Date: Fri, 11 May 2001 10:54:26 +0100 From: simond@irrelevant.org To: Leon Breedt <ljb@devco.net> Cc: freebsd-mobile@freebsd.org Subject: Re: slow IDE performance Message-ID: <20010511105426.A75378@irrelevant.org> In-Reply-To: <20010511112808.E8710@shell.devco.net>; from ljb@devco.net on Fri, May 11, 2001 at 11:28:08AM %2B0200 References: <20010511112808.E8710@shell.devco.net>
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On Fri, May 11, 2001 at 11:28:08AM +0200, Leon Breedt wrote: > Hi, > > I'm not sure if this was already posted, a search didn't turn anything up. > > On my Thinkpad A20m I experienced insane IDE write slowdowns at some point > in updating to 4.3-RC. I could basically do *nothing* while doing large IDE > transfers. This persisted in -RELEASE and -STABLE. > > A quick query of my friendly committer colleague revealed that ATA write > caching was now disabled by default. > > Enabling it in /boot/loader.conf restored my sanity: > > hw.ata.wc="1" I didn't notice any problems with ufs on it, but when I tried using the msdos filesystem without a write cache it crawled :( -- Simon Dick simond@irrelevant.org "Why do I get this urge to go bowling everytime I see Tux?" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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