From owner-freebsd-questions@FreeBSD.ORG Sat Oct 30 19:24:26 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 81DBB16A4CE for ; Sat, 30 Oct 2004 19:24:26 +0000 (GMT) Received: from dnsmail4.ior.navy.mil (nocc.ior.navy.mil [205.56.210.196]) by mx1.FreeBSD.org (Postfix) with ESMTP id E67CB43D5C for ; Sat, 30 Oct 2004 19:24:21 +0000 (GMT) (envelope-from JohnsoBS@vicksburg.navy.mil) Received: from cg69ubd01.vicksburg.navy.mil ([205.95.65.21]) i9UJLSJ2002407; Sat, 30 Oct 2004 19:21:33 GMT Received: by CG69UBD01 with Internet Mail Service (5.5.2657.72) id ; Sat, 30 Oct 2004 22:27:30 +0300 Message-ID: From: JohnsoBS@vicksburg.navy.mil To: TM4525@aol.com, questions@freebsd.org Date: Sat, 30 Oct 2004 22:27:22 +0300 X-Mailer: Internet Mail Service (5.5.2657.72) Subject: RE: 7520 Chipset support in 4.x X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Oct 2004 19:24:26 -0000 > -----Original Message----- > From: TM4525@aol.com [mailto:TM4525@aol.com] > Sent: Saturday, October 30, 2004 9:13 PM > To: questions@freebsd.org > Subject: Re: 7520 Chipset support in 4.x > > > > > Many of the new MBs from such tiny vendors as Dell and Supermicro > > > are based on the 7520, and word is that FreeBSD 4.x > doesn't support > > > it. Is support forthcoming? > > > > We have 2 Dell PowerEdge 1850 servers which have the e7520 > chipset. They > > hang consistently in 4.10-RELEASE and below whenever there > is high network > > or disk utilization. We have not been able to get any > debugging info. > > After upgrading to 4.10-STABLE a couple of weeks ago, they > no longer hang, > > but they are _really_ slow to perform network and disk operations. > > > > They work fine in FreeBSD 5.3, but unfortunately our > applications do not > > run without recompiling. We do not want to change our environment to > > support different binaries for different machines, and we > don't want to > > use 5.X in production until it is STABLE. > > > > I want to echo the above question. Are there patches available or > > forthcoming to fix the problems with the e7520? > > > > Thanks, > > > > - > > Rob Watt > > I think that we can imply from the lack of response on this > subject that 4.x > is not really still supported, since just about all of the > new motherboards > for Intel processors from leaders Dell and Supermicro are > based on the > 7520. So, ironically, in order to use the newer, faster > processors with > FreeBSD, you have to use the newer, slower version of the O/S. Yikes! Considering 4.x kept getting tweaked all the way to 4.10 where 4.10 is benched even faster than 4.9 in my experiences with the OS, I find it reasonable to assume that new code that hasn't fully matured and been fully adopted by mass may be slower. As in your previous post on the subject, I find it no where near as slow as you have stated. For one who couldn't figure out how to compile without the witness options and various other debug stuff into the kernel and base system, it prolly would be slower. After I took this stuff out of the build my benches were greatly improved, but alas, not to 4.10 speeds. Given time and mass acceptance of the OS which will adopt more coders and patches from people not yet using the OS I would expect it to speed up even more. When you do such a radical swing in codebases and haven't fully tested them, you should expect it.