Cpuinfo for mac activation code#
Cpuinfo for mac software#

When this question was asked the OP did not say that he wanted the number of LOGICAL cores rather than the actual number of cores, so this answer logically (no pun intended) answers with a way to get the actual number of real physical cores, not the number that the OS tries to virtualize through hyperthreading voodoo.Дue to a weird bug in OS X Yosemite (and possibly newer versions, such as the upcoming El Capitan), I've made a small modification. Hw.logicalcpu_max: The maximum number of logical processors that could be available this boot. Hw.logicalcpu: The number of logical processors available in the current power management mode. Hw.physicalcpu_max: The maximum number of physical processors that could be available this boot. Hw.physicalcpu: The number of physical processors available in the current power management mode. Cross-platform availability: Linux, Windows, macOS. This number can change when power management modes are changed. cpuinfo is a library to detect essential for performance optimization information about host CPU. Use this number to determine the number threads to create in SMP aware applications. 1 root root 0 Mar 26 22:45 /proc/cpuinfo But take a closer look. Looking at the file itself it would appear to be 'just a file'. Hw.activecpu: The number of processors currently available for executing threads. From the above output you can see that /proc/cpuinfo is just a regular file, or at least would appear to be one. Use this value for sizing of static per processor arrays i.e. You can simply view the information of your system CPU by viewing the contents of the /proc/cpuinfo file with the help. With that said, below are 9 commands for getting info about your Linux CPU. Hw.ncpu: The maximum number of processors that could be available this boot. Essentially, the /proc/cpuinfo contains this all info, every other command/utility gets its output from this file.

Interesting values to use in place of 'hw.logicalcpu', which counts cores, are (from this comment in the kernel source):

Cpuinfo for mac software#

The application is a small software application whose purpose is to help you keep an eye on your CPU performance in real-time and check out the amount of time that has passed since the OS has booted.

Cpuinfo for mac activation code#

Sysctlbyname('hw.logicalcpu', &count, &count_len, NULL, 0) ДЇprintf(stderr,'you have %i cpu cores', count) CpuInfo Activation Code stands for Core Performance Information. To do this in C you can use the sysctl(3) family of functions: int count