Unassigned
              tellison Tim Ellison
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                Created:
                Updated:

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