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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_UNCONFIRMED "
title="UNCONFIRMED - Performance: GTK3 VCL Slow Using NX Xserver"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=122884">122884</a>
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<th>Summary</th>
<td>Performance: GTK3 VCL Slow Using NX Xserver
</td>
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<th>Product</th>
<td>LibreOffice
</td>
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<th>Version</th>
<td>6.2.0.0.beta1+
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<th>Hardware</th>
<td>All
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<th>OS</th>
<td>All
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<th>Status</th>
<td>UNCONFIRMED
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
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<th>Component</th>
<td>graphics stack
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<th>Assignee</th>
<td>libreoffice-bugs@lists.freedesktop.org
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<th>Reporter</th>
<td>drichard@largo.com
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<p>
<div>
<pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=148527" name="attach_148527" title="Valgrind of a session running over NX technology.">attachment 148527</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=148527&action=edit" title="Valgrind of a session running over NX technology.">[details]</a></span>
Valgrind of a session running over NX technology.
In testing version 6.2, it was noticed there was a big performance issue at
cold start. 6.1 is opening in about 2 seconds, and 6.2 takes about 5-6 seconds
before it's fully rendered.
If the VCL is changed from default GTK3 back to GTK2, it immediately gets much
faster.
We have many other GTK3 apps running and are not seeing any performance issues
this badly.
LibreOffice is being run from large multi-user servers using the NX Xserver.
Your larger enterprise customers may have similar issues as they move this
version live. This technique is similar to using VNC to run an Xserver, and
it's possible the performance issue would be seen using this software as well.
In the past, when these types of things happen, the local video card of the
computer is compensating for the issue so it's not noticed.
When LO opens, the initial canvas appears and then slowly the icons and
pulldown menus appear when in GTK 3.
I did a valgrind and will attach. Not sure what else I can do to help.</pre>
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