disk benchmarks & linux

Larry McVoy (lm@linux.cobaltmicro.com)
Sat, 13 Sep 1997 22:31:21 -0700

So I'm polishing up yet another whizzy benchmark and I'm getting screwed,
somewhat, by the fact that Linux doesn't have raw devices so the buffer
cache can throw me off when I'm doing I/O on /dev/sda or something similar.

Is there any way to force the data out of the cache other than to try and
use up all of memory?