From owner-freebsd-hackers@FreeBSD.ORG Wed Jul 14 16:27:02 2010 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AD0C7106567D for ; Wed, 14 Jul 2010 16:27:02 +0000 (UTC) (envelope-from jrytoung@gmail.com) Received: from mail-ww0-f50.google.com (mail-ww0-f50.google.com [74.125.82.50]) by mx1.freebsd.org (Postfix) with ESMTP id 41CEA8FC24 for ; Wed, 14 Jul 2010 16:27:01 +0000 (UTC) Received: by wwc33 with SMTP id 33so1409945wwc.31 for ; Wed, 14 Jul 2010 09:27:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:cc:content-type; bh=YmW54gwNAz67MEkPiwsJnDDjH6//iPHkbqtXoyDt2To=; b=kJVcSd94IF9gm9lb6GGtZcKGHIBObvvmnMy5vq0JHZVuIgKFzC1CGNsgIZRt+4oncX Az9WDZcwW35VNG39aKYjTMhZP5fYPGvSmjXNCB2YjDqZiDQy08cROAe69Bora3cKdDUp 8n35GCAApMXTB3rbpyHk2OIhRrDQWJ7RtqQfI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=vWQz7ITpDPnE8mRk1pEf63xY3egT+ZfXFKSAINOjxRKLI1bdFdQlV7dlalzD+7oy9w 5FmjeVHVqi0JYfWzGWr53q2GHv2TNGSaUkm9VdikFNI1BT6tEjhYfMoYZob5SJk9k2C3 MRS+2Zg3G9YcJGkVIDF+X7of/GeNQzHcpSgCU= MIME-Version: 1.0 Received: by 10.227.138.5 with SMTP id y5mr2348902wbt.204.1279124821014; Wed, 14 Jul 2010 09:27:01 -0700 (PDT) Received: by 10.216.68.4 with HTTP; Wed, 14 Jul 2010 09:27:00 -0700 (PDT) In-Reply-To: <20100714090454.1177b96b@ernst.jennejohn.org> References: <20100714090454.1177b96b@ernst.jennejohn.org> Date: Wed, 14 Jul 2010 09:27:00 -0700 Message-ID: From: Jerry Toung To: gljennjohn@googlemail.com Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-hackers@freebsd.org Subject: Re: disk I/O, VFS hirunningspace X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Jul 2010 16:27:02 -0000 On Wed, Jul 14, 2010 at 12:04 AM, Gary Jennejohn wrote: > > > Rather than commenting out the code try setting the sysctl > vfs.hirunningspace to various powers-of-two. Default seems to be > 1MB. I just changed it on the command line as a test to 2MB. > > You can do this in /etc/sysctl.conf. > > thank you all, that did it. The settings that Matt recommended are giving the same numbers I had with the code commented out. I was concerned that the lock or msleep may be a problem. Jerry