Date: Wed, 18 Sep 1996 22:28:45 -0400 (EDT) From: Brian Tao <taob@io.org> To: dyson@freebsd.org Cc: FREEBSD-SCSI-L <freebsd-scsi@freebsd.org> Subject: Re: Streamlogic RAID array benchmarks Message-ID: <Pine.NEB.3.92.960918222441.27050m-100000@zap.io.org> In-Reply-To: <199609182231.RAA01314@dyson.iquest.net>
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On Wed, 18 Sep 1996, John S. Dyson wrote: > > If you are running -current (I forgot to check), and since you have > 64MBytes, the buffer cache will help even though it is overrun. The > buffer cache policy is NOT pure LRU, and you will see the effects of > it on a 64MByte system even for a 100MByte benchmark. The tests were done on a 2.2-960801-SNAP system. Regardless, it doesn't hide the fact that the RAID had much lower throughput than the single drive. I going to try reformatting the RAID to level 0 and seeing if not having parity makes a difference (although I might as well save a few thousand dollars and just use ccd at that point). -- Brian Tao (BT300, taob@io.org, taob@ican.net) Senior Systems and Network Administrator, Internet Canada Corp. "Though this be madness, yet there is method in't"
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