From owner-freebsd-performance@FreeBSD.ORG Wed Jul 3 16:28:48 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 24C1DD27 for ; Wed, 3 Jul 2013 16:28:48 +0000 (UTC) (envelope-from tj@wallago.co.uk) Received: from wallago.co.uk (mail.wallago.co.uk [91.213.195.71]) by mx1.freebsd.org (Postfix) with ESMTP id DF3D9175E for ; Wed, 3 Jul 2013 16:28:47 +0000 (UTC) Received: from [178.78.126.226] (helo=[172.16.4.150]) by wallago.co.uk with esmtpa (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1UuPll-000Fig-A2 for freebsd-performance@freebsd.org; Wed, 03 Jul 2013 17:19:01 +0100 Message-ID: <51D44EF6.8000307@wallago.co.uk> Date: Wed, 03 Jul 2013 17:19:02 +0100 From: TJ User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130623 Thunderbird/17.0.7 MIME-Version: 1.0 To: freebsd-performance@freebsd.org Subject: Outgoing mail server performance Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Jul 2013 16:28:48 -0000 Hi Guys, i am looking for some advise to help get the best out of one of my severs. It is a Dell PowerEdge R420,32GB,2x8c CPU and igb nics. Its primary purpose is to send outgoing mail it can send up to 3 millon emails a day and it running exim. At the moment the only tweaks i have are: *Loader.conf* kern.maxproc=24676 ipc.maxpipekva=277118976 ipc.shmseg=256 *Sysctl.conf* kern.ipc.somaxconn=2048 net.inet.tcp.sendspace=131072 inet.tcp.recvspace=131072 inet.udp.recvspace=131072 defer_swapspace_pageouts=1 maxfiles=262144 maxfilesperproc=131072 inet.icmp.icmplim=0 ipc.shmall=16384 ipc.maxsockets=65536 inet.tcp.delayed_ack=0 inet.tcp.msl=30000 inet.tcp.slowstart_flightsize=4 ipc.nmbclusters=65536 pmap.shpgperproc=400 pmap.pv_entry_max=18828980 I am relatively new to FreeBSD and would appreciate some pointers on improving the performance of this server. Cheers TJ From owner-freebsd-performance@FreeBSD.ORG Wed Jul 3 17:37:28 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 91A4D465 for ; Wed, 3 Jul 2013 17:37:28 +0000 (UTC) (envelope-from feld@feld.me) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by mx1.freebsd.org (Postfix) with ESMTP id 6634C1AA2 for ; Wed, 3 Jul 2013 17:37:27 +0000 (UTC) Received: from compute5.internal (compute5.nyi.mail.srv.osa [10.202.2.45]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id E0E822091C; Wed, 3 Jul 2013 13:37:26 -0400 (EDT) Received: from frontend2.nyi.mail.srv.osa ([10.202.2.161]) by compute5.internal (MEProxy); Wed, 03 Jul 2013 13:37:26 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=feld.me; h= content-type:to:subject:references:date:mime-version :content-transfer-encoding:from:message-id:in-reply-to; s= mesmtp; bh=M/ZjhIF3wvF/zc212vkTJ2geivY=; b=CxXiNJ3TBKPgnfQWNfEa0 6VWccmInnx40Q0N4G2eozd8/7L7GlRkspMyFUeHBSTmtdCFq+hfcqZ9dyi6P7o71 SPQH3+5STStDLbQUjK81zu30PDoBJqfXyUW35YTGKfHSl9hxfQBWT0l1HmXqQd2d 6cP7TLYT+Gl/qfeXqkiB1U= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-type:to:subject:references:date :mime-version:content-transfer-encoding:from:message-id :in-reply-to; s=smtpout; bh=M/ZjhIF3wvF/zc212vkTJ2geivY=; b=BS2t TvoLtTZUG1VYRS1XpxZIkFWhNIt/VEdSpxfheecJmb3Br86/m6KNOVnxKtX3gzv7 +LvE+uVh8vkygQHutmM+KVsxvXgd5WdrSTs6iLoLtCYllryTpx9fmXH+rgni7nH0 7Goj72JGVYxkl0si5vka46m6jcte0AQiMtYeA64= X-Sasl-enc: aY8LqWST/w+pQERJEoeF/IDN7tHTKBlVNU5/aXr9+e4N 1372873046 Received: from tech304.office.supranet.net (unknown [66.170.8.18]) by mail.messagingengine.com (Postfix) with ESMTPA id A226F6804B8; Wed, 3 