Date: Fri, 08 Mar 2002 15:16:46 -0700 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: Eric Dantan Rzewnicki <rzewnickie@rfa.org> Cc: aic7xxx@FreeBSD.org, network@rfa.org Subject: Re: performance issues: linux aic7xxx, 29160, Radion IFT-7200 Message-ID: <200203082216.g28MGkI80050@aslan.scsiguy.com> In-Reply-To: Your message of "Fri, 08 Mar 2002 15:07:57 EST." <3C891A1D.D757AC00@rfa.org>
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>Hello Justin, > >We are experiencing some performance issues with our external Radion >raid device and the "new" aic7xxx drivers in linux kernel 2.4.x when >compared with either 2.2.x kernels or 2.4.x kernels using the >aic7xxx_old driver. Our hardware: My guess is that your Radion does not like high queue depths. Try lowering the queue depth of the aic7xxx driver (8 was the default in the old driver, the new driver will do up to 254). -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message
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