Checking RAM

Whats the best way to check ram?

phpSysInfo - 2.1 is telling me that 95% of my RAM is in use but webmin says "509892 kB total / 401320 kB free"


Now I'm kinda torn and want to make sure my ram isnt really at 95%..... Whats the most accurate way to check?? Checking RAM


(Red Hat 8.0)

 

 

 

 

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