cputask-managerwindows 10
The Performance tab of the Task Manager shows this:
i.e. the CPU usage, and the number of cores (and logical cores) I have available.
Can I get a graph like this for each core to see whether something is indeed running parallel or not (e.g. some multiprocessing stuff on Python)?
Each for one processor core. Unless it is an Intel chip with Hyperthreading (HT), in which case there are two panes per core, one for each core and one for its HT. For example, a quad-core chip with HT will show eight panes rather than four.
To see individual graphs, "Change graph to" > "Logical processors"
The task manager can also show a heat map of the cores to better show what they are doing (instead of having tiny graphs). This means that if you have a large number of cores (eg. 160), it will be easier to interpret the data:
More tips on using the task manager can be found at 8 Windows 8 Task Manager Tips
Sources:
Best Answer
Right click on graph -> Change graph to -> Logical processors
It will show you the usage of each logical processor.