What should I do if the average usage of php linux memory exceeds 90%?

the average utilization rate of the content of the security software installed on the linux system is more than 90%. How to do this

Php
Jun.18,2022
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linux, if the memory calculation includes buff/cache , 90% of the memory is normal. There is no need to ignore it. You can set the relevant parameters min_free_kbytes if you have to adjust it. Of course, you can also use top and so on to see if a single process takes up a lot of memory.

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