CVS commit: syssrc/sys

[Jason R Thorpe <thorpej%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   thorpej
Date:           Thu May  2 17:55:52 UTC 2002

Modified Files:
        syssrc/sys/conf: files
        syssrc/sys/kern: uipc_socket.c
        syssrc/sys/sys: socketvar.h

Log Message:
Add some experimental page-loaning for writes on sockets.  It is disabled
by default, and can be enabled by adding the SOSEND_LOAN option to your
kernel config.  The SOSEND_COUNTERS option can be used to provide some
instrumentation.

Use of this option, combined with an application that does large enough
writes, gets us zero-copy on the TCP and UDP transmit path.


To generate a diff of this commit:
cvs rdiff -r1.523 -r1.524 syssrc/sys/conf/files
cvs rdiff -r1.63 -r1.64 syssrc/sys/kern/uipc_socket.c
cvs rdiff -r1.50 -r1.51 syssrc/sys/sys/socketvar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.