From owner-freebsd-performance@FreeBSD.ORG Sun Jan 1 11:24:29 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2F94B16A41F for ; Sun, 1 Jan 2006 11:24:29 +0000 (GMT) (envelope-from mv@roq.com) Received: from p4.roq.com (ns1.ecoms.com [207.44.130.137]) by mx1.FreeBSD.org (Postfix) with ESMTP id C2FB343D5C for ; Sun, 1 Jan 2006 11:24:28 +0000 (GMT) (envelope-from mv@roq.com) Received: from p4.roq.com (localhost.roq.com [127.0.0.1]) by p4.roq.com (Postfix) with ESMTP id ED97D4CB0C; Sun, 1 Jan 2006 11:24:46 +0000 (GMT) Received: from [192.168.0.2] (ppp157-158.static.internode.on.net [150.101.157.158]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by p4.roq.com (Postfix) with ESMTP id 1B41B4CB03; Sun, 1 Jan 2006 11:24:45 +0000 (GMT) Message-ID: <43B7BBEE.5020701@roq.com> Date: Sun, 01 Jan 2006 22:24:30 +1100 From: Michael Vince User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.7.12) Gecko/20051208 X-Accept-Language: en-us, en MIME-Version: 1.0 To: huang leo References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP Cc: freebsd-performance@freebsd.org Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 01 Jan 2006 11:24:29 -0000 huang leo wrote: >Hi, all: > >We had evaluated MySQL performance on FreeBSD and Linux. The result is >attached. > >We are longing for your feedbacks! > > >Best regards, > >Leo Huang > Really good work. I gave your results some thought and was thinking that maybe you should check to see if you reached the default 1500 threading limit of libthr and maybe it needs to be increased, I set mine to 40000 like below. kern.threads.max_threads_per_proc=40000 kern.threads.max_groups_per_proc=40000 I was thinking it would be good to show threading usage activity with some kind of 1 second loop doing ps -auxwH | grep -c 'mysql' or something like that so we could see what limits its getting to, and so I can have an idea of what I can compare it to on my own servers. Just a suggestion. Regards, Mike From owner-freebsd-performance@FreeBSD.ORG Mon Jan 2 01:28:08 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8E60C16A41F for ; Mon, 2 Jan 2006 01:28:08 +0000 (GMT) (envelope-from chrcoluk@gmail.com) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.203]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0D73C43D45 for ; Mon, 2 Jan 2006 01:28:07 +0000 (GMT) (envelope-from chrcoluk@gmail.com) Received: by wproxy.gmail.com with SMTP id i31so2066970wra for ; Sun, 01 Jan 2006 17:28:07 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:references; b=NgepDokK6je7qf0M8XfiVmNLTfoXDIX3jvq9DY/2X/1YGVCuQ2aLKDImWyd+CyE0Xq4J6qPxhGoqTlqzx6dapR3tc4OG9xHlZ8l8O7fSOTofQPPmwyID4F/CopPIplL4a/TP3K7FE649fdbOoWeP90UL5YYqUZSQ9GJLt+b8YB0= Received: by 10.54.102.6 with SMTP id z6mr348368wrb; Sun, 01 Jan 2006 17:28:07 -0800 (PST) Received: by 10.54.122.17 with HTTP; Sun, 1 Jan 2006 17:28:07 -0800 (PST) Message-ID: <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> Date: Mon, 2 Jan 2006 01:28:07 +0000 From: Chris To: Michael Vince In-Reply-To: <43B7BBEE.5020701@roq.com> MIME-Version: 1.0 References: <43B7BBEE.5020701@roq.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-performance@freebsd.org, huang leo Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jan 2006 01:28:08 -0000 On 01/01/06, Michael Vince wrote: > > huang leo wrote: > > >Hi, all: > > > >We had evaluated MySQL performance on FreeBSD and Linux. The result is > >attached. > > > >We are longing for your feedbacks! > > > > > >Best regards, > > > >Leo Huang > > > Really good work. > > I gave your results some thought and was thinking that maybe you should > check to see if you reached the default 1500 threading limit of libthr > and maybe it needs to be increased, I set mine to 40000 like below. > kern.threads.max_threads_per_proc=3D40000 > kern.threads.max_groups_per_proc=3D40000 > > I was thinking it would be good to show threading usage activity with > some kind of 1 second