Side by side debugging of two recordings of the same program

[HighCommander4]

One way I sometimes use rr is to replay two recordings simultaneously, stepping through each one in tandem to understand where/why they diverge in behaviour.

The two recordings are typically of the same binary, run on a different input file or with different runtime configuration options. This means that the two rr instances can be looking at the same source tree.

For command line usage, this is fairly straightforward to achieve, e.g. I just take the two recordings, and then run rr replay <trace> side by side in two different terminals.

I'm wondering how this workflow could translate to GUI usage with Midas. Is there some way to launch two replays in the same workspace? I understand this might be challenging due to VSCode limitations (e.g. only having one window per workspace), but I thought I'd ask.

[theIDinside]

VSCode does have the notion of "sessions" that could potentially solve this. You should be able to just click the "launch replay session" and it should open up a new session. I think switching between them has a shortcut-ready command (look for ctrl+shift+p and enter Debug: Select debug session I think this can be configured to a shortcut.