Jul 2013 13:37:26 -0400 (EDT) Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes To: freebsd-performance@freebsd.org, TJ Subject: Re: Outgoing mail server performance References: <51D44EF6.8000307@wallago.co.uk> Date: Wed, 03 Jul 2013 12:37:25 -0500 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: "Mark Felder" Message-ID: In-Reply-To: <51D44EF6.8000307@wallago.co.uk> User-Agent: Opera Mail/12.15 (FreeBSD) X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Jul 2013 17:37:28 -0000 What kind of performance? CPU? Disk? Network? Do you need it to simply send more mail faster? From owner-freebsd-performance@FreeBSD.ORG Wed Jul 3 18:02:04 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 51C36C6F for ; Wed, 3 Jul 2013 18:02:04 +0000 (UTC) (envelope-from tj@wallago.co.uk) Received: from wallago.co.uk (mail.wallago.co.uk [91.213.195.71]) by mx1.freebsd.org (Postfix) with ESMTP id 1A5F51B9E for ; Wed, 3 Jul 2013 18:02:03 +0000 (UTC) Received: from cpc9-oxfd20-2-0-cust477.4-3.cable.virginmedia.com ([86.8.153.222] helo=Tims-MacBook-Pro.local) by wallago.co.uk with esmtpa (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1UuRNS-000FpI-4c; Wed, 03 Jul 2013 19:02:02 +0100 Message-ID: <51D4671B.8070509@wallago.co.uk> Date: Wed, 03 Jul 2013 19:02:03 +0100 From: TJ User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 MIME-Version: 1.0 To: Mark Felder Subject: Re: Outgoing mail server performance References: <51D44EF6.8000307@wallago.co.uk> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-performance@freebsd.org X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Jul 2013 18:02:04 -0000 Well the server is not peaking in CPU its using about 50% and still has 8GB of RAM free. Yes, i need it to send more email faster and use all the resource that it has. Cheers TJ On 03/07/2013 18:37, Mark Felder wrote: > What kind of performance? CPU? Disk? Network? Do you need it to simply > send more mail faster? > _______________________________________________ > freebsd-performance@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-performance > To unsubscribe, send any mail to > "freebsd-performance-unsubscribe@freebsd.org" From owner-freebsd-performance@FreeBSD.ORG Wed Jul 3 18:27:38 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 3A03E70D for ; Wed, 3 Jul 2013 18:27:38 +0000 (UTC) (envelope-from feld@feld.me) Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by mx1.freebsd.org (Postfix) with ESMTP id 0E0FA1D8D for ; Wed, 3 Jul 2013 18:27:37 +0000 (UTC) Received: from compute5.internal (compute5.nyi.mail.srv.osa [10.202.2.45]) by gateway1.nyi.mail.srv.osa (Postfix) with ESMTP id 6A2C820E30; Wed, 3 Jul 2013 14:27:36 -0400 (EDT) Received: from frontend2.nyi.mail.srv.osa ([10.202.2.161]) by compute5.internal (MEProxy); Wed, 03 Jul 2013 14:27:36 -0400 DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=feld.me; h= content-type:to:cc:subject:references:date:mime-version :content-transfer-encoding:from:message-id:in-reply-to; s= mesmtp; bh=yYs6d/8RDjOfS9gFsDeHws5R+XM=; b=nX8KwZWxit5fstCYuGAwz KHywoYrPJdSnvP+HyGIUGlIhWh97uNztBPcsO9Gj7FLXMoSGL1J3qh0jiLyN4bRw Vb1FSUjU2+Q37dWGRvoER8FhVkYQG7sj7WqXus0mrVZelh5ER/Epp7MQHBN6UHX1 Hge5ybbsYQtYTuyTbhySu4= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d= messagingengine.com; h=content-type:to:cc:subject:references :date:mime-version:content-transfer-encoding:from:message-id :in-reply-to; s=smtpout; bh=yYs6d/8RDjOfS9gFsDeHws5R+XM=; b=L6WZ 