From owner-freebsd-questions Wed Jan 9 2:45:59 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mustard.heime.net (mustard.heime.net [194.234.65.222]) by hub.freebsd.org (Postfix) with ESMTP id D83C937B405 for ; Wed, 9 Jan 2002 02:45:53 -0800 (PST) Received: from localhost (roy@localhost) by mustard.heime.net (8.11.6/8.9.3) with ESMTP id g09Ajqe06140 for ; Wed, 9 Jan 2002 11:45:52 +0100 Date: Wed, 9 Jan 2002 11:45:52 +0100 (CET) From: Roy Sigurd Karlsbakk X-Sender: To: Subject: Re: Increasing readahead on IDE drives In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Can anyone help me here? On Mon, 7 Jan 2002, Roy Sigurd Karlsbakk wrote: > 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 > -- 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