loop doing ps -auxwH | grep -c 'mysql' or > something like that so we could see what limits its getting to, and so I > can have an idea of what I can compare it to on my own servers. > > Just a suggestion. > > Regards, > Mike Well sorry if I am completely wrong here, but that test seems to indicate there is a general stability problem with libpthread. My own experience backs up their results since on a production web server with heavy forums I have had mysql lockups until I tinkered with the threading settings. Libthr is the good old threading routine from the 4.x days if I am correct, so if libpthread is indeed unstable under continous heavy load how has it become unoticed by the developer's or has it just been tested in desktop environments? If libpthread is a problem is it maybe better to further develop libthr or at least add a option in the mysql ports Makefile to allo= w users to use it without tinking with libmap.conf manually. I understand that libpthread is mainly an advantage for SMP systems but if (a) it introduces instability the increased performance it gives becomes irrelevan= t and (b) what about UP systems what is the best threading routine for them? libthr has that been improved in 5.x since 4.x as their results did show libthr was better then linuxthreads when in the 4.x days linuxthreads was considered better. I am confused now as their is very little documentation on this, google throws up barely anything and my main concern is stability. Chris From owner-freebsd-performance@FreeBSD.ORG Wed Jan 4 09:52:49 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6EFCD16A41F for ; Wed, 4 Jan 2006 09:52:49 +0000 (GMT) (envelope-from mv@roq.com) Received: from p4.roq.com (ns1.ecoms.com [207.44.130.137]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1215C43D46 for ; Wed, 4 Jan 2006 09:52:48 +0000 (GMT) (envelope-from mv@roq.com) Received: from p4.roq.com (localhost.roq.com [127.0.0.1]) by p4.roq.com (Postfix) with ESMTP id 755614D14C; Wed, 4 Jan 2006 09:52:51 +0000 (GMT) Received: from [192.168.0.2] (ppp157-158.static.internode.on.net [150.101.157.158]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by p4.roq.com (Postfix) with ESMTP id 4CDD54D129; Wed, 4 Jan 2006 09:52:40 +0000 (GMT) Message-ID: <43BB9AD0.8060202@roq.com> Date: Wed, 04 Jan 2006 20:52:16 +1100 From: Michael Vince User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.7.12) Gecko/20051208 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Chris References: <43B7BBEE.5020701@roq.com> <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> In-Reply-To: <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP Cc: freebsd-performance@freebsd.org, huang leo Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jan 2006 09:52:49 -0000 Chris wrote: >On 01/01/06, Michael Vince wrote: > > >>huang leo wrote: >> >> >> >>>Hi, all: >>> >>>We had evaluated MySQL performance on FreeBSD and Linux. The result is >>>attached. >>> >>>We are longing for your feedbacks! >>> >>> >>>Best regards, >>> >>>Leo Huang >>> >>> >>> >>Really good work. >> >>I gave your results some thought and was thinking that maybe you should >>check to see if you reached the default 1500 threading limit of libthr >>and maybe it needs to be increased, I set mine to 40000 like below. >>kern.threads.max_threads_per_proc=40000 >>kern.threads.max_groups_per_proc=40000 >> >>I was thinking it would be good to show threading usage activity with >>some kind of 1 second loop doing ps -auxwH | grep -c 'mysql' or >>something like that so we could see what limits its getting to, and so I >>can have an idea of what I can compare it to on my own servers. >> >>Just a suggestion. >> >>Regards, >>Mike >> >> > > >Well sorry if I am completely wrong here, but that test seems to indicate >there is a general stability problem with libpthread. My own experience >backs up their results since on a production web server with heavy