From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753887Ab2KQAZI (ORCPT ); Fri, 16 Nov 2012 19:25:08 -0500 Received: from 79.132.231.86.static.edpnet.net ([79.132.231.86]:46498 "EHLO mail.offline.be" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753832Ab2KQAZG (ORCPT ); Fri, 16 Nov 2012 19:25:06 -0500 Date: Sat, 17 Nov 2012 01:18:26 +0100 From: Marc Duponcheel To: David Rientjes Cc: Mel Gorman , Andy Lutomirski , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Marc Duponcheel Subject: Re: [3.6 regression?] THP + migration/compaction livelock (I think) Message-ID: <20121117001826.GC9816@offline.be> Reply-To: Marc Duponcheel References: <20121114100154.GI8218@suse.de> <20121114132940.GA13196@offline.be> <20121115011449.GA20858@offline.be> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="cWoXeonUoKmBZSoM" Content-Disposition: inline In-Reply-To: <20121115011449.GA20858@offline.be> Organization: OFFLINE X-uname: Linux 3.6.6-gentoo x86_64 User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --cWoXeonUoKmBZSoM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi David, others Results seem OK recap: I have 2 6core 64bit opterons and I make -j13 I do # echo always >/sys/kernel/mm/transparent_hugepage/enabled # while [ 1 ] do sleep 10 date echo = vmstat egrep "(thp|compact)" /proc/vmstat echo = khugepaged stack cat /proc/501/stack done > /tmp/49361.xxxx # emerge icedtea (where 501 = pidof khugepaged) for xxxx = base = 3.6.6 and xxxx = test = 3.6.6 + diff you provided I attach /tmp/49361.base.gz and /tmp/49361.test.gz Note: with xxx=base, I could see PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 8617 root 20 0 3620m 41m 10m S 988.3 0.5 6:19.06 javac 1 root 20 0 4208 588 556 S 0.0 0.0 0:03.25 init already during configure and I needed to kill -9 javac with xxx=test, I could see PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 9275 root 20 0 2067m 474m 10m S 304.2 5.9 0:32.81 javac 710 root 0 -20 0 0 0 S 0.3 0.0 0:01.07 kworker/0:1H later when processing >700 java files Also note that with xxx=test compact_blocks_moved stays 0 hope this helps Thanks have a nice day On 2012 Nov 15, Marc Duponcheel wrote: > Hi David > > Thanks for the changeset > > I will test 3.6.6 without&with this weekend. > > Have a nice day -- Marc Duponcheel Velodroomstraat 74 - 2600 Berchem - Belgium +32 (0)478 68.10.91 - marc@offline.be --cWoXeonUoKmBZSoM