Hi PostgreSQL7.1 is now running on AIX5L( S85, 6GB memory, 6CPU), which was running on Linux before(Pentium3, 2CPU, as far as I remember.......sorry......). The performance( on AIX5L ) is just half as good as the one( on Linux ). I compiled PostgreSQL on AIX5L ofcourse. I haven't configured it when migrating to AIX5L though. Are there any problems in not tuning when migrating it to AIX5L? What should I check first? I can't make a head or tail of it:( Help!! Best regards, Shuichi ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl