From owner-freebsd-hardware@FreeBSD.ORG Sat Oct 28 00:50:18 2006 Return-Path: X-Original-To: hardware@freebsd.org Delivered-To: freebsd-hardware@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EE23D16A403 for ; Sat, 28 Oct 2006 00:50:18 +0000 (UTC) (envelope-from ps@freebsd.org) Received: from elvis.mu.org (elvis.mu.org [192.203.228.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id C2BA943D53 for ; Sat, 28 Oct 2006 00:50:18 +0000 (GMT) (envelope-from ps@freebsd.org) Received: from [10.1.4.159] (unknown [157.22.41.4]) by elvis.mu.org (Postfix) with ESMTP id AB8DB1A4D83; Fri, 27 Oct 2006 17:50:18 -0700 (PDT) Message-ID: <4542A948.5080809@freebsd.org> Date: Fri, 27 Oct 2006 17:50:16 -0700 From: Paul Saab User-Agent: Mail/News 1.5.0.2 (Macintosh/20060324) MIME-Version: 1.0 To: Mike Jakubik References: <45429B67.4020500@rogers.com> In-Reply-To: <45429B67.4020500@rogers.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: hardware@freebsd.org Subject: Re: GIANT-FREE ciss X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Oct 2006 00:50:19 -0000 I did experiments and found that ciss did not gain any thing by making it MPSAFE. This may have changed with newer cards, but with all the older cards, there was no gain. Mike Jakubik wrote: > Are there any plans/work to make a giant-less ciss driver? Its a > fairly popular driver that is used on some high end systems, and many > systems now are running in SMP mode. Its a shame that they have to > endure the performance penalty of the GIANT lock. > > _______________________________________________ > freebsd-hardware@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hardware > To unsubscribe, send any mail to > "freebsd-hardware-unsubscribe@freebsd.org" >