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<base href="https://bugs.freedesktop.org/">
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - slash slower than cairo at rendering a pdf"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105827">105827</a>
</td>
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<th>Summary</th>
<td>slash slower than cairo at rendering a pdf
</td>
</tr>
<tr>
<th>Product</th>
<td>poppler
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
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<th>Component</th>
<td>splash backend
</td>
</tr>
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<th>Assignee</th>
<td>poppler-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>kjslag@gmail.com
</td>
</tr></table>
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<div>
<pre>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
<a href="https://arxiv.org/pdf/1701.07837v2">https://arxiv.org/pdf/1701.07837v2</a>
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:
<a href="https://arxiv.org/pdf/1508.02595v4">https://arxiv.org/pdf/1508.02595v4</a>
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
<a href="https://bugs.kde.org/show_bug.cgi?id=391972">https://bugs.kde.org/show_bug.cgi?id=391972</a>
bug was asked to submit it here instead. I apologize if this bug is considered
to be a duplicate of some similar bugs:
<a class="bz_bug_link
bz_status_NEW "
title="NEW - PDF File takes long time to render compared to the cairo backend"
href="show_bug.cgi?id=23991">https://bugs.freedesktop.org/show_bug.cgi?id=23991</a>
<a class="bz_bug_link
bz_status_NEW "
title="NEW - Opening a (small) PDF file is very slow"
href="show_bug.cgi?id=78728">https://bugs.freedesktop.org/show_bug.cgi?id=78728</a>
<a class="bz_bug_link
bz_status_NEW "
title="NEW - high cpu usage with some pdf in okular"
href="show_bug.cgi?id=81211">https://bugs.freedesktop.org/show_bug.cgi?id=81211</a></pre>
</div>
</p>
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