As an alternative, simply reboot the server whenever response time slows to an unacceptable level. Oh, say 30+ seconds for a response is my maximum lag threshold, although others might say 5 or 10 is really a maximum.
How often should we reboot the server?
Well, that depends on how long a reboot takes. If it takes 3 minutes to reboot, why not reboot once an hour? Or if it takes 10 minutes to reboot, why not reboot every 3 hours?
Come on, people, this is not rocket science!! At least reboot once a day.
-- An increasing frustrated and impatient "Uncle Ed" Poor