CPU usage of PHP instances -

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i have multiple php instances on bluemix account. api service collected cpu, memory , disk stats these php instances.
when php instance busy, cpu usage on 200. value shown in dashboard of bluemix php instance.

how possible?
because php instance works on multiple cpus?
if so, how can retrieve number of cpus of php instance?

the cpu usage of application instance can range 0% (no cpu used) number of logical cpus on dea\host * 100% means if application dea 2 core cpu, cpu usage app may 0%~200%.

i found useful link https://github.com/cloudfoundry/dea_ng/issues/93 discussed same question , seems can't retrieve number of cores.


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