GPU (Graphics Card) Workload Usage Percentage for Apple Silicon M-series Mac? (Xcode & Swift)

[creat0r]

Is there a way to display the GPU (graphics card) workload usage as a percentage for Apple Silicon M-series Mac with Swift & Xcode? CPU monitoring works. GPU monitoring seems impossible. I only get the workload for the current app, but total GPU workload for the whole system is impossible to figure out for me. Any ideas how to do this?

 

[igormp]

You can get that with the built-in powermetrics tool:

[creat0r]

2 hours ago, igormp said:

You can get that with the built-in powermetrics tool:

This seems like it requires the users to enter their admin password every time it updates, so they have to enter their password every second... any ideas?

[igormp]

21 minutes ago, creat0r said:

This seems like it requires the users to enter their admin password every time it updates, so they have to enter their password every second... any ideas?

I'm not aware of any other APIs that province such data, so either look for another one or have your application require sudo to run

[creat0r]

11 minutes ago, igormp said:

I'm not aware of any other APIs that province such data, so either look for another one or have your application require sudo to run

Hmmm... I found this thread: https://apple.stackexchange.com/questions/430403/graphically-display-the-information-collected-by-powermetrics and it seems to be a way to do this without having to re-enter the password every second since Mx Power Gadget can read the GPU workload usage percentage without any admin password... 

[QuantumRand]

I'm not a Swift developer, but it looks like you can get system device properties with IORegistryEntryCreateCFProperties. You can get the registry entry handle from IOServiceGetMatchingServices, scoping that to your graphics device by matching by the IOAccelerator class type.

 

At the very least, that should let you see what properties are available to you from the accelerator device. Maybe there will be some performance statistics/metrics.