Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 13 Jul 2001 17:14:09 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 13 Jul 2001 17:14:00 -0400 Received: from sciurus.rentec.com ([192.5.35.161]:2491 "EHLO sciurus.rentec.com") by vger.kernel.org with ESMTP id ; Fri, 13 Jul 2001 17:13:51 -0400 Date: Fri, 13 Jul 2001 17:13:55 -0400 (EDT) From: Dirk Wetter To: Marcelo Tosatti cc: Mike Galbraith , , Subject: Re: dead mem walking ;-) In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="96532003-400096395-995058835=:15876" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. Send mail to mime@docserver.cac.washington.edu for more info. --96532003-400096395-995058835=:15876 Content-Type: TEXT/PLAIN; charset=US-ASCII On Thu, 12 Jul 2001, Marcelo Tosatti wrote: > > > And that is what is eating the system performance. > > > > does it bring up the load up to 30 and make the machine unusable? > > (kswapd was also sometimes in the top-list of CPU hogs, but since i > > sorted it by memory...) > > Yes. Obviously that should not happen. > > What you're seeing _is_ a problem. thx for the ACK. :)) in the beginning of the week i felt like nobody really cares. > > > Can you please show us the output of /proc/meminfo when the system is > > > behaving badly ? > > > > hold on, we set s.th. up.... > > Ok, thanks. here (attachement) it is, first the "top" output (sorry for the length, but i don't want to cut too much. even more info i can make av. upon request). interesting is, that after i killed one job, some minutes later the the machine went to sleep again for a ~20 minutes: 4:49pm up 1:55, 2 users, load average: 21.05, 18.29, 16.79 55 processes: 52 sleeping, 3 running, 0 zombie, 0 stopped CPU0 states: 0.1% user, 99.115% system, 0.22% nice, 0.59% idle CPU1 states: 0.4% user, 99.106% system, 0.64% nice, 0.23% idle Mem: 4057236K av, 4050648K used, 6588K free, 0K shrd, 2884K buff Swap: 14337736K av, 2785436K used, 11552300K free 3428484K cached PID PPID USER PRI SIZE SWAP RSS SHARE D STAT %CPU %MEM TIME COMMA 1374 1295 usersid 15 2140M 1.2G 924M 353M 0M R N 99.7 23.3 77:56 ceqsim 2089 760 root 19 1048 4 1044 824 55 R 0.2 0.0 0:00 top 1 0 root 8 76 12 64 64 4 S 0.0 0.0 0:02 init a few secs later i did cat /proc/meminfo (machine was in the middle of waking up again): total: used: free: shared: buffers: cached: Mem: 4154609664 4148756480 5853184 0 2953216 3529117696 Swap: 1796939776 2871406592 3220500480 MemTotal: 4057236 kB MemFree: 5716 kB MemShared: 0 kB Buffers: 2884 kB Cached: 3446404 kB Active: 378132 kB Inact_dirty: 2944608 kB Inact_clean: 126548 kB Inact_target: 560 kB HighTotal: 3211200 kB HighFree: 2036 kB LowTotal: 846036 kB LowFree: 3680 kB SwapTotal: 14337736 kB SwapFree: 11533628 kB readprofile showed even worse statistics for __get_swap_page afterwards: 884565 total 1.0268 488027 __get_swap_page 897.1085 385109 default_idle 7405.9423 1920 do_anonymous_page 6.2338 1198 file_read_actor 4.8306 872 si_swapinfo 5.0698 782 do_softirq 5.7500 779 skb_copy_bits 0.9143 317 statm_pgd_range 0.8087 302 __rdtsc_delay 10.7857 why was the machine hung with that one job? memorywise