1434815 - Support profile only certain processes

Status: NEW

(Core :: Gecko Profiler, enhancement, P3)

Description

[Xidorn Quan [:xidorn] UTC+10]

Currently the Gecko Profiler would profile all processes together, however people may not always need that. Sometimes people may only want to profile some processes (content process / chrome process / GPU process), or even one specific process.

It's probably helpful to have an extra button beside "Start" to adjust what process to profile.

Comment 1

[Julien Wajsberg [:julienw]]

Isn't it what kats added with the "pid:" syntax ? (I don't find the bug # at the moment)

Comment 2

[Markus Stange [:mstange]]

Bug 1444765 - that syntax allows profiling only a single process, but it'll end up profiling *all* threads of that process. We don't currently have a way to ask for a specific set of threads, of a given process. We also don't have a way of matching only certain "types" of processes.

Comment 3

[Dave Hunt [:davehunt] [he/him] ⌚BST]

:gerald is this a duplicate of bug 1730239?

Comment 4

[Gerald Squelart (he/him) (not at Mozilla since 2022-09-15)]

(In reply to Dave Hunt [:davehunt] [he/him] ⌚GMT from comment #3)

:gerald is this a duplicate of bug 1730239?

bug 1730239 added a way to profile a single process.

This bug here is broader, also requesting ways to profile multiple processes of a certain kind. I'm guessing this would be chosen through about:profiling, which didn't exist yet when this bug was first filed.
So I think it's worth keeping open in case we can, and want to, do it one day...