hi,

i done some tests on W2k with 2CPUs and SCSI....
Superserver is not working in SMP correctlly. It is aprox. 30% slower then
on 1CPU machine...
Classic server is 90% faster on 2CPU machine compared to 1CPU...

All this results are correct only on small and well indexed database...

When you use large database and natural orders classic server is aprox 5%
slower on 2CPUs, becouse there was hard load to disk, large SCSI queues and
so on... This happend on 1,4 Gb database with natural order of all
records...

p.

----- Original Message -----
From: "Roman Rokytskyy" <rrokytskyy@...>
To: <ib-support@yahoogroups.com>
Sent: Tuesday, November 12, 2002 2:12 PM
Subject: [ib-support] Re: SMP with Firebird on Linux


> > May be someone on the list uses Firebird 1.0 on a multiprocessor
> > machine and did some performance tests comparing SuperServer and
> > Classic server.
>
> I did some multithreaded tests in Java using JayBird JDBC driver, and
> Classic server on IBM's Netfinity machines with 2 processors, SCSI
> hard drives, Suse Linux, and it was faster than SuperServer. I do not
> remember times (it was almost half a year ago), but seems to be > 2
> times.
>
> Since than I'm using CS.
>
> Best regards,
> Roman Rokytskyy
>
>
>
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