Hi Ian, I just see that exim can handle only 1000 concurrent connections(for sending out emails via SMTP), more will get error with loadrunner. Exim does not utilize full of the cpu/memory of the server. I have this additional configuration: root@mail:/etc/exim4/conf.d/main# cat 00_local_settings smtp_accept_max=1000000 smtp_accept_queue_per_connection=0 queue_run_max=10000 remote_max_parallel=1000 smtp_connect_backlog=50
No error found in the log too. Any configurations can let Exim4 use all the resources like cpu/memory? Thanks！ On Thu, Aug 15, 2013 at 6:56 PM, Ian Eiloart <[email protected]> wrote: > Hi Boyd, > > I'm not aware of any benchmark testing. I don't think anyone does it as a > matter of routine. Environments and configurations are highly variable. > > I'm still using what I think is nine year old hardware (to be upgraded > soon for support reasons, not for performance), and performance has never > been a problem provided queues are kept to a reasonable size: tens of > thousands of queued messages is too much, but generally we don't exceed a > few hundred queued messages. > > I'm quite happy with processing and scanning (ClamAV and SpamAssassin) a > million messages per day per host on this hardware. Our mailstores are not > on this hardware - and that will make a big difference. > > On 15 Aug 2013, at 09:04, boyd yang <[email protected]> wrote: > > > Hello, > > > > I'm testing exim4-heavy 4.80 now with loadrunner. > > > > Do you know the latest the performance benchmark? > > > > Thanks! > > -- > > ## List details at https://lists.exim.org/mailman/listinfo/exim-users > > ## Exim details at http://www.exim.org/ > > ## Please use the Wiki with this list - http://wiki.exim.org/ > > -- > Ian Eiloart > Postmaster, University of Sussex > +44 (0) 1273 87-3148 > > -- ## List details at https://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
