We have Redhat AS 3.0 Update 3(2.4.21-20.ELsmp) running on a x86 box. After half an hour of use the memory goes 100% and almost no swap is ever used. The free command shows a lot of memory is used for pagecache. I changed the proc/sys/vm/pagecache, add the entry in /etc/sysctl.conf, and did a /etc/sysctl -p, and changed the inactive_clean_percent to 100, but still no change. Does this parameter work?? Is there any other solution for this.. Thanks in advance.