From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarek Poplawski Subject: Re: rib_trie / Fix inflate_threshold_root. Now=15 size=11 bits Date: Sun, 28 Jun 2009 14:03:28 +0200 Message-ID: <20090628120328.GA2739@ami.dom.local> References: <19012.37515.146191.198843@robur.slu.se> <20090627192057.GA5041@ami.dom.local> <19015.20051.432572.460207@robur.slu.se> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Robert Olsson , =?us-ascii?B?PT9JU08tODg1OS0yP1E/UGF3ZT1CM19TdGFzemV3c2tpPz0=?= , "Jorge Boncompte [DTI2]" , Eric Dumazet , Robert Olsson , Linux Network Development list To: Robert Olsson Return-path: Received: from mail-bw0-f213.google.com ([209.85.218.213]:34242 "EHLO mail-bw0-f213.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750757AbZF1MDh (ORCPT ); Sun, 28 Jun 2009 08:03:37 -0400 Received: by bwz9 with SMTP id 9so2776655bwz.37 for ; Sun, 28 Jun 2009 05:03:39 -0700 (PDT) Content-Disposition: inline In-Reply-To: <19015.20051.432572.460207@robur.slu.se> Sender: netdev-owner@vger.kernel.org List-ID: On Sun, Jun 28, 2009 at 01:04:51PM +0200, Robert Olsson wrote: ... > Yes we keep the old tnode size and the convergence interval was some > of the concerns. That why this checks was added. Still we want to > inflate the root node to a very max. > > So this approach with halving or doubling tnodes towards the root > node was the suggest by Dyntree paper. I asked Stefan (one of the > authors) if we could get safe and very offensive settings. But > from what I understood there was no easy way to calculate this. > So any bright ideas in this area are very welcome. But we should > also monitor size of root and average tree depth so we don't > take an to defensive approach just to solve this case. Yes, but with this offensive approach it seems the current level of warnings could be too alarming. Btw., because of a design flaw in my current patch this _fix variable, which should be logically per trie/ table, can be reset by changes of other tables now, but I think it all could be fine tuned more in the future. Of course if there are people interested in testing/reporting this more. Thanks, Jarek P.