Date: Fri, 23 Mar 2001 09:29:48 -0600 (CST) From: Robert Johannes <rjohanne@piper.hamline.edu> To: freebsd-scsi <scsi@FreeBSD.ORG> Subject: Understanding Bonnie results; Message-ID: <Pine.GSO.4.21.0103230919380.15257-100000@mendeleev.hamline.edu>
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On linux, I can run hdparm -t to get roughly the transfer rate of a disk in megabytes per second. I have a disk that does 14.6 megabytes per second in linux using the symbios driver. I've run bonnie on my freebsd box, and I need help interpreting the results. What is the result-equivalent of running hdparm -t in bonnie? How do I run bonnie against a specific disk? Ultimately, the reason I'm interested in this is because I suspect my drive is actually slower in freebsd; it is a seagate barracuda attached to a tekram DC-390U2B, and using the sym driver. I notice that disk label reports that the drive is 3600rpm drive, when it is actually 7200rpm; is the fact that disklabel see it at 3600rpm affect the actual performance of the drive? If I need to change this, how do I do it? I have read the manpage for disklabel, but I can't put together a command line of what to type to change the rpm of a disk drive. Any help or pointers appreciated. Thanks robert To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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