Closed Bug 1668874 Opened 4 years ago Closed 4 years ago

Loading wikipedia soon after startup can make the browser UI to be unresponsive for several seconds

Categories

(Core :: Layout: Text and Fonts, defect)

Product:
Core
Component:
Layout: Text and Fonts
Type:
defect

Tracking

()

Status:
RESOLVED DUPLICATE of bug 1669855

People

(Reporter: florian, Unassigned)

Details

(Keywords: perf)

See this startup profile: https://share.firefox.dev/2HKieVK
It contains a 7.4s jank marker, caused by doing a lot of main thread I/O to font files. This is captured on the 2017 quantum reference laptop.

The I/O is triggered by the PContent::Msg_InitOtherFamilyNames IPC that comes from the content process loading wikipedia.

Summary: Loading wikipedia soon after startup can the browser UI to be unresponsive for several seconds → Loading wikipedia soon after startup can make the browser UI to be unresponsive for several seconds

Jonathan, is this something that could be done on a different thread? (And is this a reasonable amount of time to be spending in I/O given all the fonts Wikipedia uses?)

Flags: needinfo?(jfkthame)

Duping this forward to another bug with what looks like the same issue.

Status: NEW → RESOLVED
Closed: 4 years ago
Flags: needinfo?(jfkthame)
Resolution: --- → DUPLICATE
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