Date: Sun, 2 Jun 1996 02:47:36 -0600 (MDT) From: Dave Andersen <angio@aros.net> To: freebsd-hackers@freebsd.org Subject: CCD performance tuning Message-ID: <199606020847.CAA15040@terra.aros.net>
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I've been playing around with the ccd (2.1-stable) with two quantum
grand prix 4gb drives, and the performance improvements I've noticed have
been somewhat marginal, if at all. (Performance as measured by bonnie
remains at only about 4.3MB/second with the two drives striped). No
matter how I tune the interleave, I'm unable to increase this value much
-- it remains about the same as that for a single drive. The only thing
that does improve is the seeks/second, and even that isn't an amazing
improvement.
The drives are on an Adaptec 2940UW. P100, triton chipset. Is this
more of a motherboard problme, or a dave-is-being-stupid problem? I'm
afraid I'm not much of a hardware guru, so I may be overlooking something
pretty obvious.
-Dave Andersen
--
angio@aros.net Complete virtual hosting and business-oriented
system administration Internet services. (WWW, FTP, email)
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