forums I >have had mysql lockups until I tinkered with the threading settings. > Personally I was surprised by this statement that libpthread wasn't working for his test, for me it does benchmark a tad slower but I have always seen libpthread as the most stable threading library. libthr doesn't work very well at all under amd64 in Java benchmarks (Java will core in a few minutes of usage) while pthread is much more reliable. >I am confused now as their is very little documentation on this, google >throws up barely anything and my main concern is stability. > >Chris > > I believe the best thing to do is always just benchmark and use whats best for you, there is no guarantee with this stuff. BTW I did a few super smack tests and saw that the thread numbers doesn't appear to reach thread numbers above 1500 but I only tested with smaller client numbers. Mike From owner-freebsd-performance@FreeBSD.ORG Wed Jan 4 11:51:25 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 950F516A41F for ; Wed, 4 Jan 2006 11:51:25 +0000 (GMT) (envelope-from Alexander@Leidinger.net) Received: from www.ebusiness-leidinger.de (jojo.ms-net.de [84.16.236.246]) by mx1.FreeBSD.org (Postfix) with ESMTP id E3E6F43D64 for ; Wed, 4 Jan 2006 11:51:24 +0000 (GMT) (envelope-from Alexander@Leidinger.net) Received: from Andro-Beta.Leidinger.net (p54A5D07C.dip.t-dialin.net [84.165.208.124]) (authenticated bits=0) by www.ebusiness-leidinger.de (8.13.1/8.13.1) with ESMTP id k04BlR69091728; Wed, 4 Jan 2006 12:47:27 +0100 (CET) (envelope-from Alexander@Leidinger.net) Received: from Magellan.Leidinger.net (Magellan.Leidinger.net [192.168.1.1]) by Andro-Beta.Leidinger.net (8.13.3/8.13.3) with ESMTP id k04BpM8N037732; Wed, 4 Jan 2006 12:51:22 +0100 (CET) (envelope-from Alexander@Leidinger.net) Date: Wed, 4 Jan 2006 12:51:21 +0100 From: Alexander Leidinger To: Chris Message-ID: <20060104125121.701cc504@Magellan.Leidinger.net> In-Reply-To: <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> References: <43B7BBEE.5020701@roq.com> <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> X-Mailer: Sylpheed-Claws 1.9.100 (GTK+ 2.8.9; i386-portbld-freebsd7.0) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new Cc: Michael Vince , freebsd-performance@freebsd.org, huang leo Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 04 Jan 2006 11:51:25 -0000 On Mon, 2 Jan 2006 01:28:07 +0000 Chris wrote: > have had mysql lockups until I tinkered with the threading settings. Libthr > is the good old threading routine from the 4.x days if I am correct, so if > libpthread is indeed unstable under continous heavy load how has it become > unoticed by the developer's or has it just been tested in desktop > environments? libc_r is the threading library used in 4.x. libpthread and libthr are SMP aware threading libraries with a different internal structure (M:N vs. 1:1). Bye, Alexander. -- 0 and 1. Now what could be so hard about that? http://www.Leidinger.net Alexander @ Leidinger.net GPG fingerprint = C518 BC70 E67F 143F BE91 3365 79E2 9C60 B006 3FE7 WL http://www.amazon.de/exec/obidos/registry/1FZ4DTHQE9PQ8/ref=wl_em_to/ From owner-freebsd-performance@FreeBSD.ORG Thu Jan 5 02:49:50 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7FB1516A41F for ; Thu, 5 Jan 2006 02:49:50 +0000 (GMT) (envelope-from leo.huang.gd@gmail.com) Received: from uproxy.gmail.com (uproxy.gmail.com [66.249.92.200]) by mx1.FreeBSD.org (Postfix) with ESMTP id BEE7C43D58 for ; Thu, 5 Jan 2006 02:49:49 +0000 (GMT) (envelope-from leo.huang.gd@gmail.com) Received: by uproxy.gmail.com with SMTP id o2so197273uge for ; Wed, 04 Jan 2006 18:49:48 -0800 (PST) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=XJ8g43uKUVsTrOmReZiz3E+Ep86Oc5+smLf8L4t6sxWNuK+TwU2k37usVsdME8xsYtj4U2iGjqXFO5SVQnCqmT2xv19TCVNQCaMrC5EDAbdgNkIFk7C3d+vFAhX+Re0dYX+fGVuyekLZWw2j5GO57DbAjmp1Yk3O2ToGTUX1xQs= Received: by 10.66.255.18 with SMTP id c18mr5525788ugi; Wed, 04 Jan 2006 18:49:48 -0800 (PST) Received: by 10.66.238.19 with HTTP; Wed, 4 Jan 2006 18:49:48 -0800 (PST) Message-ID: Date: Thu, 5 Jan 2006 10:49:48 +0800 From: Leo Huang To: Michael Vince In-Reply-To: <43BB9AD0.8060202@roq.