Date: Tue, 27 Nov 2001 17:39:08 +0200 From: Sheldon Hearn <sheldonh@starjuice.net> To: Matthew Dillon <dillon@apollo.backplane.com> Cc: David Greenman <dg@root.com>, Kirk McKusick <mckusick@beastie.mckusick.com>, freebsd-arch@FreeBSD.ORG Subject: Re: Using a larger block size on large filesystems Message-ID: <82580.1006875548@axl.seasidesoftware.co.za> In-Reply-To: Your message of "Mon, 26 Nov 2001 16:07:48 PST." <200111270007.fAR07mZ85526@apollo.backplane.com>
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On Mon, 26 Nov 2001 16:07:48 PST, Matthew Dillon wrote: | Not to mention the increased memory capacity in modern machines. | When you put it together, we ought to see only small differences | in regards to random seek+read performance. That's encouraging. | I've included the program below.. it would be cool if people | with RAID systems could run the same tests. I'm almost finished with my batch of postmark benchmarks and will try your program next. Postmark seems to reflect MTA-like access patterns very accurately. Postmark shows my Mylex eXtremeRAID + 15Krpm storage as about 3 times faster than my Compaq SmartArray + 10Krpm storage, and Exim shows a corresponding performance increase approaching a factor of 3. Can we rely on your program to be similarly reflective of a RDBMS-like access patterns? Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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