Date: Fri, 17 May 1996 23:32:13 -0700 From: "Amancio Hasty Jr." <hasty@rah.star-gate.com> To: "Michael L. VanLoon -- HeadCandy.com" <michaelv@HeadCandy.com> Cc: Charles Henrich <henrich@crh.cl.msu.edu>, freebsd-hackers@freebsd.org Subject: Re: Funky Micron PP200 problems under 2.1 Message-ID: <199605180632.XAA01529@rah.star-gate.com> In-Reply-To: Your message of "Fri, 17 May 1996 19:15:53 PDT." <199605180215.TAA21785@MindBender.HeadCandy.com>
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> > >On another note, anyone know where I might find a test program to see if the > >PCI chipset in this PP200 can sustain more than 5mb/sec ? > > If it doesn't, it's _severly_ broken. > > PCI is supposed to be capable of up to 133MB/s (~33MHz * 32-bits). Cough.... It has been known for a while now that the PCI chipset on the PPro has had it shares of problems and one of them being if memory does not fail me that writes to the PCI bus are limited to 5MB/sec. Now, back to the original question. Try to measure your disk thruput with something like iozone and have something that dumps lots of data on the screen like an mpeg movie. In my case over here is easy I just try to watch tv with my matrox meteor video capture board and if I can't watch tv at 640x480x32 well then the PCI bus can't handle 37mb/sec 8) Amancio
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