Would someone help me what could I do to optimize Postgre's work.

I use all the optimization options in it's config.

If you want http://whereabout.mail333.com/db/ - sources for my test programs
BAdd.java - servlet for MySQL (i use my own pool there)
BAdd2.java - servlet for PostgreSQL (i use my own pool there)add.my.php.asis - php for MySQL
add.pg.php.asis - php for PostgreSQL
all.sql - DB structure
fortests.tar.gz all above in gzip.

I would really apriciate all the help.