From owner-freebsd-current@FreeBSD.ORG Tue Sep 11 20:32:50 2007 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C144116A46B for ; Tue, 11 Sep 2007 20:32:50 +0000 (UTC) (envelope-from uspoerlein@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.190]) by mx1.freebsd.org (Postfix) with ESMTP id 5E7B613C480 for ; Tue, 11 Sep 2007 20:32:44 +0000 (UTC) (envelope-from uspoerlein@gmail.com) Received: by nf-out-0910.google.com with SMTP id b2so1301304nfb for ; Tue, 11 Sep 2007 13:32:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:received:received:date:from:to:cc:subject:message-id:mail-followup-to:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; bh=/yEXmimLtQO0gnx+yN66gA5SYdhSxBHYl1dalmrqVLc=; b=qRuUXZ4FYHGVVRRP6y1QAwfJ6U32BveoFQBkYHsX8IdbIyIywhjCDhxiC0iYz9wIlMVqmZ2KHJ2oZ0sUTBvxoew64yJO7i3cLog/4vFhjL/gk93BbjO54JEfs+DkwOciyqibmNy33kr6OHhJ/7IHTQOR9KqDdK6y0hjyG5s2XLI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:from:to:cc:subject:message-id:mail-followup-to:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; b=IRt/HK52uevs5ZhNovffYbiNbFEAvCG3n9hq9NX3KVXIVi1pkDVjj0VDZQzpPlUQfB+2aRboGnzuMdwFrOzyz72RzN1bs1OUk0ufvYVNncXD3Cxtpb+44T7BNIHauSJ7TNzIpH+4hNx6o3cae+MiBSE3O6azVSEmgQC4vi7EaDM= Received: by 10.86.93.17 with SMTP id q17mr4852509fgb.1189542763789; Tue, 11 Sep 2007 13:32:43 -0700 (PDT) Received: from roadrunner.spoerlein.net ( [85.180.137.211]) by mx.google.com with ESMTPS id m1sm11352343fke.2007.09.11.13.32.42 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 11 Sep 2007 13:32:43 -0700 (PDT) Received: from roadrunner.spoerlein.net (localhost [127.0.0.1]) by roadrunner.spoerlein.net (8.14.1/8.14.1) with ESMTP id l8BKWeLv034786; Tue, 11 Sep 2007 22:32:40 +0200 (CEST) (envelope-from uspoerlein@gmail.com) Received: (from q@localhost) by roadrunner.spoerlein.net (8.14.1/8.14.1/Submit) id l8BKWd7D034785; Tue, 11 Sep 2007 22:32:39 +0200 (CEST) (envelope-from uspoerlein@gmail.com) Date: Tue, 11 Sep 2007 22:32:39 +0200 From: Ulrich Spoerlein To: Pawel Jakub Dawidek Message-ID: <20070911203238.GA34761@roadrunner.spoerlein.net> Mail-Followup-To: Pawel Jakub Dawidek , current@freebsd.org References: <20070906184853.GB90021@roadrunner.spoerlein.net> <20070910195833.GE1103@garage.freebsd.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070910195833.GE1103@garage.freebsd.pl> User-Agent: Mutt/1.5.16 (2007-06-09) Cc: current@FreeBSD.org Subject: Re: ZFS not caching right? 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: Tue, 11 Sep 2007 20:32:50 -0000 On Mon, 10.09.2007 at 21:58:33 +0200, Pawel Jakub Dawidek wrote: > On Thu, Sep 06, 2007 at 08:48:53PM +0200, Ulrich Spoerlein wrote: > > ever since I switched my /usr and /home to ZFS, the system has become > > _very_ unresponsive under load. This is not because of CPU load, but I/O > > load. > Can you try recent HEAD? I committed a change that allows ZFS cache > (ARC) to use more memory. This should be safe after dfr@'s vnode leak > fix and should also help performance. Looks much better now, though I'd like to observe for a couple more days. I'll report back, if there's still an issue. Thanks for the quick fix! Cheers, Ulrich Spoerlein -- It is better to remain silent and be thought a fool, than to speak, and remove all doubt.