From owner-freebsd-stable@FreeBSD.ORG Tue May 24 18:39:25 2005 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8EE3316A41C for ; Tue, 24 May 2005 18:39:25 +0000 (GMT) (envelope-from martinkov@pobox.sk) Received: from smtp.dkm.cz (smtp.dkm.cz [62.24.64.34]) by mx1.FreeBSD.org (Postfix) with SMTP id B0D4D43D4C for ; Tue, 24 May 2005 18:39:24 +0000 (GMT) (envelope-from martinkov@pobox.sk) Received: (qmail 10870 invoked by uid 0); 24 May 2005 18:39:23 -0000 Received: from r4aq181.chello.upc.cz (HELO ?84.42.170.181?) (84.42.170.181) by smtp.dkm.cz with SMTP; 24 May 2005 18:39:23 -0000 Message-ID: <429374DB.90407@pobox.sk> Date: Tue, 24 May 2005 20:39:23 +0200 From: martinko User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.8) Gecko/20050520 X-Accept-Language: sk, cs, en-gb, en-us, en MIME-Version: 1.0 To: freebsd-stable@freebsd.org References: In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: Kris Kennaway Subject: Re: Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 24 May 2005 18:39:25 -0000 Kris Kennaway wrote: > > Also try defining PREEMPTION in your kernel on 5.x and above (if you > are running i386 or amd64). There have been very occasional reports > of panics with this option enabled (although I use it everywhere and > have not seen problems on my heavily loaded machines), but interactive > response should be much better. > kris, i cannot find (a description of) PREEMPTION in NOTES or GENERIC (on 5.4 on i386). am i missing something? cheers, martin