Date: Thu, 19 Jun 2003 07:37:25 -0500 From: Eric Anderson <anderson@centtech.com> To: s_porotnikov@nojabrsk.ru Cc: freebsd-performance@freebsd.org Subject: Re: freebsd-performance Digest, Vol 4, Issue 9 Message-ID: <3EF1AE85.2080505@centtech.com> References: <741132145421.20030619172208@nojabrsk.ru>
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s_porotnikov@nojabrsk.ru wrote: > I tested software RAID 0 via VINUM on FreeBSD 5.1 three hard drive IBM > Ultrastor IC35L073VCD210 connected to onboard Adaptec dual chanel AIC-7899W > based controller (64 bit 66MHz PCI), and compared them to Adaptec 2100 RAID > controller (32 bit 33MHz PCI). The performance hardware RAID is appeared > on 15 % less than VINUM. CPU usage is same. > Test utils are rawio and dd with many fork process (8). > The CPU are Xeon 2.4 GHz, SuperMicro MB P4DP6Q with Intel E7500 Chipset. Interestingly enough, I found FreeBSD 4.8 to be faster at local disk writes than FreeBSD 5.1. About 50% faster. Eric -- ------------------------------------------------------------------ Eric Anderson Systems Administrator Centaur Technology Attitudes are contagious, is yours worth catching? ------------------------------------------------------------------
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