From owner-freebsd-stable@FreeBSD.ORG Tue May 29 20:55:29 2012 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E5B9610657C2; Tue, 29 May 2012 20:55:29 +0000 (UTC) (envelope-from kjkoster@gmail.com) Received: from mail-we0-f182.google.com (mail-we0-f182.google.com [74.125.82.182]) by mx1.freebsd.org (Postfix) with ESMTP id 4E3F68FC08; Tue, 29 May 2012 20:55:29 +0000 (UTC) Received: by werg1 with SMTP id g1so3771359wer.13 for ; Tue, 29 May 2012 13:55:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=subject:mime-version:content-type:from:in-reply-to:date:cc :content-transfer-encoding:message-id:references:to:x-mailer; bh=UunPDw3341BTYXNaTU9RWATztyNKz+fG8aTCZr/ogJ8=; b=wQ+DdNLjtHc7Va6x5Gqrh82Ml3sK/75oWyfmx2CZpcZ3+tjb82I3DUcOaeEwadUlGq btQ0B9d+LicjLzd9P79Rb70wm1qZuEgFjWKPfkGmItUO5guXqk0JkNGiUyOCBiVovFt7 cxfJr5P0hDBxWPQc9gxBZ0a0ZM3MBJ545/Wo+K0Lm64G1UKKlyINeRvdozKyuWfnJ2mv XTtAXKV1eptMeMBv2JoNP46rf7KYQq1qOf7Db8wMVE0kDamVYe4yWWrx6MnTy8DvZ3Yd mRNMTn0av59jwWNtY4uPqxf1M3omBaJ/6f4snJRi8cam2za5JRBfbZbkm+rQCm4c4LpP HOqg== Received: by 10.216.193.80 with SMTP id j58mr8308532wen.96.1338324928193; Tue, 29 May 2012 13:55:28 -0700 (PDT) Received: from kees-jan-kosters-macbook-air.fritz.box (kjkoster.org. [83.163.197.206]) by mx.google.com with ESMTPS id gv4sm48531692wib.8.2012.05.29.13.55.27 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 29 May 2012 13:55:27 -0700 (PDT) Mime-Version: 1.0 (Apple Message framework v1278) Content-Type: text/plain; charset=iso-8859-1 From: Kees Jan Koster In-Reply-To: <4FC5244C.5090502@FreeBSD.org> Date: Tue, 29 May 2012 22:55:27 +0200 Content-Transfer-Encoding: quoted-printable Message-Id: References: <4FC5244C.5090502@FreeBSD.org> To: Doug Barton X-Mailer: Apple Mail (2.1278) Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 9.0 hangs on heavy I/O 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, 29 May 2012 20:55:30 -0000 Dear Doug, >> I seem to have a problem where really heavy disk I/O is drowning my = machine. >=20 > Assuming you're using the default scheduler (SCHED_ULE), try switching > to the 4BSD scheduler in your kernel config file and see if that = helps. I will, thanks for the suggestion. -- Kees Jan http://java-monitor.com/ kjkoster@kjkoster.org +31651838192 Change is good. Granted, it is good in retrospect, but change is good.