Bug 259308 - Selecting text in large webpages is very slow
Summary: Selecting text in large webpages is very slow
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: Safari 16
Hardware: Mac (Apple Silicon) macOS 13
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2023-07-18 09:13 PDT by tellowkrinkle
Modified: 2023-07-25 09:14 PDT (History)
7 users (show)

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Description tellowkrinkle 2023-07-18 09:13:10 PDT 
To reproduce:

1. Load the Vulkan spec in Safari: https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html
2. Once it's finished loading, try to select some text
3. Do the same in Firefox

Expected result:
Selecting text doesn't lag

Actual result:
Firefox works fine, but in Safari, the highlight updates at a few fps
Comment 1 Radar WebKit Bug Importer 2023-07-25 09:14:15 PDT 
<rdar://problem/112837706>