Windows get processor count

For example, if you have a quad core CPU and each of its physical cores can run two threads at a time, then you have 8 logical cores. Go to the Performance tab and select CPU from the left column.

It should open up the System Information app. Select Summary and scroll down until you find Processor. All systems will show the processor count on POST. Yes, which version of Windows? With Win7 or Server just type computer management in the search bar and follow the same process. You could use a script. If I remember right, only Windows will report the correct number of physical processors whereas will report the number of cores:.

Echo WScript. AddressWidth WScript. Architecture WScript. Availability WScript. Caption WScript. CpuStatus WScript. CreationClassName WScript. CurrentClockSpeed WScript. CurrentVoltage WScript. DataWidth WScript. Description WScript. DeviceID WScript. ErrorCleared WScript. ErrorDescription WScript.

ExtClock WScript. Family WScript. InstallDate WScript. L2CacheSize WScript. L2CacheSpeed WScript. LastErrorCode WScript. Level WScript. LoadPercentage WScript. Manufacturer WScript. MaxClockSpeed WScript. Name WScript. How lucky to run into this post. I was trying to find a way to get the number of available CPU cores in Node.

Happy 25th Windows 95 shipping day! And thanks for the many insights on Windows throughout the lifetime of this blog, still love to follow it since years. My Old New Thing book copy definitely needs a signature somewhen…. Connect and share knowledge within a single location that is structured and easy to search. I'm writing a program in C on windows that needs to run as many threads as available cores. But I dont know how to get the number of cores. Any ideas? Typically the logical-processors are achieved by threading.

Therefore the relation would typically go like;. Since each core serves a processing-unit, therefore with threading, logical-processing-unit is realized in real space. More info here. Detecting the number of processors. As Changming-Sun mentioned in a comment above, GetSysInfo returns the number of logical processors, which is not always the same as the number of processor cores.

On machines that support hyperthreading including most modern Intel CPUs more than one thread can run on the same core technically, more than one thread will have its thread context loaded on the same core. Getting the number of processor cores requires a call to GetLogicalProcessorInformation and a little bit of coding work. How are we doing? Please help us improve Stack Overflow. Take our short survey.