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <43B7BBEE.5020701@roq.com> <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> <43BB9AD0.8060202@roq.com> Cc: Chris , freebsd-performance@freebsd.org Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Jan 2006 02:49:50 -0000 > Personally I was surprised by this statement that libpthread wasn't > working for his test, for me it does benchmark a tad slower but I have > always seen libpthread as the most stable threading library. I am surprised too. But It really happened in my test. You can get the crash situation from my last letter. Best regards, Leo Huang 2006/1/4, Michael Vince : > Chris wrote: > > >On 01/01/06, Michael Vince wrote: > > > > > >>huang leo wrote: > >> > >> > >> > >>>Hi, all: > >>> > >>>We had evaluated MySQL performance on FreeBSD and Linux. The result is > >>>attached. > >>> > >>>We are longing for your feedbacks! > >>> > >>> > >>>Best regards, > >>> > >>>Leo Huang > >>> > >>> > >>> > >>Really good work. > >> > >>I gave your results some thought and was thinking that maybe you should > >>check to see if you reached the default 1500 threading limit of libthr > >>and maybe it needs to be increased, I set mine to 40000 like below. > >>kern.threads.max_threads_per_proc=3D40000 > >>kern.threads.max_groups_per_proc=3D40000 > >> > >>I was thinking it would be good to show threading usage activity with > >>some kind of 1 second loop doing ps -auxwH | grep -c 'mysql' or > >>something like that so we could see what limits its getting to, and so = I > >>can have an idea of what I can compare it to on my own servers. > >> > >>Just a suggestion. > >> > >>Regards, > >>Mike > >> > >> > > > > > >Well sorry if I am completely wrong here, but that test seems to indicat= e > >there is a general stability problem with libpthread. My own experience > >backs up their results since on a production web server with heavy forum= s I > >have had mysql lockups until I tinkered with the threading settings. > > > Personally I was surprised by this statement that libpthread wasn't > working for his test, for me it does benchmark a tad slower but I have > always seen libpthread as the most stable threading library. > > libthr doesn't work very well at all under amd64 in Java benchmarks > (Java will core in a few minutes of usage) while pthread is much more > reliable. > > >I am confused now as their is very little documentation on this, google > >throws up barely anything and my main concern is stability. > > > >Chris > > > > > I believe the best thing to do is always just benchmark and use whats > best for you, there is no guarantee with this stuff. > > BTW I did a few super smack tests and saw that the thread numbers > doesn't appear to reach thread numbers above 1500 but I only tested with > smaller client numbers. > > Mike > > > > > From owner-freebsd-performance@FreeBSD.ORG Fri Jan 6 00:39:11 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1D24D16A41F for ; Fri, 6 Jan 2006 00:39:11 +0000 (GMT) (envelope-from grog@lemis.com) Received: from ext-gw.lemis.com (ext-gw.lemis.com [150.101.14.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 18F0743D49 for ; Fri, 6 Jan 2006 00:39:09 +0000 (GMT) (envelope-from grog@lemis.com) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.135]) by ext-gw.lemis.com (Postfix) with ESMTP id AE8D4131DC9; Fri, 6 Jan 2006 11:09:08 +1030 (CST) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id 8850B84DA5; Fri, 6 Jan 2006 11:09:08 +1030 (CST) Date: Fri, 6 Jan 2006 11:09:08 +1030 From: Greg 'groggy' Lehey To: Leo Huang Message-ID: <20060106003908.GH39391@wantadilla.lemis.com> References: <43B7BBEE.5020701@roq.com> <3aaaa3a0601011728j31f1cd5as@mail.gmail.com> <43BB9AD0.8060202@roq.