From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: kernel 2.6.25-rc7 highly unstable on high load Date: Thu, 27 Mar 2008 17:07:29 +0100 Message-ID: <47EBC641.8040405@cosmosbay.com> References: <20080327062502.M51594@visp.net.lb> <20080326.234049.256533912.davem@davemloft.net> <47EB46BD.2080001@cosmosbay.com> <20080327144102.M65267@visp.net.lb> <47EBB4A3.4090102@cosmosbay.com> <20080327151520.M89250@visp.net.lb> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: David Miller , netdev@vger.kernel.org, kaber@trash.net, netfilter-devel@vger.kernel.org To: Denys Fedoryshchenko Return-path: Received: from smtp2e.orange.fr ([80.12.242.112]:25095 "EHLO smtp2e.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756464AbYC0QHg convert rfc822-to-8bit (ORCPT ); Thu, 27 Mar 2008 12:07:36 -0400 In-Reply-To: <20080327151520.M89250@visp.net.lb> Sender: netdev-owner@vger.kernel.org List-ID: Denys Fedoryshchenko a =C3=A9crit : > I did this tuning. Not sure what does mean rt_cache_entries, but seem= s they=20 > are still increasing. > > Kup /config # rtstat -c1000 -i60 > rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cac= he| > rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cache|rt_cac= he| > rt_cache| > entries| in_hit|in_slow_|in_slow_|in_no_ro| in_brd|in_marti|in_mar= ti|=20 > out_hit|out_slow|out_slow|gc_total|gc_ignor|gc_goal_|gc_dst_o|in_hlis= t| > out_hlis| > | | tot| mc| ute| | an_dst| =20 > an_src| | _tot| _mc| | ed| miss| verflow= |=20 > _search|t_search| > 274234| 1590009| 271953| 0| 1809| 6| 0| = 0| =20 > 24551| 7365| 0| 279991| 279867| 24| 0| 5438630|= 89656| > 280535| 25463| 19956| 0| 187| 0| 0| = 0| =20 > 485| 263| 0| 20407| 20404| 3| 0| 12796| = 242| > 288072| 25367| 19830| 0| 163| 0| 0| = 0| =20 > 493| 256| 0| 20248| 20245| 3| 0| 17146| = 346| > 294943| 25689| 19807| 0| 154| 0| 0| = 0| =20 > 438| 250| 0| 20211| 20208| 3| 0| 21554| = 432| > 301118| 25287| 19645| 0| 170| 0| 0| = 0| =20 > 466| 236| 0| 20052| 20048| 3| 0| 25713| = 528| > 307651| 25663| 20264| 0| 180| 0| 0| = 0| =20 > 472| 234| 0| 20678| 20675| 3| 0| 30588| = 607| > 313767| 25810| 20014| 0| 175| 0| 0| = 0| =20 > 459| 237| 0| 20425| 20422| 3| 0| 33701| = 699| > > > =20 Then try to lower gc_elasticity, to 3, or even 2 echo 3 >/proc/sys/net/ipv4/route/gc_elasticity