From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net] net_sched: gen_estimator: extend pps limit Date: Wed, 08 Jul 2015 13:59:56 -0700 (PDT) Message-ID: <20150708.135956.157230596810615593.davem@davemloft.net> References: <1435845439.11970.25.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, ast@plumgrid.com, jhs@mojatatu.com, john.fastabend@gmail.com To: eric.dumazet@gmail.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:37400 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754851AbbGHU75 (ORCPT ); Wed, 8 Jul 2015 16:59:57 -0400 In-Reply-To: <1435845439.11970.25.camel@edumazet-glaptop2.roam.corp.google.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Thu, 02 Jul 2015 15:57:19 +0200 > From: Eric Dumazet > > rate estimators are limited to 4 Mpps, which was fine years ago, but > too small with current hardware generation. > > Lets use 2^5 scaling instead of 2^10 to get 128 Mpps new limit. > > On 64bit arch, use an "unsigned long" for temp storage and remove limit. > (We do not expect 32bit arches to be able to reach this point) > > Tested: > > tc -s -d filter sh dev eth0 parent ffff: > > filter protocol ip pref 1 u32 > filter protocol ip pref 1 u32 fh 800: ht divisor 1 > filter protocol ip pref 1 u32 fh 800::800 order 2048 key ht 800 bkt 0 flowid 1:15 > match 07000000/ff000000 at 12 > action order 1: gact action drop > random type none pass val 0 > index 1 ref 1 bind 1 installed 166 sec > Action statistics: > Sent 39734251496 bytes 863788076 pkt (dropped 863788117, overlimits 0 requeues 0) > rate 4067Mbit 11053596pps backlog 0b 0p requeues 0 > > Signed-off-by: Eric Dumazet Applied, thanks.