Performance problema with cpu and memory.

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http://www.linuxquestions.org – Hello, I´ll appreciate your help with the following problem or derivate my questions to the appropiate área. I must to check a lot of Linux Interprise servers, and in the most of they i have found problems with memory and cpu, the use near to 100%. (for that i use top and free -m commands). My questions for the fórum are: 1.- What command is the best to monitoring this problems? 2.- What else could I check?. I already checked the processes with ps-fea. 3.- Reading in internet i found this command in order to free memory (sync; echo 3 > /proc/sys/vm/drop_caches. I (HowTos)