LabVIEW
CPU performance monitor?
@Andrey_Dmitriev wrote:
works like charm in LabVIew 2020 64bit on Windows 11
on a side note: you can use a stacked, not transposed waveform chart to compare the cpu % for each core.
@1984 wrote:
For me the total CPU usage (displayed in the task manager) should be: sum(proc% for each cores) / number of cores, but the number I get is significantly different than what I see in the task manager.
If you would like to get overall utilization, then you should use \Processor(_Total)\% Processor Time performance counter, (of course, you can combine multiple counters if needed) something like that:
hope it helps,
Andrey.
@1984 wrote:
I'm not sure if its just me but the numbers dont really add up. For me the total CPU usage (displayed in the task manager) should be: sum(proc% for each cores) / number of cores, but the number I get is significantly different than what I see in the task manager.
processor>% processor time includes a built in _Total that you can use for reference
turns out, this built-in total is quite the same as a total from the formula = sum(proc% for each cores) / number of cores
I use the chart in https://forums.ni.com/t5/Example-Code/Performance-Monitor-Using-LabVIEW/ta-p/3501988 to log all processor time values
I used 7-Zip Benchmark to create a reproducable load, which is depicted in my chart and graphs
Then, I just copy and past the Chart to a new .vi and look at the Chart History (default length: 1024)
@alexderjuengere wrote:
I used 7-Zip Benchmark to create a reproducable load, which is depicted in my chart and graphs
Why need 7-zip and do not use such a great tool called LabVIEW?
Timed Loops can be assigned to physical CPUs, and at works (well, a little bit tricky if hyperthreading is enabled, but anyway). Another possibility is to use CPUStress from SysInternals, where you can assign affinity mask to individual cores: https://learn.microsoft.com/en-us/sysinternals/downloads/cpustres
