The writing of the files is not the problem or the disk i/o. It finished writing
well before IMS is close to geting done. The basic scenerio is that 50,000
emails get dumped in the OUT directory, and IMS just lags at getting them out,
without any other interference from other disk i/o, because nothing else is
happening but the sending of mail. Are you getting high throughput for your
application, and does your application write to the IMS server a little at a
time or does it also accumulate the mail, while IMS sends.
Pete Cronin
Tom Langer wrote:
> One quick suggestion - if you are writing your mail files to a drive that is
> using something like RAID 5, then that'll hurt WRITE performance. Monitor
> your disk I/O carefully - writing that many files to a RAID 5 can slow you
> down. There is a couple extra I/O attempts (for parity n verification) - a
> mirrored drive would work better than a RAID 5 in this case since a mirrored
> drive writes faster than striped drive.
>
> iMS should be able to handle many more emails than that - you got the cpu,
> memory is fair, size of HD doesn't matter - use performance monitor to look
> for disk i/o bottlenecks - and if you are using a sql database, especially
> thru a lan or other ip connection, check out those to see if that's your
> bottleneck.
>
> Tom
>
> ----- Original Message -----
> From: Peter Cronin <[EMAIL PROTECTED]>
> To: inFusion Support List <[EMAIL PROTECTED]>
> Sent: Wednesday, May 23, 2001 3:31 PM
> Subject: [iMS] Thoroughput of IMS engine
>
> > Can anyone help me shed some light on getting the proper thoroughput
> > from IMS. I am trying to send at least 20,000 emails an hour. I have a
> > Pentium 1 ghz, 256 meg ram , 30 gig UDMA drive, dedicated full T1. We
> > are directly writing the 2 control files to the OUT directory, averaging
> > 10-20k a piece.(we have to write it out ourselves, because of the
> > complex merge fields we have). At any given time, there could be up to
> > 40-50,000 emails in the OUT directly. We plan to have a very busy
> > server, so the server that is writing to the mail server, must write as
> > fast as possible, and it does.
> >
> > Is anyone else experiencing something like this? Is anyone doing an
> > application like this?
> >
> > My server just crawls, and the CPU is pinned. The output just crawls. Is
> > anyone doing it this way, by putting all the messages in first? Any help
> > would be appreciated.
> >
> > PSC
> >
> > --
> > Peter S. Cronin
> > Progressive Systems Concepts Inc.
> > WEB: http://www.psconcepts.com
> > eMail: [EMAIL PROTECTED]
> >
> >
> >
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--
Peter S. Cronin
Progressive Systems Concepts Inc.
WEB: http://www.psconcepts.com
eMail: [EMAIL PROTECTED]
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