How to get the number of cores of an android device

Question

I was looking to determine(or count) the number of cores in the embedded processor of android device.

I tried using /proc/cpuinfo, but it is not return

Answer 1

Try this:

Runtime.getRuntime().availableProcessors();

This returns the number of CPU's available for THIS specific virtual machine, as I experienced. That may not be what you want, still, for a few purposes this is very handy. You can test this really easily: Kill all apps, run the above code. Open 10 very intensive apps, and then run the test again. Sure, this will only work on a multi cpu device, I guess.