Closed Bug 1374375 Opened 7 years ago Closed 7 years ago

JS profiles do not get a pseudo stack in the beginning of a speedometer run

Categories

(Core :: JavaScript Engine, defect, P3)

Product:
Core
Component:
JavaScript Engine
Type:
defect

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1393046
Project Flags:
Performance Impact low

People

(Reporter: ehsan.akhgari, Unassigned)

References

(Blocks 2 open bugs)

Details

See this profile http://bit.ly/2sKyVHK (for which I filed bug 1374014). I tried to profile this a bunch of times both running subtests of Speedometer and the entire suite. This expensive regex parsing happens in the beginning every time (IIRC you had to reload the page for it to show up) but we never get a pseudostack for the JS code corresponding to it.)
I see "RegExpBuiltinExec self-hosted:4677" on the stack. Is that not the JS frame that you want?
The patch in bug 1393046 may have fixed this for real.
Ehsan please verify if this is fixed as per #2
Flags: needinfo?(ehsan)
Priority: -- → P3
Whiteboard: [qf:p3]
Yes, looks fixed: https://perfht.ml/2kCVonc
Status: NEW → RESOLVED
Closed: 7 years ago
Flags: needinfo?(ehsan)
Resolution: --- → DUPLICATE
Performance Impact: --- → P3
Whiteboard: [qf:p3]
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