dotnet trace --format speedscope does not contain an All Threads item #3493
Description
Background and Motivation
I've been using dotnet trace with speedscope, and you can only look at one thread at a time. It would be very useful to look at all the threads at once.
Proposed Feature
Add an entry in the speedscope report format that contains the aggregated information of all the threads.
Usage Examples
No change in user interaction with dotnet-trace itself.