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Bug 1377298 - [Wayland] [Gtk3] Very high CPU load compared to generic SAL backend
Summary: [Wayland] [Gtk3] Very high CPU load compared to generic SAL backend
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: libreoffice
Version: 25
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Caolan McNamara
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-09-19 11:47 UTC by Christian Stadelmann
Modified: 2016-09-19 14:35 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-09-19 14:35:58 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Christian Stadelmann 2016-09-19 11:47:03 UTC 
Description of problem:
When running with Gtk3 SAL backend, LibreOffice is much slower than with "gen" SAL backend.

Version-Release number of selected component (if applicable):
libreoffice-5.1.5.2-6.fc24.x86_64
libreoffice-5.2.1.2-2.fc25.x86_64

How reproducible:
always

Steps to Reproduce:
1. just use LibreOffice. Compare it running with and without SAL_USE_VCLPLUGIN=gen set.

Actual results:
Gtk3 backend is very slow

Expected results:
Gtk3 backend should be faster
Comment 1 Caolan McNamara 2016-09-19 12:14:30 UTC 
Is there a difference between gtk3 on X vs wayland, cause the comparison to gen isn't helpful to isolate anything
Comment 2 Christian Stadelmann 2016-09-19 14:35:58 UTC 
(In reply to Caolan McNamara from comment #1)
> Is there a difference between gtk3 on X vs wayland, cause the comparison to
> gen isn't helpful to isolate anything

No. Gtk3 on X11 vs. Wayland doesn't show any noticeable difference. Only Gtk3 shows more CPU time compared to gen. I might just have run into bug #1373933
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