5TM6Uumir2+Yk4M0+kvSiXfK7vSNrS4PgDV9ySquS8tklXvQKq1Evh6p2UOQDdu8 RviNZ/KCwDp0Dz3NLqZUmOhldlVvMafj+oaNX05yo8W7w6XAgzRIIX+jy065KpnE Ur4m5Sxc/wrZf8xMY2iKQDGYHh6bS7wGqq0D8+w= X-Sasl-enc: VYQwz8hSCja94baC1TAFM+gJZTF5IfJjsjOFIJTUJoz9 1372876056 Received: from tech304.office.supranet.net (unknown [66.170.8.18]) by mail.messagingengine.com (Postfix) with ESMTPA id 2E32E680219; Wed, 3 Jul 2013 14:27:36 -0400 (EDT) Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes To: TJ Subject: Re: Outgoing mail server performance References: <51D44EF6.8000307@wallago.co.uk> <51D4671B.8070509@wallago.co.uk> Date: Wed, 03 Jul 2013 13:27:35 -0500 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: "Mark Felder" Message-ID: In-Reply-To: <51D4671B.8070509@wallago.co.uk> User-Agent: Opera Mail/12.15 (FreeBSD) Cc: freebsd-performance@freebsd.org X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Jul 2013 18:27:38 -0000 On Wed, 03 Jul 2013 13:02:03 -0500, TJ wrote: > Well the server is not peaking in CPU its using about 50% and still has > 8GB of RAM free. > Yes, i need it to send more email faster and use all the resource that > it has. > You will probably want to talk to people on the Exim lists because your limitation is likely the inability for Exim to effectively use all resources. I suspect they'll tell you that Exim isn't designed for bulk mailing and there isn't much you can do except put your mail spool on a ramdisk and cross your fingers. From owner-freebsd-performance@FreeBSD.ORG Fri Jul 5 07:45:52 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 712BEB2E for ; Fri, 5 Jul 2013 07:45:52 +0000 (UTC) (envelope-from tj@wallago.co.uk) Received: from wallago.co.uk (mail.wallago.co.uk [91.213.195.71]) by mx1.freebsd.org (Postfix) with ESMTP id 3788918E1 for ; Fri, 5 Jul 2013 07:45:51 +0000 (UTC) Received: from [178.78.126.226] (helo=[172.16.4.150]) by wallago.co.uk with esmtpa (Exim 4.80.1 (FreeBSD)) (envelope-from ) id 1Uv0i7-000Jlm-Ae; Fri, 05 Jul 2013 08:45:43 +0100 Message-ID: <51D679A9.5020508@wallago.co.uk> Date: Fri, 05 Jul 2013 08:45:45 +0100 From: TJ User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130623 Thunderbird/17.0.7 MIME-Version: 1.0 To: Mark Felder Subject: Re: Outgoing mail server performance References: <51D44EF6.8000307@wallago.co.uk> <51D4671B.8070509@wallago.co.uk> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-performance@freebsd.org X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jul 2013 07:45:52 -0000 I thought you might say that. So is there nothing i can do on the OS side to make things a little faster. Or general performance enhancements that would show some benefit? On 03/07/13 19:27, Mark Felder wrote: > On Wed, 03 Jul 2013 13:02:03 -0500, TJ wrote: > >> Well the server is not peaking in CPU its using about 50% and still >> has 8GB of RAM free. >> Yes, i need it to send more email faster and use all the resource >> that it has. >> > > You will probably want to talk to people on the Exim lists because > your limitation is likely the inability for Exim to effectively use > all resources. I suspect they'll tell you that Exim isn't designed for > bulk mailing and there isn't much you can do except put your mail > spool on a ramdisk and cross your fingers. From owner-freebsd-performance@FreeBSD.ORG Fri Jul 5 08:15:12 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id D111E251 for ; Fri, 5 Jul 2013 