If I manually do some actions on files, the freemem decrease to 16-20 Mb, It's ok. But just after that the freemem grow from 2 to 5 Mb/s and the cached memory lose that memory. :?
My webservers use a lot of files, mysql too. This memory problem decrease performances.
I don't use special kernel tweaks and the lsws configuration I use is not exotic... I have this problem on 5 servers. They run mainly lsws/lsphp and some mysql.
Do you know where the problem come from or if it is lsws or not ?