George Harker

By way of sharing thoughts and opening a discussion, #4557 might be a place to start.

Done! > Hey 👋 > > Good work! > > It seems that you still need to insert the `thread_start_times` field in `Session.from_json` & `Session.combine` Done!

There were some unresolved comments that I can help with (though a little snowed under work wise). I don't think it's super far off

Take a look at the referenced PR - it does much of that but also allows viewing the timelines of all threads together.

Yeah there's still work to do there for sure! Just did enough for my needs and wanted some feedback about what it would look like to get it into a...

The changes for xcffib are now in, I'd love to work with you on getting this to a similar state. There are some reports that the new xcffib isn't playing...

@SimonSapin would you be able to take a look?

Yes, it's for speed. But the difference can be very significant. I understand the reticence to introduce any instability, however in the long run - in theory - api mode...

FWIW I understand pangocffi was willing to look at this if Cairocffi can be updated.

The relevant part of the cffi docs here https://cffi.readthedocs.io/en/stable/overview.html#abi-versus-api lists reasons (in addition to performance) to prefer API mode.