> I suggest you check this first. Check the performance tuning guide..
> That is a starters. As Josh suggested, increase checkpoint segments if you 
> disk space. Correspondingly WAL disk space requirements go up as well.

Well, not if he has fsync=off.   But having fsync off is a very bad idea.  You 
do realize, Herve', that if you lose power on that machine you'll most likely 
have to restore from backup?

-Josh Berkus
 Aglio Database Solutions
 San Francisco

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