Thanks to the work of Christian Gmeiner, support for annotating time regions using Sysprof marks has landed in Mesa.
That means you’ll be able to open captures with Sysprof and see the data along other useful information including callgraphs and flamegraphs.
I do think there is a lot more we can do around better visualizations in Sysprof. If that is something you’re interested in working on please stop by #gnome-hackers on Libera.chat or drop me an email and I can find things for you to work on.
See the merge request here.