Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 17 Feb 2003 05:25:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 17 Feb 2003 05:25:57 -0500 Received: from mail.zmailer.org ([62.240.94.4]:6555 "EHLO mail.zmailer.org") by vger.kernel.org with ESMTP id ; Mon, 17 Feb 2003 05:25:57 -0500 Date: Mon, 17 Feb 2003 12:35:53 +0200 From: Matti Aarnio To: Mark J Roberts , linux-kernel@vger.kernel.org Subject: Re: Annoying /proc/net/dev rollovers. Message-ID: <20030217103553.GH1073@mea-ext.zmailer.org> References: <20030216221616.GA246@znex> <20030217014111.GA2244@f00f.org> <20030217024605.GB246@znex> <20030217042156.GA2759@f00f.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030217042156.GA2759@f00f.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1211 Lines: 28 On Sun, Feb 16, 2003 at 08:21:56PM -0800, Chris Wedgwood wrote: > On Sun, Feb 16, 2003 at 08:46:05PM -0600, Mark J Roberts wrote: > > When the windows box behind my NAT is using all of my 640kbit/sec > > downstream to download movies, it takes a little over 14 hours to > > download four gigabytes and roll over the byte counter. > > Therefore userspace needs to check the counters more often... say ever > 30s or so and detect rollover. Most of this could be simply > encapsulated in a library and made transparent to the upper layers. Some of my colleques complained once, that at full tilt the fiber-channel fabric overflowed its SNMP bitcounters every 2 seconds. "we need to do polling more rapidly, than the poller can do" The SNMP pollers do handle gracefully 32-bit unsigned overlow, they just need to get snapshots in increments a bit under 2G... (Hmm.. perhaps I remember that wrong, a bit under 4G should be ok.) > --cw /Matti Aarnio - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/