High peak CPU (iPlanet Appliation Server test with loadrunner)
Hi all ,
I tested the iPlanet Application server 's Demo servlet "fortune" with 30 loadrunner Vusers ,but got the surprising result. the peak CPU Usage is very high,almost 100.
iPlanet runs in a SUN E450 Box.
pls help me out of the bad result ? is the peak CPU Usage the critical factor in a loadtest.
Re: High peak CPU (iPlanet Appliation Server test with loadrunner)
It depends on how long the CPU peaks for. Generally a CPU should stay below 75 80 percent utilization during most the test. Some companies have stricter rates. For instance a sustaned utilization above 50% for our servers is bad. CPU is one of the things to look at. Even our fastest servers spike to 100% when we start our tests (depending on the test and how hard we hit the server).
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