Date: Wed, 26 Nov 1997 09:19:41 +0100 From: Manfred Brands <m.brands@fugro-intersite.nl> To: Davi Antunes Lima <davi@tba.com.br> Cc: AIC7xxx@FreeBSD.ORG Subject: Re: Gigabyte DX586 and Quantum Fireball TM3200 Message-ID: <347BDB9D.7C65A8D0@fugro-intersite.nl> References: <Pine.LNX.3.95.971126043625.937B-100000@localhost>
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Davi Antunes Lima wrote: > On Tue, 25 Nov 1997, Eric Geyer wrote: > > > > > On 25-Nov-97 Holger Bauer wrote: > > > Hi, > > > > > > just subscribed to this list since I am not sure if the result of > my > > > hdparm -t /dev/sda1 > > > .................... 2.95 MByte/s > > > > > > Could anybody with a Adaptec 2940 (7880) and a Quantum Fireball TM > > > > series disk send me his results on > > > hdparm -tT /dev/sdXX > > > > > > ? > > > > > > After that I might complain to Quantum. Maybe anybody on this list > who > > > could test the Fireball w/ some other controller? > > salsa: /home/davi# hdparm -tT /dev/sda1 > > /dev/sda1: > Timing buffer-cache reads: 32 MB in 1.25 seconds =25.60 MB/sec > Timing buffered disk reads: 16 MB in 5.74 seconds = 2.79 MB/sec > > I have that same figures, as you can see. It was unbelievable for me > at > first, but unfortunately the fireball is neither fast nor reliable. I > intend to change the hole thing for a buslogic adapter and a western > digital disk (7200 rpm). > > Davi My Gigabyte motherboard with dual pentium 166MHz MMX and an onboard 7880 does much better than this. The figures below are rough estimates as I don't have the computer here at work. The original 2.0.30 kernel, did about 8MB/s, I had to specify aic7xxx=ultra, to get 20.0MB/s bus speed. Tagged queueing was disabled. The latest 2.0.32 kernel, with tagged queuing enabled, does 'only' 6.7MB/s, still considerably more than the figures you quoted. Manfred.
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