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SubjectLinux TCP performance fix for short messages
FYI: 

An explanation on how a simple patch can boost Linux TCP bandwidth by
a factor of 20 for short messages (short means <500 bytes in kernel
2.0.36, <100 bytes in kernel 2.2.2).

http://www.icase.edu/coral/LinuxTCP.html

The performance fix involves turning off delayed ACKs on highly
interactive links where TCP_NODELAY socket option is desirable.
This is particularly applicable to parallel applications using MPI.

Sincerely,
Josip

--
Dr. Josip Loncaric, Senior Staff Scientist mailto:josip@icase.edu
ICASE, Mail Stop 403 http://www.icase.edu/~josip/
NASA Langley Research Center mailto:j.loncaric@larc.nasa.gov
Hampton, VA 23681-2199, USA Tel. +1 757 864-2192 Fax +1 757 864-6134

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