From owner-freebsd-current@FreeBSD.ORG Thu Jul 7 07:04:44 2011 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4BE021065675 for ; Thu, 7 Jul 2011 07:04:44 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from citadel.icyb.net.ua (citadel.icyb.net.ua [212.40.38.140]) by mx1.freebsd.org (Postfix) with ESMTP id 4B1A68FC12 for ; Thu, 7 Jul 2011 07:04:43 +0000 (UTC) Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua [212.40.38.100]) by citadel.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id KAA13473; Thu, 07 Jul 2011 10:04:37 +0300 (EEST) (envelope-from avg@FreeBSD.org) Received: from localhost ([127.0.0.1]) by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD)) id 1QeidZ-00092h-Ab; Thu, 07 Jul 2011 10:04:37 +0300 Message-ID: <4E155A84.1010100@FreeBSD.org> Date: Thu, 07 Jul 2011 10:04:36 +0300 From: Andriy Gapon User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.18) Gecko/20110626 Lightning/1.0b2 Thunderbird/3.1.11 MIME-Version: 1.0 To: Steve Kargl References: <4E1421D9.7080808@zedat.fu-berlin.de> <4E147F54.40908@zedat.fu-berlin.de> <20110706162811.GA68436@troutmask.apl.washington.edu> <20110706193636.GA69550@troutmask.apl.washington.edu> <4E14CCE5.4050906@zedat.fu-berlin.de> <20110707015151.GB71966@troutmask.apl.washington.edu> <20110707031151.GA72452@troutmask.apl.washington.edu> In-Reply-To: <20110707031151.GA72452@troutmask.apl.washington.edu> X-Enigmail-Version: 1.1.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Adrian Chadd , FreeBSD Current , "Hartmann, O." , arrowdodger <6yearold@gmail.com>, Arnaud Lacombe Subject: Re: Heavy I/O blocks FreeBSD box for several seconds X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Jul 2011 07:04:44 -0000 on 07/07/2011 06:11 Steve Kargl said the following: > Unfortunately, I have neither the brain capacity and time nor > the money to fix the issue. To solve OP's problem in the > short, the simplest solution may be to switch to 4BSD. Let's > face, ULE is not a silver bullet. I think that piling up different problems into a single discussion, even if they involve a common component (to a certain degree), is not going to help anybody. If I have read this thread correctly (and taking the subject line as a witness) the OP had a problem with heavy I/O activity screwing up interactivity. I think that it's not the same problem as sub-optimal performance of heavy CPU-bound load, which is what you reported if I am not mistaken. -- Andriy Gapon