Date: Fri, 5 Jul 2013 15:40:08 -0700 From: Adrian Chadd <adrian@freebsd.org> To: TJ <tj@wallago.co.uk> Cc: freebsd-performance@freebsd.org Subject: Re: Outgoing mail server performance Message-ID: <CAJ-VmonUJrKvGdo-Tv27csdVhrXN0b3XgmyozN3LF%2B12=-tcCA@mail.gmail.com> In-Reply-To: <51D679A9.5020508@wallago.co.uk> References: <51D44EF6.8000307@wallago.co.uk> <op.wznpwnkd34t2sn@tech304.office.supranet.net> <51D4671B.8070509@wallago.co.uk> <op.wznr79vf34t2sn@tech304.office.supranet.net> <51D679A9.5020508@wallago.co.uk>
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On 5 July 2013 00:45, TJ <tj@wallago.co.uk> 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
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