Speed problems

[Michael Dahlberg]

Julian:

I don't know if this will help now or not.

The version that we currently have installed is 4.13-3.  We have tried
4.26.8 but with the current HW config and the amount of mail we
process, this version could not keep up with the traffic.

I can't really run MailScanner in debug mode on this system (one of
our production systems), however, I've tried varying the number of
child processes from 1 to 10 (on 4.26.8) with no significant change in
the throughput.

I note that you have released 4.28.6.  Might this solve our speed
issues?

Thanks,
Mike

Julian Field [mailscanner at ECS.SOTON.AC.UK] wrote:
> I have been trying to reproduce the loss of speed running various different
> versions on the same mail messages in debug mode.
> Unsuccessfully :-(
> I have used versions from 4.23 onwards. All appear to run at the same
> speed. I am using a "reasonable" configuration with 1 RBL check and F-Prot.
> The only thing is I am not running SpamAssassin, as its speed is very
> variable and so hides the real speed of the underlying process.
>
> If you are suffering speed problems, please can you tell me what was the
> last fast version you used, and what was the first slow version. Did you
> downgrade again to fix the problem? Was it successful, and what version was
> again nice and fast?
>
> If you run a batch through in Debug mode does it always take the same time
> regardless of what version you are running? Maybe the problem only surfaces
> when running lots of child processes?
>
> The better I can narrow down exactly when the problem occurred, the better
> chance I have of finding it. It doesn't appear to be in the more robust
> MIME code I implemented, that doesn't make any difference.
>
> Please can you help me folks?
> --
> Julian Field
> www.MailScanner.info
> Professional Support Services at www.MailScanner.biz
> MailScanner thanks transtec Computers for their support
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