Date: Mon, 7 Jan 2002 17:52:56 +0100 (CET) From: Roy Sigurd Karlsbakk <roy@karlsbakk.net> To: <freebsd-questions@FreeBSD.ORG> Subject: Increasing readahead on IDE drives Message-ID: <Pine.LNX.4.30.0201071748470.12884-100000@mustard.heime.net>
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hi I'm currently doing some testing, where I read ~ 100 files simuntanously from disk. The disks are two 120G ATA100 drives in RAID-0 with ileave == 8192 (this is 4 megs, right?). I want to do a 4 meg readahead per file, so I can avoid disk seeks. I`ve done this in Linux, and wondered if I can do the same in FreeBSD. On my linux server with identical hardware, I can do ~50MB/s on this configuration, whereas I currently can't get more than around 10MB/s on FreeBSD. Thanks for any help roy -- Roy Sigurd Karlsbakk, MCSE, MCNE, CLS, LCA Computers are like air conditioners. They stop working when you open Windows. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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