[Webkit-unassigned] [Bug 250829] New: MiniBrowser takes 12s to render https://www.wikipedia.org
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Thu Jan 19 02:29:45 PST 2023
https://bugs.webkit.org/show_bug.cgi?id=250829
Bug ID: 250829
Summary: MiniBrowser takes 12s to render
https://www.wikipedia.org
Product: WebKit
Version: Other
Hardware: PC
OS: Linux
Status: NEW
Severity: Major
Priority: P2
Component: WebKitGTK
Assignee: webkit-unassigned at lists.webkit.org
Reporter: antonio at vieiro.net
CC: bugs-noreply at webkitgtk.org
# Platform:
- Ubuntu 22.04
- uname -srvmpio: Linux 5.15.0-10057-tuxedo #63tux3 SMP Thu Jan 12 14:42:43 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
- AMD Ryzen 7 5700U with Radeon Graphics / 64Gb RAM
# WebKitGTK versions
Happens on both
- libwebkit2gtk-4.0-37:amd64 2.38.3-0ubuntu0.22.04.1 amd64 Web content engine library for GTK
- libwebkit2gtk-4.1-0:amd64 2.38.3-0ubuntu0.22.04.1 amd64 Web content engine library for GTK
# Steps to reproduce:
1. Open https://www.wikipedia.org in MiniBrowser
$ /usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/MiniBrowser https://www.wikipedia.org/
The system goes to 100% CPU on one of the cores during about 12 seconds. The core with high CPU changes over time.
- MiniBrowser seems unresponsive while loading (resizing the window does not resize the webview).
- Once the page loads, resizing MiniBrowser's window seems to do some flickering, high CPU consumption.
- NOTE: This page has several SVG images.
2. Close MiniBrowser and reopen with url https://webkitgtk.org/
$ /usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/MiniBrowser https://webkitgtk.org/
- The page loads very fast.
- No observable flickering when resizing the window. Less CPU consumption.
3. Close MiniBrowser and reopen with url https://github.com/
$ /usr/lib/x86_64-linux-gnu/webkit2gtk-4.1/MiniBrowser https://github.com/
- The page loads not so fast, CPU has a 40-60% spike.
- Some observable flickering when resizing the window (webview resizing lags when resizing horizontally).
# Expected behaviour
All pages should load quickly :-).
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