From owner-freebsd-current Wed Mar 3 14:25:56 1999 Delivered-To: freebsd-current@freebsd.org Received: from axl.noc.iafrica.com (axl.noc.iafrica.com [196.31.1.175]) by hub.freebsd.org (Postfix) with ESMTP id 3222514DD2 for ; Wed, 3 Mar 1999 14:24:22 -0800 (PST) (envelope-from sheldonh@axl.noc.iafrica.com) Received: from sheldonh (helo=axl.noc.iafrica.com) by axl.noc.iafrica.com with local-esmtp (Exim 2.12 #1) id 10IK3M-000J5s-00; Thu, 4 Mar 1999 00:23:44 +0200 From: Sheldon Hearn To: chris@calldei.com Cc: freebsd-current@freebsd.org Subject: Re: ata1: unwanted interrupt In-reply-to: Your message of "Wed, 03 Mar 1999 16:06:19 CST." <19990303160619.A705@holly.dyndns.org> Date: Thu, 04 Mar 1999 00:23:44 +0200 Message-ID: <73399.920499824@axl.noc.iafrica.com> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Wed, 03 Mar 1999 16:06:19 CST, Chris Costello wrote: > After having CVSupped to the latest 4.0-CURRENT tree > (just now), I noticed the amazing speed of the new ATA driver. The amazing speed of the new ATA driver? Were you using 32 bit transfers and multi-sector IO with the older driver? I assumed from the benchmarks posted that I had no reason to feel alarmed about the fact that the new driver offered no tangible performance increase. My understanding was that we'd "feel it" when DMA transfers were enabled for those drives that support them. Am I confused (yet again)? Ciao, Sheldon. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message