Bug 105827

Summary:	splash slower than cairo at rendering a pdf
Product:	poppler	Reporter:	Kevin <kjslag>
Component:	splash backend	Assignee:	poppler-bugs <poppler-bugs>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium	CC:	4pfq30f5e8ee, kjslag, m.weghorn
Version:	unspecified
Hardware:	x86-64 (AMD64)
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Kevin 2018-03-30 23:22:25 UTC

Okular renders some pdfs much slower than Evince, even though both use Poppler for the pdf backend. Apparently, this is because Evince uses the cairo backend of Poppler, while Okular must use splash.

For example, the second page of this pdf
https://arxiv.org/pdf/1701.07837v2
takes over 3 seconds for Okular to render. However, Evince renders it almost instantly.

Or when quickly scrolling through a large pdf, Evince seems to render the pages almost instantly, while Okular renders slower than I can (quickly) scroll. Here is an example large pdf:
https://arxiv.org/pdf/1508.02595v4

I'm using Okular 1.3.3, Evince 3.26.0, and poppler 0.61.1 on Archlinux (with an Intel i7-3720QM @ 2.6GHz).

I initially submitted this bug at
https://bugs.kde.org/show_bug.cgi?id=391972
bug was asked to submit it here instead. I apologize if this bug is considered to be a duplicate of some similar bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=23991
https://bugs.freedesktop.org/show_bug.cgi?id=78728
https://bugs.freedesktop.org/show_bug.cgi?id=81211

Comment 1 GitLab Migration User 2018-08-21 10:36:39 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/poppler/poppler/issues/285.

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