08:15:12 +0000 (UTC) (envelope-from roam@ringlet.net) Received: from nimbus.fccf.net (nimbus.fccf.net [77.77.144.35]) by mx1.freebsd.org (Postfix) with ESMTP id 56FB719D2 for ; Fri, 5 Jul 2013 08:15:12 +0000 (UTC) Received: from straylight.m.ringlet.net (unknown [78.90.13.150]) by nimbus.fccf.net (Postfix) with ESMTPSA id 9B750D15 for ; Fri, 5 Jul 2013 11:07:11 +0300 (EEST) Received: from roam (uid 1000) (envelope-from roam@ringlet.net) id dae05f by straylight.m.ringlet.net (DragonFly Mail Agent); Fri, 05 Jul 2013 11:07:11 +0300 Date: Fri, 5 Jul 2013 11:07:10 +0300 From: Peter Pentchev To: TJ Subject: Re: Outgoing mail server performance Message-ID: <20130705080710.GA6911@straylight.m.ringlet.net> References: <51D44EF6.8000307@wallago.co.uk> <51D4671B.8070509@wallago.co.uk> <51D679A9.5020508@wallago.co.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="azLHFNyN32YCQGCU" Content-Disposition: inline In-Reply-To: <51D679A9.5020508@wallago.co.uk> User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-performance@freebsd.org X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jul 2013 08:15:12 -0000 --azLHFNyN32YCQGCU Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 05, 2013 at 08:45:45AM +0100, TJ wrote: > On 03/07/13 19:27, Mark Felder wrote: > >On Wed, 03 Jul 2013 13:02:03 -0500, TJ wrote: > > > >>Well the server is not peaking in CPU its using about 50% and > >>still has 8GB of RAM free. > >>Yes, i need it to send more email faster and use all the > >>resource that it has. > >> > > > >You will probably want to talk to people on the Exim lists because > >your limitation is likely the inability for Exim to effectively > >use all resources. I suspect they'll tell you that Exim isn't > >designed for bulk mailing and there isn't much you can do except > >put your mail spool on a ramdisk and cross your fingers. [format fixed, top-quoting considered harmful] >=20 > I thought you might say that. > So is there nothing i can do on the OS side to make things a little faste= r. > Or general performance enhancements that would show some benefit? It's not that there's nothing you can do, it's more that it's much, much too early to say what might be improved. A mail server (in any of its incarnations) is a complicated piece of software (usually even several complicated pieces of software) that does many things, uses many system resources in many different ways at different times. The advice to turn to the Exim mailing lists is good in that the people there might be a bit more knowledgeable about this specific situation - they'll probably know, for each stages of the e-mail "travel" process, which system resources are used and how it may be improved. They might also know how to figure out which stage is the best target for speeding up, etc. Once you have this information, even if they are not very proficient with FreeBSD and they cannot help you with the specifics, *then* you may come back and people here will let you know how to enhance the performance for that particular resource usage pattern. G'luck, Peter --=20 Peter Pentchev roam@ringlet.net roam@FreeBSD.org p.penchev@storpool.com PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint 2EE7 A7A5 17FC 124C F115 C354 651E EFB0 2527 DF13 If this sentence were in Chinese, it would say something else. --azLHFNyN32YCQGCU Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBCAAGBQJR1n6qAAoJEGUe77AlJ98TSTYQAMXSabsGwa3aX5+ZCO2SPgmI 