On May 25, 1:53 pm, hasta..._at_hotmail.com wrote:
> On 25 mai, 19:33, zigzag..._at_yahoo.com wrote:
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> > On May 25, 1:23 pm, hasta..._at_hotmail.com wrote:
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> > > On 25 mai, 00:43, zigzag..._at_yahoo.com wrote:
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> > > > I have worked so many projects using [the three-tier]
> > > >architecture and performance has never been an issue.
>
> > > Zigzag,
>
> > > If you don't mind, and for better mutual understanding, would
> > > it be possible to have a (very rough) idea of some metrics
> > > for one of these systems ?
>
> > > I'm notably thinking of system purpose and :
>
> > > - size of stored data (in your prefered unit)
> > > - size of daily data growth
> > > - number of simultaneous users (peak would be most welcome)
> > > - average and guaranteed response time for user interface operations
> > > - number of transactions over your prefered time period.
> > > (peak would be most welcome)
>
> > > Really interested. Thanks much.
>
> > > --- Raoul
>
> > Performance is very complex subject with so many variables, In many of
> > our projets there were a few people assigned to do performance
> > measueremts on frequenetly used transactions by users and batch
> > processes.
> > Our databasewere up to 100GB large. 95% of our queries were indexed
> > based. Systems are used by up to 100 concurrent users
> > Hope it helps.
>
> yes, it helps a lot to get a concrete idea, Zigzag.
>
> I forgot to ask which kind of hardware you use for
> such a system, sorry
>
> --- Raoul- Hide quoted text -
>
> - Show quoted text -
HP UNIX boxes database server. Windows boxxes - application server.
Usre interface are web based.
Received on Fri May 25 2007 - 15:47:14 CDT