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="Aq4SrlNverAHn87R" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.1i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 X-Mailman-Approved-At: Fri, 06 Jan 2006 16:38:48 +0000 Cc: Michael Vince , Chris , freebsd-performance@freebsd.org Subject: Re: Benchmark MySQL Performance On FreeBSD And Linux X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Jan 2006 00:39:11 -0000 --Aq4SrlNverAHn87R Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thursday, 5 January 2006 at 10:49:48 +0800, Leo Huang wrote: >> Personally I was surprised by this statement that libpthread wasn't >> working for his test, for me it does benchmark a tad slower but I have >> always seen libpthread as the most stable threading library. > > I am surprised too. But It really happened in my test. You can get > the crash situation from my last letter. My best bet here is that we have some currently unidentified bug that shows up in some cases and not in others. If somebody could identify this bug, I think we'd all be better off. Greg -- Greg Lehey, Senior Software Engineer MySQL AB, http://www.mysql.com/ Echunga, South Australia Phone: +61-8-8388-8286 Mobile: +61-418-838-708 VoIP: sip:4484@sip.mysql.com, sip:0871270137@sip.internode.on.net Are you MySQL certified? http://www.mysql.com/certification/ --Aq4SrlNverAHn87R Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFDvbwsIubykFB6QiMRAl21AKCsuNTC8KN0LiT/kG6ZTSYY9Pf8ZgCggC6R nNzp02QjNSc1NmHKxKFQp5E= =CgSM -----END PGP SIGNATURE----- --Aq4SrlNverAHn87R-- From owner-freebsd-performance@FreeBSD.ORG Sat Jan 7 12:10:02 2006 Return-Path: X-Original-To: freebsd-performance@freebsd.org Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4C70F16A420 for ; Sat, 7 Jan 2006 12:10:02 +0000 (GMT) (envelope-from tataz@tataz.chchile.org) Received: from smtp3-g19.free.fr (smtp3-g19.free.fr [212.27.42.29]) by mx1.FreeBSD.org (Postfix) with ESMTP id 977A143D46 for ; Sat, 7 Jan 2006 12:10:01 +0000 (GMT) (envelope-from tataz@tataz.chchile.org) Received: from tatooine.tataz.chchile.org (vol75-8-82-233-239-98.fbx.proxad.net [82.233.239.98]) by smtp3-g19.free.fr (Postfix) with ESMTP id 98CD743FCB; Sat, 7 Jan 2006 13:09:59 +0100 (CET) Received: from obiwan.tataz.chchile.org (unknown [192.168.1.25]) by tatooine.tataz.chchile.org (Postfix) with ESMTP id 78C859B85C; Sat, 7 Jan 2006 12:10:02 +0000 (UTC) Received: by obiwan.tataz.chchile.org (Postfix, from userid 1000) id 46082405B; Sat, 7 Jan 2006 13:10:02 +0100 (CET) Date: Sat, 7 Jan 2006 13:10:02 +0100 From: Jeremie Le Hen To: Mihai Tanasescu Message-ID: <20060107121002.GQ90495@obiwan.tataz.chchile.org> References: <43B05F1E.3060908@duras.ro> <43B095C7.4090000@rogers.com> <43B0F32E.7070905@duras.ro> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43B0F32E.7070905@duras.ro> User-Agent: Mutt/1.5.11 Cc: Mike Jakubik , freebsd-performance@freebsd.org Subject: Re: [fbsd] Re: Device polling heavy traffic X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 07 Jan 2006 12:10:02 -0000 Hi, > I wasn't there when the panic happened, I just noticed the load average > was increasing (with polling disabled); and it kept increasing until the > machine become unresponsive. After 1-2 minutes I observed it had > rebooted itself. > > Now I have polling enabled on it, I have kernel.idle.poll set and a > latency of 1-5 ms inside the local network. > But on the 3 links I have spoken of, altough they are not full I have > between 1-5 ms and 20-30 ms (when the number of packets passive through > the machine increases). It would be worth having a kernel dump. The steps to achieve this are well described in these articles : % http://www.onlamp.com/pub/a/bsd/2002/03/21/Big_Scary_Daemons.html % http://www.onlamp.com/pub/a/bsd/2002/04/04/Big_Scary_Daemons.html Regards, -- Jeremie Le Hen < jeremie at le-hen dot org >< ttz at chchile dot org >