From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 27 Oct 2002 16:22:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 27 Oct 2002 16:22:07 -0500 Received: from h-66-166-207-249.SNVACAID.covad.net ([66.166.207.249]:30954 "EHLO freya.yggdrasil.com") by vger.kernel.org with ESMTP id ; Sun, 27 Oct 2002 16:22:06 -0500 From: "Adam J. Richter" Date: Sun, 27 Oct 2002 13:27:58 -0800 Message-Id: <200210272127.NAA03536@adam.yggdrasil.com> To: akpm@digeo.com Subject: Re: Pauses in 2.5.44 (some kind of memory policy change?) Cc: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Andrew Morton wrote: >"Adam J. Richter" wrote: >> >> I run /usr/bin/mail to read my mail box file, which has about >> 24 megabytes (in 2300 messages, mostly spam). After this, about half >> of the time, my keyboard and mouse will intermittently stop responding >> for a second or two, maybe one or two times, and then everything >> seems to be OK. This happens *after* the mail spool has been read. >> This did not happen in previous kernels (well, maybe 2.5.43, I can't >> quite be sure about that one). >> >> The mail spool is on NFS, but I suspect the culprit might be >> some kind of memory balancing change in 2.5.44. >> >Clean pagecache usually doesn't cause much trouble... >Please send a `vmstat 1' trace which covers the episode. Here are two traces. Also, thanks for your help in pointing out the new version of procps at surriel.com/procps. procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 0 0 0 0 52160 31420 135796 0 0 1 9 91 40 0 0 99 0 0 0 0 52156 31420 135796 0 0 0 28 1054 267 1 1 98 0 0 0 0 52156 31420 135796 0 0 0 0 1043 159 1 1 98 1 0 2 0 45252 31420 142520 0 0 0 0 3573 349 9 38 53 ...Started /usr/bin/mail around here... 1 0 2 0 30024 31420 157636 0 0 0 0 6540 510 20 80 0 1 0 2 0 14908 31420 172544 0 0 0 0 6433 499 16 84 0 3 0 2 0 9196 31420 178172 0 0 0 17152 6939 259 3 97 0 1 0 1 0 2452 31420 185112 0 0 0 4056 4061 278 9 91 0 0 0 0 0 2636 31420 184848 0 0 0 0 1294 195 2 6 92 ...Pause occurred around here... 1 0 1 0 2664 31420 184848 0 0 0 4004 1766 55 0 44 56 0 0 0 0 2676 31420 184848 0 0 0 40 1103 282 2 3 95 0 0 0 0 2676 31420 184848 0 0 0 0 1064 169 0 0 100 0 0 0 0 2676 31420 184848 0 0 0 0 1082 225 1 1 98 0 0 0 0 2676 31420 184848 0 0 0 0 1097 263 1 1 98 Here is another run: procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 0 0 0 0 3992 30860 180424 0 0 1 9 92 40 0 0 99 0 0 0 0 3988 30860 180424 0 0 0 0 1069 267 1 2 97 0 0 0 0 3988 30860 180424 0 0 0 0 1032 136 1 0 99 2 0 1 0 2464 29912 182696 0 0 4 380 1121 229 18 19 63 2 0 3 0 4548 24556 185780 0 0 0 4732 1983 206 26 74 0 3 0 1 0 4572 24532 185780 0 0 0 10172 2696 46 1 99 0 0 0 0 0 3000 23460 188292 0 0 0 640 1160 248 12 18 70 ...Pause occurred here... 2 0 1 0 3348 23460 188292 0 0 0 9412 3409 109 0 58 41 0 0 0 0 3352 23460 188292 0 0 0 4 1036 147 1 2 97 0 0 0 0 3352 23460 188292 0 0 0 0 1032 153 0 1 99 0 0 0 0 3352 23460 188292 0 0 0 0 1014 105 1 0 99 1 0 0 0 3352 23460 188292 0 0 0 0 1089 435 1 1 98 Adam J. Richter __ ______________ 575 Oroville Road adam@yggdrasil.com \ / Milpitas, California 95035 +1 408 309-6081 | g g d r a s i l United States of America "Free Software For The Rest Of Us."