Date: Fri, 1 Dec 2000 08:50:34 -0800 (PST) From: Jin Guojun (DSD staff) <jin@george.lbl.gov> To: hardware@freebsd.org Subject: high bandwidth I/O motherboard (any recommendation?) Message-ID: <200012011650.eB1GoYi11345@portnoy.lbl.gov>
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Even the PCI spec. says 32-bit/33MHz PCI bus should have 132MBps I/O bandwidth, but none of these 32-bit/33MHz PCI chipset (Intel or VIA) can give that high I/O bandwidth. The best I/O bandwidth I have seen is about 60MBps under FreeBSD 4.2. I am not sure if this is limited by the memory controller or the PCI bus controller. (I don't think the O.S. can control this bandwidth.) The newest PCI chipsets I have tested are: Intel 810/815e + 82801AA/82801BA VIA VT82C694X + VT82C686A/VT82C686B Any comments/suggestion on which motherboard can give 120MBps I/O bandwidth? Thanks, -Jin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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