Content-Type: application/octet-stream Content-Disposition: attachment; filename="49361.base.gz" Content-Transfer-Encoding: base64 H4sICF7OplACAzQ5MzYxLmJhc2UA7dnLTttAFAbgfZ7C+y469wsq3VTddkN3VWWNx2MSxYld 2wnw9j2TC9QxEXFUECgnsED2P8eXmU8xxzeuS35U64TqhJArLq6YSr59/5kwQtnkOlkv2s51 E18taue7NCsrP2/TRbUOeaI5kVor/ri3drdhv1MZTrmVvX2L2W3jupAWblZChHJilFbsMQOH KsuEW/U0LEYTDrGn0Mr70LaJNZNuWkNgVXYpjKt8Qv7ZUsCmzPn5bqOvytLVbegl+xv3p7Xd 19blrIO/r5P5dHUb4unnCZygn09+fSl2H0OJCrlyX38nefizCquQdq6dx0rNJ3LP3WdyX5De AEoLXRAY8FQWkgSClOt+lAid0RitmypectrNFqFadfv8oLD39rCwyO2zpWVGdSztVl3VhDhl 6Z2bw9Sslr6bVcvdMcT5Jy+dZjxGu2kTXMxZDkHXjwll8kLEWGiWoUy34XQayjrEWyiGFwqV lSW9yuRIYXK88OAO7j8wBCbt4DO5OWTCRzExmokjTCT88heZ9ATsmZhDJjAH5zKhY5nQMUwo lVrFad6W2N6B9cLBRGSbKfa49D/M0he49Md8Q4xdylRnvWW2O3ZbhlDDIJ/FUfL/LGpGMuYP FzXl3KOc15AjUQ7KQTmj5cgrMkqOFdQekaOUZuwlOZorMpRjB3IoykE571wORTkoB+WcIef0 TpgRUlvD9RE5WnGmX5ID10MHcuzgac3YoRw7kCOekyOQDtJ5Gzqnd8estFoqZZEO0kE6QOf0 7holmmvKGL1wOyazOdzcrnlIuyrN45wAnyZtH5Z+0weGGRm8WjFZwTavbQ7SnEFaYjf6w3g5 vadGKZDQlhH08tpezjoEInunyNSI9hsYoUoQoRAZIkNkY5Cd3qkDHlIaKSQiQ2SIbAyy05t6 VDIrmbb47xUiQ2SjkJ3e/oNnRS40MxyRITJENgbZiEahllowCCIyRIbIxiAb0V00mnIhpUBk iAyRnY5Mj+kuGivgR77F46I9H5l8j8ikK1S2EQCFmxAH3rlZFCDj62I7eO1Lcn64PE3gSOA1 CFAkgAQumwBDAkjgsglwJIAELpuAQAJI4LIJSCSABC6ZgMGOEBK4MAJ/AbNhavSISQAA --cWoXeonUoKmBZSoM Content-Type: application/octet-stream Content-Disposition: attachment; filename="49361.test.gz" Content-Transfer-Encoding: base64 H4sICEXTplACAzQ5MzYxLnRlc3QA7dg7b9swEADg3b9Ce4ceH3oZTZeia5d0KwqCkihbMG2q EuUm/76kmzSR4wBFIZSMcZps8niiSH4QdLfSJl/MMSF5ArBO0zWF5NPnrwkFQlc3yXE/WmlX tdn3srai0qbejWJvjqpJ4E9zLzfqcuu+2wzSKtHKTs86XVqtn/33Ac+7p7pW4+ha7LZ3nZO2 wg0w9ayldU2VrHcPjbXRWvajmkXOG58m4vvGXnfW/b5Jdttpo/yEm8TNrN6tvn1oH66CQKaa TH78njTqx6QmJawcdz7T8A7umHwPdy3MBhDSVgW4AU9pXSS4QMLyeSjwvCI+tB+Mf2Jhu70y k32MP0tMAdLyPDFvyoup04rkPrWcrBmU3x7xU+7cZkyH2nbm8HAP/u+TT2VOmQ+120FJH1cy FyjnYTwrScV9mBoOSovfwWKrdK/8EvKXD+oyZyXMMsMrieH1xC9W8PFyQ9ymnV2r23ML7Gos sMUsNE3R+C1vB6XE1liftDk9n9Dd6M9t6o9Adbafyinyyz4oraSbwWmZXDApW79JLap4Myr4 1aggBFkgi4VYpNfDokQWyGIRFtkaroYFzZEFsliIBbmeTwv8tkAWS7GgyGIxFryoysYNs8O9 sEY0frvcUR/EeH+oT4fYDcJy1NvBwRAH4kAcl3FwEjeOlKIO1BFKRxq5DgIMeSCPMDzyNUTO g/EMeSCPUDxI9G8PSNEH+gjlg8bug6MP9BHOB4veBy/QB/oI5YNH7yPn6AN9hPIRffWqwOou +gjlo4i+fEWBYf0KfQTzEXv9ijKO7w/0EcxH7PUrWhb4/kAfwXzEXr9iDPLlfRD0gT7+ykfs 9StOKPpAH8F8xF6/4kVJ0Af6COOjjL5+lRZ5gT7Qx3/y8Qv1soDrlEcAAA== --cWoXeonUoKmBZSoM--