From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 29 Jun 2001 11:23:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 29 Jun 2001 11:22:55 -0400 Received: from [192.48.153.1] ([192.48.153.1]:51818 "EHLO sgi.com") by vger.kernel.org with ESMTP id ; Fri, 29 Jun 2001 11:22:49 -0400 Message-Id: <200106291523.f5TFNhC32686@jen.americas.sgi.com> X-Mailer: exmh version 2.2 06/23/2000 with nmh-1.0.4 To: Dan Kegel cc: "linux-kernel@vger.kernel.org" Subject: Re: O_DIRECT please; Sybase 12.5 In-Reply-To: Message from Dan Kegel of "Fri, 29 Jun 2001 02:39:00 PDT." <3B3C4CB4.6B3D2B2F@kegel.com> Date: Fri, 29 Jun 2001 10:23:43 -0500 From: Steve Lord Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org XFS supports O_DIRECT on linux, has done for a while. Steve > At work I had to sit through a meeting where I heard > the boss say "If Linux makes Sybase go through the page cache on > reads, maybe we'll just have to switch to Solaris. That's > a serious performance problem." > All I could say was "I expect Linux will support O_DIRECT > soon, and Sybase will support that within a year." > > Er, so did I promise too much? Andrea mentioned O_DIRECT recently > ( http://marc.theaimsgroup.com/?l=linux-kernel&m=99253913516599&w=2, > http://lwn.net/2001/0510/bigpage.php3 ) > Is it supported yet in 2.4, or is this a 2.5 thing? > > And what are the chances Sybase will support that flag any time > soon? I just read on news://forums.sybase.com/sybase.public.ase.linux > that Sybase ASE 12.5 was released today, and a 60 day eval is downloadable > for NT and Linux. I'm downloading now; it's a biggie. > > It supports raw partitions, which is good; that might satisfy my > boss (although the administration will be a pain, and I'm not > sure whether it's really supported by Dell RAID devices). > I'd prefer O_DIRECT :-( > > Hope somebody can give me encouraging news. > > Thanks, > Dan > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >