From owner-freebsd-stable@FreeBSD.ORG Wed Dec 19 16:31:10 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 073F516A419 for ; Wed, 19 Dec 2007 16:31:10 +0000 (UTC) (envelope-from ups@freebsd.org) Received: from smtpauth02.prod.mesa1.secureserver.net (smtpauth02.prod.mesa1.secureserver.net [64.202.165.182]) by mx1.freebsd.org (Postfix) with SMTP id C8A4013C45A for ; Wed, 19 Dec 2007 16:31:09 +0000 (UTC) (envelope-from ups@freebsd.org) Received: (qmail 32630 invoked from network); 19 Dec 2007 16:04:29 -0000 Received: from unknown (66.23.216.53) by smtpauth02.prod.mesa1.secureserver.net (64.202.165.182) with ESMTP; 19 Dec 2007 16:04:28 -0000 Message-ID: <4769410E.3050005@freebsd.org> Date: Wed, 19 Dec 2007 11:04:30 -0500 From: Stephan Uphoff User-Agent: Thunderbird 2.0.0.9 (Macintosh/20071031) MIME-Version: 1.0 To: David G Lawrence References: <20071217102433.GQ25053@tnn.dglawrence.com> <20071220011626.U928@besplex.bde.org> <20071219154856.GC25053@tnn.dglawrence.com> In-Reply-To: <20071219154856.GC25053@tnn.dglawrence.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org, Bruce Evans Subject: Re: Packet loss every 30.999 seconds 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: Wed, 19 Dec 2007 16:31:10 -0000 David G Lawrence wrote: >> Try it with "find / -type f >/dev/null" to duplicate the problem almost >> instantly. >> > > FreeBSD used to have some code that would cause vnodes with no cached > pages to be recycled quickly (which would have made a simple find > ineffective without reading the files at least a little bit). I guess > that got removed when the size of the vnode pool was dramatically > increased. > You can decrease vfs.wantfreevnodes if caching files without cached data is not beneficial for your application. > -DG > > David G. Lawrence > President > Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500 > The FreeBSD Project - http://www.freebsd.org > Pave the road of life with opportunities. > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > > >