Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 24 Mar 2003 18:23:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 24 Mar 2003 18:23:24 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.31.123]:44045 "EHLO atrey.karlin.mff.cuni.cz") by vger.kernel.org with ESMTP id ; Mon, 24 Mar 2003 18:23:21 -0500 Date: Tue, 25 Mar 2003 00:34:29 +0100 From: Pavel Machek To: Andrew Morton Cc: Pavel Machek , linux-kernel@vger.kernel.org Subject: Re: 2.5.65: *huge* interactivity problems Message-ID: <20030324233429.GB3539@atrey.karlin.mff.cuni.cz> References: <20030323231306.GA4704@elf.ucw.cz> <20030324171936.680f98e2.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030324171936.680f98e2.akpm@digeo.com> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2734 Lines: 75 Hi! > > I'm having awfull interactivity problems. While lingvistic application > > (slm from nltools.sf.net) is running, machine is unusable. I still can > > read text in most, but can't login, can't run links, can't... For > > minutes. > > > > slm does a lot of computation over ~250MB dataset, but during stall > > disk was not active. > > Oh Pavel, this is more a whinge than a bug report. You know better > ;) Yes, it is whine, it is *so* horrible that I thought everyone must see it. Looks like scheduler problem to me. Disk is not lit. vmstat (part): 6 1 15352 3316 408 54164 0 0 256 0 1039 100 99 1 0 0 6 1 15352 3316 408 54168 0 0 0 0 1033 99 100 0 0 0 procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 6 1 15352 4212 408 53132 0 0 256 0 1040 109 98 2 0 0 6 1 15352 4044 408 53388 0 0 256 0 1051 112 99 1 0 0 6 1 15352 3708 408 53704 0 0 312 0 1045 108 99 1 0 0 6 1 15352 3484 408 53968 0 0 256 0 1045 130 96 4 0 0 6 1 15352 4276 392 53012 0 0 444 0 1088 131 95 5 0 0 6 1 15352 3828 392 53528 0 0 512 72 1034 114 100 0 0 0 6 1 15352 3828 392 53536 0 0 0 0 1057 90 99 1 0 0 6 1 15352 3604 392 53792 0 0 256 0 1052 87 88 12 0 0 6 1 15352 3324 392 54052 0 0 256 0 1040 95 88 12 0 0 6 1 15352 5340 360 52044 0 0 256 0 1031 90 93 7 0 0 8 1 15352 5164 360 52304 0 0 256 8 1036 99 98 2 0 0 4 1 15352 4884 360 52564 0 0 256 0 1031 118 98 2 0 0 4 1 15352 4660 360 52828 0 0 256 0 1210 215 97 3 0 0 Login takes > 30 seconds at this point. > - How much memory does the machine have? 256MB > - UP/SMP/preempt? UP > - What do vmstat and top say? top is hung, too. > - Did it happen in 2.5.64? 2.5.63? 2.4.20? Definitely not there with 2.4., and I do not think I seen it with 2.5.64. > - Does it get better if you renice stuff? Will try. > - What steps should others take to reproduce it? Quite hard to reproduce, that lingvistics tools are not really fun to use. > etc, etc, etc. Pavel -- Horseback riding is like software... ...vgf orggre jura vgf serr. - 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/