1161906 - Update JavaScript call tree live, while collecting samples.

Status: RESOLVED WONTFIX

(DevTools :: Performance Tools (Profiler/Timeline), defect, P3)

Description

[Michael Bebenita [:mbx]]

Apple Instruments updates the call tree information as it collects samples. Is there any technical reason why we can't do this as well?

Comment 1

[Jordan Santell [:jsantell] [@jsantell]]

This would most definitely require rewriting the nsIProfiler. On the client side, would be a lot of data going over RDP, which might make things smooth rather than a huge (but somewhat allowable) transfer/parse/render chain at the very end, or it could slow down things during the recording, so not sure if that'd be a pro or a con. Main thing though is nsIProfiler. Ccing Shu/Kannan

Comment 2

[Victor Porof [:vporof][:vp]]

(In reply to Michael Bebenita [:mbx] from comment #0)
> Is there any technical reason why we can't do this as well?

It's mostly because streaming the call tree is slow between the server and frontend. Streaming diffs between trees could be a potential solution, but very funky.

Call tree rendering is also a bit slow now, but I suspect we can make it much faster.

Comment 3

[Victor Porof [:vporof][:vp]]

Triaging. Filter on ADRENOCORTICOTROPIC (yes).