Bug 213504

Summary:

REGRESSION (iOS 14) Transition animations slower than iOS 13

Product:

WebKit

Reporter:

Niklas Merz <niklasmerz>

Component:

Animations

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED DUPLICATE

Severity:

Normal

CC:

dino

Priority:

Keywords:

PerfRegression

Version:

Safari Technology Preview

Hardware:

iPhone / iPad

OS:

Other

URL:

See Also:

Attachments:

Description	Flags
Comparison running on iOS 13 and 14.	none
iOS 14	none
iOS 13	none

Niklas Merz

Reported 2020-06-23 02:13:31 PDT

Created attachment 402540 [details] Comparison running on iOS 13 and 14. I just tested a web app with the brand new iOS 14 developer beta. The page transitions are noticeably slower then we are used to with iOS 13. See a repro app on https://ios-repro.web.app/list and the videos attached. The issue is similar but not exactly the same as a bug in iOS 13: https://bugs.webkit.org/show_bug.cgi?id=201048

Attachments
Comparison running on iOS 13 and 14. (6.63 MB, video/mp4) 2020-06-23 02:13 PDT, Niklas Merz	no flags	Details
iOS 14 (2.63 MB, video/mp4) 2020-06-23 02:15 PDT, Niklas Merz	no flags	Details
iOS 13 (1.12 MB, video/mp4) 2020-06-23 02:15 PDT, Niklas Merz	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Niklas Merz

Comment 1 2020-06-23 02:15:33 PDT

Niklas Merz

Comment 2 2020-06-23 02:15:56 PDT

Niklas Merz

Comment 3 2020-06-23 06:47:40 PDT

Sorry this has already been reported with a good reproduction. This is a duplicate of https://bugs.webkit.org/show_bug.cgi?id=213495 *** This bug has been marked as a duplicate of bug 213495 ***

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