Poor performance

Hi all

I'am trying to configure PostgreSQL 7.1.3-2 with cygwin on a Win 2000 box
(Compaq Proliant ML370, Bi PIII 1GHz, 1 Go RAM)

For testing, I use pgbench and I obtain very poor results. Very often,
PosgreSQL hang for about 10 clients. 
The CPU use is very low (~< 5 %)

The version are
    crypt 1.0.1
    cygipc 1.11-1
    readline 4.4- or 4.2 ??
    zlib 1.1.3-7
    cygwin 1.3.9-1

Here are the configuration file and log


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Any help would be greatly appreciated

Regards


Michel BELLON
LCIE - Méthodes/Informatique appliquée
33 (0)1 40 95 60 35
http://www.lcie.fr