I’m using sysconf( _SC_NPROCESSORS_ONLN )
(which, I believe, is the recommended way) to get the number of CPU cores. It works fine or Mac and Linux, but on my 4-core Android tablet it returns 2. How can I get the actual number of cores on Android from native code (without using JNI to call Java Android API)?
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Answer
Neither sysconf( _SC_NPROCESSORS_ONLN )
nor sysconf( _SC_NPROCESSORS_CONF )
works, but android_getCpuCount()
from cpufeatures NDK library works correctly.