Date: Sun, 16 Jan 2000 10:39:35 +0100 From: Achim Patzner <ap@bnc.net> To: current@freebsd.org Subject: Current, XEON and MP performance Message-ID: <20000116103935.A9402@bnc.net>
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I don't know where to ask first (or what to look at) so I'd like some creative guessing by some people closer to the sources... Running the same programs on nearly identically configured -CURRENT kernels on a HP NetServer LH4 (four 550 MHz PIII Xeon with 512MB Cache, supposed to be an INTEL 450NX-based chipset) with one GB RAM and a home-grown ASUS P2-BDS based system (two 450 MHz PIII) with 512 MB RAM I find that the programs (running on the same input data) on the "smaller" machine tend to take only a third of the CPU time they need on the LH4. [Worse: The LH4 behaves like a spoilt brat when it comes to hardware, disliking the Intel EtherExpress that came with it (generating bus mastering problems after bringing it up), having interrupt routing problems with two DEC TULIP based ethernet cards sharing the same IRQ and being picky just which 3C906B-TX it gets plugged in. It's a bitch and I'd like shooting it. Oh yes - HP has been very helpful, telling me that I was at least 10 years behind wanting to run a BSD and that only WinNT, HP-Sux and Linux were supported on this hardware.] Back to the topic: Are there any reasons for these observations? If someone liked taking a closer look at it I could provide them with access to the machine (and its console). I ran out of clues... Achim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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