Performance Profiler does not show WebAssembly function names

NEW
Unassigned

Status

()

Firefox
Developer Tools: Performance Tools (Profiler/Timeline)
P2
normal
7 months ago
7 months ago

People

(Reporter: Jukka Jylänki, Unassigned)

Tracking

Firefox Tracking Flags

(Not tracked)

Details

Attachments

(2 attachments)

(Reporter)

Description

7 months ago
Created attachment 8849585 [details]
profiler_wasm_code.png

STR: https://s3.amazonaws.com/mozilla-games/ZenGarden/EpicZenGarden.html?novsync&cpuprofiler

Capturing a profile looks like as in attached screenshot, i.e. the function names are missing from WebAssembly functions.

Taking a profile of the same page with gecko profiler does show the function names.

See also bug 1265526.
(Reporter)

Comment 1

7 months ago
Created attachment 8849586 [details]
profiler_asmjs_code.png

Expected run should have function names, like in this attached screenshot.
Assignee: nobody → jujjyl
(Reporter)

Updated

7 months ago
Assignee: jujjyl → nobody
I'm going to mark this as P2. But I'm also going to cross-reference this with perf.html to make sure we get this right there. I think some assumptions about the data we get back are wrong here. This is a great test case.
Priority: -- → P2
Oh, and thank you for filing this, this is a great report.
Tracking on perf.html here: https://github.com/devtools-html/perf.html/issues/209
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