Date: Wed, 3 May 1995 09:58:14 -0700 From: "Garrett A. Wollman" <wollman> To: CVS-commiters, cvs-libexec Subject: cvs commit: src/libexec/ftpd ftpd.c Message-ID: <199505031658.JAA04851@freefall.cdrom.com>
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wollman 95/05/03 09:58:13
Modified: libexec/ftpd ftpd.c
Log:
Speed up ftpd and make it more efficient:
- set TCP_NOPUSH to keep from sending short packets at each write(2) boundary
- set SO_SNDBUF to 64k so we have a reasonable amount of buffer space
- for a regular file in binary mode which is not being restarted and is
. smaller than 16 Meg, use mmap(2) and write(2) the whole file in one big
gulp
In the most common circumstances, this should dramatically reduce the
system-call load from ftpd, since the call to write() will not return until
the entire file has been written, rather than writing just a few K at a time
in a loop.
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