I have a kernel version problem: 2.6.10 and 2.6.11 are much slower than 2.6.9 in Fedora Core 3 within a certain function. One machine runs 8.03, 512 MB, XP2100. Times: 2.6.11 and 2.6.10 - 83 minutes. 2.6.9 - 32 minutes In another FC3 machine, 8.0.1, 1 GB, P4 2.4, the times are 35 and 5 minutes respectively. I think memory size and a faster HD are probably the cause for the difference between machines. But I don't care about the machines differences but I care about the kernel differences. Due to the huge performance difference I'm stuck with 2.6.9. Since I'm not knowledgeable enough to find the source of the kernel problem I'm asking if someone could try it. I prepared the files to download from http://txt.fahstats.com : restorecontext.sh - creates a test database and loads a table and a function testit.sh - runs the function usuarios_producao.txt.bz2 - table dump 3.9 MB create_function_update_ranking_usuarios.sql - function postgresql.conf To test run restorecontext.sh then testit.sh By the way, if someone knows a better way to update a ranking table, please let me know. Regards, Clodoaldo Pinto ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster