I am using the version v2020.1.0.4172020 of the snapdragon profiler to collect CPU and GPU performance counters. The used plateform is the Google Pixel 2 XL (the 835 Soc)
I performed the data collection using the realtime mode. However, when exported the data (csv file) and looked at the timestamps vector/column I noticed that :
- Not all the performance counters have the same time samples. In other words, even if I am using the same sampling rate for all the performance counters, and starting the data collection at the same time, it seems that not all the performance counters are collected at a specific time.
- The starting and ending time of the data collection of each PC varies. Even if I launched the realtime collection for all the counters at the same time.
- The number of collected samples per performance counter vary, which is one hand related to the start and end time, but I guess it might be also related to inconsistent sampling rate accross different PC.
Briefly, I want to be able to collect the list of all the CPU-GPU performance counters that I choose at the same timestamps. Is this known bug ? or is there a better way to do this ?