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