Date: Thu, 16 Mar 2000 09:55:19 -0800 From: "Rob Snow" <rsnow@my-Deja.com> To: freebsd-questions@freebsd.org Subject: Promise Ultra 66 and 4.0-RELEASE Message-ID: <DPOCAAGJDJLIGCAA@my-deja.com>
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I have just moved and am setting up a new home fileserver, an Epox MVP3G super7 board with a AMD K6-2 350 and a pair of Maxtor 30G 7200rpm 9ms 2MB cache drives on a Promise Ultra66 dual channel controller, each drive on it's own channel. My initial test with bonnie (before vinum) showed block writes at 23MB/sec, didn't get the cpu util. Now that I have them striped together I am only seeing 25MB/sec sequential write with over 90% CPU utilization. I have a feeling that I have a problem with UDMA 66 as I feel I should get higher performance and lower CPU utilization. I have rebuilt the kernel with the ATA_DMA option (or some such, got it from LINT). Please advise on suggestions P.S. I've just moved and changed ISP's, please copy this address until I get sorted and have re-subscribed to the lists. Thanks, Rob Snow --== Sent via Deja.com http://www.deja.com/ ==-- Share what you know. Learn what you don't. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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