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????1??CPU?????

????2??Memory?????

????3??QPS

????4????????

????5??????IO

????6?????IO

????7???????IO

????8????????????

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????Loadrunner??????Э??

????Loadrunner?????

????Loadrunner??Controller/Agent

????Jmeter??Remote testing

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?????????ε???????????????????????????????????????????????????????????????????Щ????????Httpwatch??Yahoo YSlow??Google speed tracer??