I have used the PPK several times over the last 2-3 years and it usually works fine. Today I downloaded the latest versions of the tools on two Macs: One is a 2021 Intel I9 system and the other is a 2021 M1 Mac. Both systems have plenty of RAM and no other applications running. CPU is basically idle when starting nRF Connect.
Both systems show the same problem while running the power profiler in the data logger view. The data is scrolling from right-to-left at about 1/4 speed. The scrolling is far too slow to be usable because I need to see the data in real time.
I can measure the scrolling speed by turning on the x-axis timestamps and pressing [Start] button and then stopping after four seconds. At this point the x-axis shows only about 1 second of data. Now if I unplug my DUT and press the [Start] button again the power chart will continue to scroll from right-to-left and show data that was captured BEFORE I unplugged the DUT! It appears the data is getting captured correctly, however the tool is just not able to draw the chart fast enough to keep up with the incoming data.
The Mac activity monitor shows the nRF Connect process running at about 130% when the profiler is running. Overall system load is 78% idle.
Here is my test environment:
PPK1 PCA63511 REV 1.1.0 2018.26
DUT is a custom board based on the nRF52840
nRF Connect for Desktop v3.10.0
Power Profiler v3.4.2
Tried two versions of JLINK: v7.58b and v7.62
MacOS 12.1
