linux perf: how to interpret and find hotspots

Question

I tried out linux\' perf utility today and am having trouble in interpreting its results. I\'m used to valgrind\'s callgrind which is of course a totally different approach

Answer 1

You should give hotspot a try: https://www.kdab.com/hotspot-gui-linux-perf-profiler/

It's available on github: https://github.com/KDAB/hotspot

It is for example able to generate flamegraphs for you.