that job was only 2.1GB on my 4GB machine. is it also due to the __get_swap_page issue or are the "Inact_dirty" pages related to that? cheers, ~dirkw --96532003-400096395-995058835=:15876 Content-Type: APPLICATION/x-gtar; name="vm.gz" Content-Transfer-Encoding: BASE64 Content-ID: Content-Description: Content-Disposition: attachment; filename="vm.gz" H4sICJBfTzsCA3ZtAO2Za2/bVhKGv/NXTAsEmxZe4twv+uYk3tToajewUxTo lwUt0bbWkqgVqXrTX993SJGiHEq2gKRYLKokAsk5Z3gu7zMzR0lIj6RZLYg2 K1KCFrPlGZGkTZmvcTEvsillv+br7C4fkUqlOCOZCnyLVIfESVqti0lelnk5 IuupnOf5ara8Qytab5bL+lLTb8XiZpajE5VVsVrl0+Tth5/4Jqu4I7lUvNq+ UppUv6LyU1nlizO24G45m6CzD3w9m85z7i37vWXXO6Rmr7foehu21L3H+QK9 jLBeafcjpnfGN0oa8SO7maIjkRURttt1nte3+MBa3q8bq1YS1pvN7W1y/Zit Rhi21t637roOjbudkf3RZx9vMRZYJ9nkHmtD9OHyHb74+6fri6u6zYerS6Lr y18u6Prn8w9EV9fXdP3D+dUFbO/o+uP5R3qFZaFX44sxHn28HF/Q23+Ox+cJ Se0N9lRFW69SOZvizuGvFuN6nNhS956sNAbt8Owd/QMtbBrJyFSihRoJTZP8 P+VsAXfKapilMz13Fu5UOOZOp4Hdicad6tzxatYzhGKKotouSWxWcP+r/hZY AL5WPDJR+xMjIeihxEZMk+T1Kl/fFutFtpzkNCupeGBpVwXd52vs5bJ4pFn1 l5Kq7O4O8qQVpF1SVtK3vLDfjr5LktOQ8DUSmpEw4ikSuoeEPQUJu0NC1TLu RG1Z7o2o3SEker21SNVeb9X1NtzqCBJahz4SOthjSEh9FIlgcG06JLSJQnt1 AAlpfZBfE4khDRto2KsxqQAhy9SwhoUItYavag07IKFNGj9DYogwu3WnvWZ3 esidQiRJfePOHEdCiSNIXP1cL1oaekjIHRKPOWXrvNZ+Rrf5I5X5pFhOS5pD L2t6nFX3pL630o/fbHmYLam6z4kdNHtwlswLoJRVW6/MCZ2YPFxNiq1JkV8s efRJ2Q//lu+2Wq+pGSDF9Hr7PVJMr7fvODuYPMx+8lCHSVFSqyOkSOFlUD1S lLNRHiTFma9KyqAWgcoz4VmJ1PW0qFotDpMXSHphx8QKhETUezLKIqZ32aN2 p2JLnjlOXmR3bt+dUaGXjHxqODCKJ+4w3eS16YItVbMFyFlOt6PndMJUTFYb ui/uOgTsyxHQNQKhRkAlzvYRcKqHgNohIJ9FoCdiHfbqJ7ML99al9jkEjHjS u6uf7A6ggwiEPQRCOIYANz6MgHX47Oon5T2oOFQ/KQFvDMz/GAJ6r0IxOwQO ZAuvzZi8qjUr3sMB0scuWygJ9SuEtEaz/tl6bOvOdO68M3tEWXZnG3euR1Tk Z96Jp7P1EcPBVnPBylfYIdxqahbYPpkthIrMsyyo2FSrTUWoySBq8LGB6r5j 0hgd36KjjqODwj4gcSAOR7CR+vAnO3+y8//NDueiZf7fqgVoknEyuuWCzbcc ffMNtWUZJyZmJm12qrwvNvNpcpM3NmSuVTFbwtltk9XKajaf15UfH4LWeVYW y7KGNCPz/g0toIfZMm9ABamqrfP0c0kO66LO6ozNyU6kMSQ+9ln1oseqO6XU E7uTfoyoIUOPN7H7paC5HqD1eH/R6++O82r2DkbGHzsYKWmPlXtKQtPcouVV KR2DOcSrxas5OvyRvD5/9EDhrVoFqz1ehwBTDBjqsxgjKNOAFoBJ1+PV41CE kO94cZ8t9+SAO6d6vHKx1brD6GJX7v21+dAih6RviySRFgcaHJ1GSbvgVVFl 8xFf8f7UF7wxuCjvcabCE95ZDAVPmj0ZtaKR1jgRHaauIQGU8c46ACGUCro+ CG61wsNXTgSBiKO8jS6IVik+uqij967fuH3G7/nYDa9TKT28YcvfmlFuf07x gSNQY7neDnz3EWx5082jO1pEVVveNvPa/V4lbGgs55Nq9mve66Ks1fV7LpfZ pPrXdLauPtVmG73CnDvLZJ5ny9H+CBpLla3v8qo28UIZtvwwu7vvTVUDGiVE a+lPVQZpQ/2evxeP/dWhgN1oVgeWvdXxPLb6Pbzsu04tqK1l16lvYdEoltUX Fo2RBopGaIFSjMN8Y08FKJjwfugCSreYlgrhc80oGQLCiWEFRjTiFQgnqAZG 26zLCaohfuOAapR12ko1oBoESOhmUDXgwphh1YSw3c3PVKODahTwctVwjOu0 8ULVoI9x4STVKLw+NCNg1Wg30vYrqEbHaLnKQF0pMOU91SASIAopr7XVyDxu QDVaQDiSxaV9ABrWRXeSarh+PV01ZlA1zkXW76BqfOxHlJ1qpGBshlRjBP6Y YdV4Ld0foRotGq2/XDUixC05rBojUcF+edWEoA1HW7LeW+1EXzUAV8KEKhhL LlBaD6nGIMcZg+iPHO3QxhlxmmrQ4XTVRDekGi8g4jCoGiGkG1QN9tn3tbFT jY7aSHVANcKJk1Wj4+mq2fJxgmqM38anpDk11D/oNj9s1WeJm2zywP8xMscC 0eubT/SAIwGfBrjhv4sbnNJrvfmvUBDhSouAdET4p4UUdi+5YVpCseBidCya wTCFxRI43KoaXRsjHpwgOBvbUHCS4DgsDglOG6GGwhTvkTBiQHBMjPFqUHDe hRAGBYfDhj8xTCkTbfOelwsOJG/HdoLgtPJNsk5+B/2nG0RXHgAA --96532003-400096395-995058835=:15876-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/