Brett <[EMAIL PROTECTED]> wrote:
> Does qmail recognize or take advantage of a dual processor setup?
If your OS is multi-processor-capable, then it will schedule qmail's multiple
processes across the processors. qmail itself is not multithreaded.
> I'm assuming that with the big concurrencyremote patch, regardless of the
> number of processors, we're sill relegated to, at most, 500 simultaneous
> connections.
Depends on your system; conf-spawn can be set higher if the FD_SETSIZE of your
system is large enough, and you have a high enough file descriptor limit.
> We need to send a lot of messages within a short period of time and are
> thinking our best bet is to simply add more machines to our strategy to
> increase the number of simultaneous connections as this seems to be where
> improvement is needed.
How many is "a lot"? Some people on this list report sending out most of a
100,000 member mailing list in the first hour or so after injection into the
queue. There's a section at www.qmail.org on large-volume servers.
It's also a subject which has come up many, many times on the mailing list.
Look through the mailing list archives for the results others have had.
Charles
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Charles Cazabon <[EMAIL PROTECTED]>
GPL'ed software available at: http://www.qcc.sk.ca/~charlesc/software/
Any opinions expressed are just that -- my opinions.
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