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Limit cpu and memory usage for php-fpm and nginx processes in centos

I want to Limit cpu and memory usage for php-fpm and nginx processes in centos. I came across following tools cpulimit cggroups memory resource locater which will more efficient and how can I ...
6
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2answers
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What do top's %MEM and VSZ mean?

I'm working on an embedded Linux system (128MB RAM) without any swap partition. Below is its top output: Mem: 37824K used, 88564K free, 0K shrd, 0K buff, 23468K cached CPU: 0% usr 0% sys 0% nic ...