On Tue, Jul 8, 2008 at 4:33 PM, Matt Sergeant <[EMAIL PROTECTED]> wrote: > But do note what I've said here previously: async is for high CONCURRENCY > not necessarily performance. Up to a certain level of concurrency prefork is > faster. > > Matt.
with SMTP one cares about throughput more than response time, and properly implemented async will always provide better throughput than an equivalent forking system on the same hardware simply because the OS doesn't have to bother with as many context switches. (lots of wiggle room in "properly.")
