Closed Bug 1602510 Opened 5 years ago Closed 3 years ago

Visual metrics: Fenix is slower than Fennec for the site https://stackoverflow.com/questions/927358/how-do-i-undo-the-most-recent-commits-in-git

Categories

(Core :: Performance, defect)

Product:
Core
Component:
Performance
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED WONTFIX
Project Flags:
Performance Impact medium

People

(Reporter: sefeng, Unassigned)

References

(Blocks 1 open bug)

Details

(Keywords: perf:pageload)

The test was done by comparing Fennec (68.2.1) and Fenix(20191119043902). For instance, the speedIndex of Fennec is 595.33 and is 863.27 for Fenix, the differences are noticeable by looking at the video.

Full Results

Depends on: 1602513
No longer depends on: 1602513
No longer depends on: 1602506, 1602508
Whiteboard: [qf]
Whiteboard: [qf] → [qf:p2:pageload]
Blocks: 1604248
Depends on: 1618678
Performance Impact: --- → P2
Keywords: perf:pageload
Whiteboard: [qf:p2:pageload]

Bulk edit: closing "Visual metrics: fenix is slower than fennec" bugs. There may be optimizations in fennec that we haven't applied to fenix and we can learn that by investigating bugs like these. However, given current priorities/resourcing, the challenges in executing tests against fennec, and the difficulty of directly comparing fennec and fenix (e.g. some ways of initiating page load favor fennec's single process model), it seems unlikely we'll investigate this any time soon. If we did decide to investigate this, we'd probably file a new bug anyway so closing.

Status: NEW → RESOLVED
Closed: 3 years ago
Resolution: --- → WONTFIX
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