SV: SV: SV: Multiple cpu?

[Julian Field]

At 14:48 18/09/2002, you wrote:
>Hmm, now I feel stupid but I have to ask.
>Whats the differense between instances and child processes?

1 instance = 1 child process in MailScanner v4.

>My guess from the begining was thats with 2 cpu MS would be
>able to scan faster. But know Im not sure If I should spend the
>extra money.

Version 4 will definitely scan faster with 2 CPU's than 1.

>Does 2 cpu demands extra config or will it handle it by it self?

No extra config required.


>Kind regards
>
>/Anders
>
>
> > -----Ursprungligt meddelande-----
> > Från: Julian Field [mailto:mailscanner at ECS.SOTON.AC.UK]
> > Skickat: den 18 september 2002 15:33
> > Till: MAILSCANNER at JISCMAIL.AC.UK
> > Ämne: Re: SV: SV: Multiple cpu?
> >
> >
> > At 13:00 18/09/2002, you wrote:
> > >Just so Im sure of what you mean.
> > >I wont run multiple instances on the mailserver, I
> > >just want to be able to use the extra process speed from 2 cpu's?
> >
> > You can just set the number of child processes you want to
> > run. This will
> > then use all the CPU's it can get. My first speed test was
> > done with 12
> > child processes on a 2 CPU system.
> >
> >
> > >/Anders
> > >
> > > > -----Ursprungligt meddelande-----
> > > > Från: Julian Field [mailto:mailscanner at ECS.SOTON.AC.UK]
> > > > Skickat: den 18 september 2002 13:44
> > > > Till: MAILSCANNER at JISCMAIL.AC.UK
> > > > Ämne: Re: SV: Multiple cpu?
> > > >
> > > >
> > > > At 11:35 18/09/2002, you wrote:
> > > > >On Wed, 18 Sep 2002, Anders Andersson, IT wrote:
> > > > >
> > > > > > Thanks, then I order more horse power to the comp
> > > > > > and do an upgrade when v.4 is here.
> > > > >
> > > > >I don't recall if version 4 is supposed to be multithreaded
> > > > or not, but
> > > > >the ability to run multiple instances of mailscanner, or
> > > > even just two,
> > > > >will be a Very Good Thing. Probably a lot more valuable than
> > > > >multithreadedness. My guess is it's more of an IO and
> > > > scheduling thing
> > > > >than CPU horsepower.
> > > >
> > > > It's not strictly multi-threaded but it is multi-process.
> > > > --
> > > > Julian Field                Teaching Systems Manager
> > > > jkf at ecs.soton.ac.uk         Dept. of Electronics &
> > Computer Science
> > > > Tel. 023 8059 2817          University of Southampton
> > > >                              Southampton SO17 1BJ
> > > >
> >
> > --
> > Julian Field                Teaching Systems Manager
> > jkf at ecs.soton.ac.uk         Dept. of Electronics & Computer Science
> > Tel. 023 8059 2817          University of Southampton
> >                              Southampton SO17 1BJ
> >

-- 
Julian Field                Teaching Systems Manager
jkf at ecs.soton.ac.uk         Dept. of Electronics & Computer Science
Tel. 023 8059 2817          University of Southampton
                             Southampton SO17 1BJ