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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - macOS: CPU usage of the Database Wizard screen when active (on top)"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=104030#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - macOS: CPU usage of the Database Wizard screen when active (on top)"
href="https://bugs.documentfoundation.org/show_bug.cgi?id=104030">bug 104030</a>
from <span class="vcard"><a class="email" href="mailto:telesto@surfxs.nl" title="Telesto <telesto@surfxs.nl>"> <span class="fn">Telesto</span></a>
</span></b>
<pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=137012" name="attach_137012" title="Xcode instruments time profile screenshot">attachment 137012</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=137012&action=edit" title="Xcode instruments time profile screenshot">[details]</a></span>
Xcode instruments time profile screenshot
Could this be related to argb32_image c.q. CGSBlendRGBA8888toRGBA8888
conversion
in the background. It shows up in the time profile
There is some talk about argb32_image on the web:
*
<a href="http://robert.ocallahan.org/2010/05/cglayer-performance-trap-with-isflipped_03.html">http://robert.ocallahan.org/2010/05/cglayer-performance-trap-with-isflipped_03.html</a>
*
<a href="https://stackoverflow.com/questions/7560979/cgcontextdrawimage-is-extremely-slow-after-large-uiimage-drawn-into-it">https://stackoverflow.com/questions/7560979/cgcontextdrawimage-is-extremely-slow-after-large-uiimage-drawn-into-it</a>
And I'm seeing 'isflipped' quite a lot here:
<a href="https://opengrok.libreoffice.org/xref/core/vcl/quartz/salgdicommon.cxx">https://opengrok.libreoffice.org/xref/core/vcl/quartz/salgdicommon.cxx</a></pre>
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