> >I have an idea to better use all the processor :
>
> Why not use Classic server?

hmm, because in classic server EACH connection will have his own
dedicated cache !

i want that the 100 connections on the database 1 use the same shared
cache and that the 20 connections on the database 2 use the same shared
cache. as the cpu usage of both the database is 50 % i will have
something good if i have dual cpu !