788PQ0zMhnyTK9dpeiYT941UP4EjmKIvoHtnFY6Wa6yLkglGqrB6i6/RPUcjb9m9 FxXh0oanow2damt/2Y/ugW6PQ2jlMYW/i30u0pfL4c9kdEmAqz6osHom/B6sk0m7 w/a+p/ZcGqdvnstfqNsWUip5Yyo1W4mjn9yJVDtF9uRVesf7vqgpWiX/qgeX6ddS e/hcZuWG7ZxHAlURM5mdP6rb/JXXMjKWMvxZZuT8XaSxxkcQJ6GBFnkGwnHNX9Sq VX6/AFJ8srI26qtERnW8kNChvCwmzOYf07Z7/LEP83p5/9SEUWAPLOcgLzn5B3w6 0vO80nM6vY+emuK6zB3HglJ3arrH9eOKGgLKdfYxb/DWpuQSwRYjk4mczB9bL8R2 aP5vBbCRdn3eVBztWVPJ8mimRH76807utU55MfnPAV3q0vGWwzy4lIrZ/oQyUwjx l//Oiz0xD1DGVsQlbKH5hd0cDoVVAZR+21Jh/u2M3QjWmtBue/z2Z/rnPm6a5ukh zfuEqUu8oyHam8gZIQX0M9VVeRRnyzxFCti1WEc443sxvX2w5kAyCE32m1aW+dZ5 f60XsWqsROrbz7bWU3irrZarz45zqnmkCQBCM7maYjii7aczJQTcCmz5u6/IeZSm xDyxC5qvCvfo0ICqPWH9 =51hS -----END PGP SIGNATURE----- --azLHFNyN32YCQGCU-- From owner-freebsd-performance@FreeBSD.ORG Fri Jul 5 22:40:09 2013 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id E06C2FAC for ; Fri, 5 Jul 2013 22:40:09 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qc0-x234.google.com (mail-qc0-x234.google.com [IPv6:2607:f8b0:400d:c01::234]) by mx1.freebsd.org (Postfix) with ESMTP id A60D818D2 for ; Fri, 5 Jul 2013 22:40:09 +0000 (UTC) Received: by mail-qc0-f180.google.com with SMTP id a1so1472790qcx.11 for ; Fri, 05 Jul 2013 15:40:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=Kqt803Y3RK1C+Aoz3kqjoEVC0HW1XeFWGUsFA8UePT0=; b=t+8Lb5pY14GKzhem9gn9Iu1EdN5A1WEZjLhU/pzZFkVEHH5xBTyH3hldt+94fmMPHc G/qXr0R3IiGsmgtXaeE/5gPVeojHqdQoiai6fTPVlQwUBQ+1nSeCI3S/6/Bkf9N04LNE 7eTv7N4uXEiIImBvxjJoJ/fP02uOXnA8IwDO5y6IDgpxZLt6Zvq9HKZCXxJPIqtfbSTk pkMKKLWCOSTsJZqoRgR7tp8lwQ8X9l2zoad6OUhz6rNxjpOqkd9nmmOnz0rwUnhBovgO iKS4DhY3WjD//vIp3bSPvH8jIaPH3vt9cIpTUmqRcHcVc1vp1oGJ5TwMwwjoyYE9ojmk S/VQ== MIME-Version: 1.0 X-Received: by 10.49.117.195 with SMTP id kg3mr7038268qeb.68.1373064008913; Fri, 05 Jul 2013 15:40:08 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.195.72 with HTTP; Fri, 5 Jul 2013 15:40:08 -0700 (PDT) In-Reply-To: <51D679A9.5020508@wallago.co.uk> References: <51D44EF6.8000307@wallago.co.uk> <51D4671B.8070509@wallago.co.uk> <51D679A9.5020508@wallago.co.uk> Date: Fri, 5 Jul 2013 15:40:08 -0700 X-Google-Sender-Auth: 5_Y15IFxGZBba2nUfKo7hEtscv8 Message-ID: Subject: Re: Outgoing mail server performance From: Adrian Chadd To: TJ Content-Type: text/plain; charset=ISO-8859-1 Cc: freebsd-performance@freebsd.org X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Jul 2013 22:40:09 -0000 On 5 July 2013 00:45, TJ wrote: > I thought you might say that. > So is there nothing i can do on the OS side to make things a little faster. > Or general performance enhancements that would show some benefit? Where'd you acquire the above tuning parameters from? You haven't provided any information about the actual environment itself and how various things in your system are behaving, save "not using all CPU." Without that, you can't make any decent guesses as to what's bottlenecking, thus any tuning is likely just hand-wavy, cargo-cult-y nonsense. So, if you think you're supposed to be getting much more out of that box, you should start by trying to identify why exim isn't sending as much mail as you'd like. I'd start by speaking to the exim team(s) and ask what kind of logging / profiling they have. There's a bunch of steps being taken when sending each message through the mail pipeline and you should see whether exim is capped at some artificial queue depth, or number of processes, or something. 2c, -adrian