From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH 03/16] tcp: Maintain dynamic metrics in local cache. Date: Tue, 10 Jul 2012 08:33:06 -0700 (PDT) Message-ID: <20120710.083306.1003488340031629044.davem@davemloft.net> References: <20120710.080714.2272376193166978850.davem@davemloft.net> <1341934298.3265.5514.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: eric.dumazet@gmail.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:38637 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751661Ab2GJPdH (ORCPT ); Tue, 10 Jul 2012 11:33:07 -0400 In-Reply-To: <1341934298.3265.5514.camel@edumazet-glaptop> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Tue, 10 Jul 2012 17:31:38 +0200 > On Tue, 2012-07-10 at 08:07 -0700, David Miller wrote: >> Maintain a local hash table of TCP dynamic metrics blobs. >> >> Computed TCP metrics are no longer maintained in the route metrics. >> >> The table uses RCU and an extremely simple hash so that it has low >> latency and low overhead. A simple hash is legitimate because we only >> make metrics blobs for fully established connections. >> >> Some tweaking of the default hash table sizes, metric timeouts, and >> the hash chain length limit certainly could use some tweaking. But >> the basic design seems sound. >> >> Signed-off-by: David S. Miller >> --- > > Seems to lack namespace support, or maybe I missed something ? It does, I'll have to add it. Thanks for catching that.