From owner-freebsd-stable@FreeBSD.ORG Fri Nov 9 17:36:35 2007 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0E03116A420; Fri, 9 Nov 2007 17:36:35 +0000 (UTC) (envelope-from root@kash.tomsk.ru) Received: from mx.kash.tomsk.ru (ns2.kash.tomsk.ru [88.204.35.2]) by mx1.freebsd.org (Postfix) with ESMTP id 5E60313C4CA; Fri, 9 Nov 2007 17:36:33 +0000 (UTC) (envelope-from root@kash.tomsk.ru) Received: by mx.kash.tomsk.ru (Postfix, from userid 0) id 79683DACFE; Fri, 9 Nov 2007 23:36:21 +0600 (NOVT) Received: from mx2.freebsd.org (mx2.freebsd.org [69.147.83.53]) by mx.kash.tomsk.ru (Postfix) with ESMTP id 1BF9CDACCD for ; Fri, 9 Nov 2007 23:36:20 +0600 (NOVT) Received: from hub.freebsd.org (hub.freebsd.org [IPv6:2001:4f8:fff6::36]) by mx2.freebsd.org (Postfix) with ESMTP id 65E86171486; Fri, 9 Nov 2007 17:34:29 +0000 (UTC) (envelope-from owner-freebsd-hackers@freebsd.org) Received: from hub.freebsd.org (localhost [127.0.0.1]) by hub.freebsd.org (Postfix) with ESMTP id DC80016A533; Fri, 9 Nov 2007 17:34:25 +0000 (UTC) (envelope-from owner-freebsd-hackers@freebsd.org) Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D034716A46B; Fri, 9 Nov 2007 17:34:16 +0000 (UTC) (envelope-from kris@FreeBSD.org) Received: from weak.local (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id F3F7413C480; Fri, 9 Nov 2007 17:34:15 +0000 (UTC) (envelope-from kris@FreeBSD.org) Message-ID: <47349A17.3080806@FreeBSD.org> Date: Fri, 09 Nov 2007 18:34:15 +0100 From: Kris Kennaway User-Agent: Thunderbird 2.0.0.6 (Macintosh/20070728) MIME-Version: 1.0 To: Alexey Popov References: <47137D36.1020305@chistydom.ru> <47140906.2020107@FreeBSD.org> <47146FB4.6040306@chistydom.ru> <47147E49.9020301@FreeBSD.org> <47149E6E.9000500@chistydom.ru> <4715035D.2090802@FreeBSD.org> <4715C297.1020905@chistydom.ru> <4715C5D7.7060806@FreeBSD.org> <471EE4D9.5080307@chistydom.ru> <4723BF87.20302@FreeBSD.org> <47344E47.9050908@chistydom.ru> In-Reply-To: <47344E47.9050908@chistydom.ru> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Sender: owner-freebsd-hackers@freebsd.org Errors-To: owner-freebsd-hackers@freebsd.org X-DSPAM-Result: Innocent X-DSPAM-Processed: Fri Nov 9 23:36:21 2007 X-DSPAM-Confidence: 0.9961 X-DSPAM-Probability: 0.0000 X-DSPAM-Signature: 47349a95284381301624865 X-DSPAM-Factors: 27, With+best, 0.00041, best+regards, 0.00041, >+Alexey, 0.00046, Alexey, 0.00070, Alexey, 0.00070, freebsd, 0.00292, freebsd, 0.00292, Sender*owner+freebsd, 0.00299, Sender*freebsd, 0.00299, List-Post*freebsd, 0.00299, List-Post*+>>, 0.00520, Cc*freebsd, 0.00541, Cc*freebsd, 0.00541, Received*hub.freebsd.org, 0.00552, Received*hub.freebsd.org, 0.00552, Received*(hub.freebsd.org, 0.00552, Received*4f8, 0.00552, Received*4f8, 0.00552, Received*mx2.freebsd.org, 0.00552, Received*mx2.freebsd.org, 0.00552, Received*from+hub.freebsd.org, 0.00552, Received*from+hub.freebsd.org, 0.00552, Received*hub.freebsd.org+(Postfix), 0.00552 Cc: freebsd-hackers@freebsd.org, freebsd-stable@freebsd.org Subject: Re: amrd disk performance drop after running under high load X-BeenThere: freebsd-stable@freebsd.org List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Nov 2007 17:36:36 -0000 Alexey Popov wrote: > Hi. > > Kris Kennaway wrote:te: > >> In the "good" case you are getting a much higher interrupt rate but >> with the data you provided I can't tell where from. You need to run >> vmstat -i at regular intervals (e.g. every 10 seconds for a minute) >> during the "good" and "bad" times, since it only provides counters and >> an average rate over the uptime of the system. > > Now I'm running 10-process lighttpd and the problem became no so big. > > I collected interrupt stats and it shows no relation beetween > ionterrupts and slowdowns. Here is it: > http://83.167.98.162/gprof/intr-graph/ > > Also I have similiar statistics on mutex profiling and it shows there's > no problem in mutexes. http://83.167.98.162/gprof/mtx-graph/mtxgifnew/ > > I have no idea what else to check. > > With best regards, > Alexey Popov > > I don't know what this graph is showing me :) When precisely is the system behaving poorly? Kris _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"