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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Merge some optimisation works by Michal Srb?"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105102">105102</a>
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<th>Summary</th>
<td>Merge some optimisation works by Michal Srb?
</td>
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<th>Product</th>
<td>fontconfig
</td>
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<th>Version</th>
<td>2.12
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>library
</td>
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<th>Assignee</th>
<td>fontconfig-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>jeffbai@aosc.io
</td>
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<th>QA Contact</th>
<td>freedesktop@behdad.org
</td>
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<p>
<div>
<pre>First described in his paper ¹ to optimise various fontconfig algorithms, his
work ² has proven to be beneficial especially with LibreOffice. With current
2.12.6 it is practically impossible to scroll through the font listing when a
full set of Noto and Noto CJK fonts are installed, scrolling can cause the UI
to lock up for more than a second which practically destroys the user
experience.
With patches generated from his work - applied upon 2.12.6, this issue has gone
away. I was trying to test <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Performance concerns when larger CJK fonts are installed"
href="show_bug.cgi?id=105085">https://bugs.freedesktop.org/show_bug.cgi?id=105085</a>
with 2.12.92, however, these patches would no longer apply to the newest code,
as extensive API changes were made - it would be a shame to waste all these
optimisation works...
--------
¹
<a href="https://www.theseus.fi/bitstream/handle/10024/124694/Srb_Michal.pdf?sequence=1">https://www.theseus.fi/bitstream/handle/10024/124694/Srb_Michal.pdf?sequence=1</a>
² <a href="https://github.com/michalsrb/fontconfig">https://github.com/michalsrb/fontconfig</a></pre>
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