Howdy,
While reading through the source code for read():
http://cvs.opensolaris.org/source/xref/on/usr/src/uts/common/syscall/rw.c
I came across the following:
/*
168 * Only use bypass caches when the count is large enough
169 */
170 if (bcount < copyout_min_size)
171 auio.uio_extflg = UIO_COPY_CACHED;
172 else
173 auio.uio_extflg = UIO_COPY_DEFAULT;
[ ..... ]
Could someone shed some light on what a bypass cache, and where the
magic value 128k (value of copyout_min_size) comes from?
Thanks,
- Ryan
--
UNIX Administrator
http://daemons.net/~matty
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