Ok thanks tom, what shall we do without U ? by the way I have look at my kernel and getrusage() is well configure and return good results. i/o stats too. I test an other version of postgresql and now, it works fine. It' seems to be an install bug. thx regards, Alban Médici on 08/10/2004 15:55 Tom Lane said the following: =?ISO-8859-1?Q?=22Alban_M=E9dici_=28NetCentrex=29=22?= <[EMAIL PROTECTED]> writes:Thanks for your repply, but I still don"t understand why the statistic logs : ! 0/0 [0/0] filesystem blocks in/out it told me there is no hard disk access, I'm sure there is,Complain to your friendly local kernel hacker. We just report what getrusage() tells us; so if the number is wrong then it's a kernel bug.regards, tom lane -- Alban Médici R&D software engineer ------------------------------ you can contact me @ : IPPhone : +33 (0)2 31 46 37 68 [EMAIL PROTECTED] http://www.netcentrex.net ------------------------------ |