Re: Strange behaviour of Postgresql (Postgresql 7.3.3

On Thu, 17 Jul 2003, Markus Heinz wrote:

> Hello,
>
> i'm evaluating Postgresql on win32 (winnt, win2k). I'm using a small java benchmark from FirstSQL (see attachments).
> I've ran the benchmark on three pc's
> 1) Pentium III 750 MHz Winnt Sp6a, 372 MB PC100 RAM, IBM 26GB HD 7200RPM
> 2) Pentium 4 1.4GHz Win2k SP4, 256MB RRAM, WD 20GB HD 7200RPM
> 3) Athlon XP 2400+ Win2k SP4, 512 DDR 266, Seagate 120GB HD 7200RPM
>
> using identical cygwin and PeerDirect configs on all PCs.
> To my surprise the Pentium III on Winnt was three times faster than the Pentium IV 1.4 GHz
> and two times faster than the Athlon XP 2400+.
> Are there known problems with postgressql and Win2k SP4 ?

No, Microsoft decided to basically change the preferred method for
applications to talk to each other with the release of win2k. while Winnt
had fast IPC, (the IPC that cygwin uses relies on it) 2k had much slower
stock IPC. There are a few articles floating around the net about it.
It's one of the reasons many older NT servers are still running, because
the software running on them will be slower on machines running 2k and
above.