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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Render is very slow for some files"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76821">76821</a>
</td>
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<th>Assignee</th>
<td>poppler-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>Render is very slow for some files
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>aikorsky@gmail.com
</td>
</tr>
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<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
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<th>Component</th>
<td>general
</td>
</tr>
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<th>Product</th>
<td>poppler
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=96640" name="attach_96640" title="Visualization of a part of a call graph">attachment 96640</a> <a href="attachment.cgi?id=96640&action=edit" title="Visualization of a part of a call graph">[details]</a></span>
Visualization of a part of a call graph
Problem is similar to <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - 100% CPU usage on files with GfxICCBaseColorSpace use"
href="show_bug.cgi?id=66928">https://bugs.freedesktop.org/show_bug.cgi?id=66928</a>.
Tested on poppler-0.25.2
Configuration: ./configure --prefix=/usr --sysconfdir=/etc \
--localstatedir=/var --disable-static \
--enable-cairo-output \
--enable-xpdf-headers \
--enable-libjpeg --enable-zlib \
--enable-poppler-qt4 \
--enable-poppler-glib
Example file located here <a href="https://razor.blackbeam.org/x.pdf">https://razor.blackbeam.org/x.pdf</a> (sorry for expired
certificate).
Also here is callgrind output <a href="https://razor.blackbeam.org/callgrind.out">https://razor.blackbeam.org/callgrind.out</a> (can be
viewed with kcachegrind).
Also i attached a call graph visualization.
cmsDoTransform is called 6814 times which i think is reasonable due to height
of an image on pdf page. But some funcs from liblcms2 and libm is called more
then 100 000 000 times.</pre>
</div>
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