Regis Xu (JIRA) wrote:
[classlib][nio] optimize SocketChannel.write(ByteBuffer[], int, int) by writev ------------------------------------------------------------------------------Key: HARMONY-6328 URL: https://issues.apache.org/jira/browse/HARMONY-6328 Project: Harmony Issue Type: Improvement Components: Classlib Affects Versions: 5.0M11 Reporter: Regis Xu SocketChannel.write(ByteBuffer[], int, int) can be optimized by using writev, which can write an array of buffer to socket without any stage buffer. If all passed in ByteBuffer is direct buffer, they can be passed to system call directly without any copies.
I tested the patch on Windows, Linux and AIX, nio tests are all passed. I know someone (Oliver, Kevin and Ray) are working on z/OS, I'm not sure whether writev will work on it, so it would be great if someone can test the patch on z/OS before committing it.
And also, any comments and suggestions about this improvement are welcome :) -- Best Regards, Regis.
