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<body><span class="vcard"><a class="email" href="mailto:ilmari.lauhakangas@libreoffice.org" title="Buovjaga <ilmari.lauhakangas@libreoffice.org>"> <span class="fn">Buovjaga</span></a>
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<a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - TrueType fonts with Chinese slow down LibreOffice"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=131740">bug 131740</a>
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<th>What</th>
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<th>Added</th>
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<td style="text-align:right;">CC</td>
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<td>ilmari.lauhakangas@libreoffice.org
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<b><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - TrueType fonts with Chinese slow down LibreOffice"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=131740#c4">Comment # 4</a>
on <a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - TrueType fonts with Chinese slow down LibreOffice"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=131740">bug 131740</a>
from <span class="vcard"><a class="email" href="mailto:ilmari.lauhakangas@libreoffice.org" title="Buovjaga <ilmari.lauhakangas@libreoffice.org>"> <span class="fn">Buovjaga</span></a>
</span></b>
<pre>You could take a performance profile of the slow down.
Install debug packages for LibreOffice:
<a href="https://wiki.ubuntu.com/Debug%20Symbol%20Packages">https://wiki.ubuntu.com/Debug%20Symbol%20Packages</a>
Install perf and FlameGraph and do the trace:
<a href="https://wiki.documentfoundation.org/Development/How_to_debug#Performance_debugging_.28perf.29">https://wiki.documentfoundation.org/Development/How_to_debug#Performance_debugging_.28perf.29</a>
So you run LibreOffice, then in a terminal you say
perf record -F 200 --call-graph dwarf,62000 --pid=`pidof soffice.bin`
Then you open the slow file.
You exit perf by Ctrl-C in the terminal.
Then you can create the SVG flamegraph.</pre>
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