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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">Please create a ticket, Florian. Would it be possible to profile the application when scrolling?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">Thank you<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16"">-andy<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Iosevka Fixed SS16""><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">openjfx-dev <openjfx-dev-retn@openjdk.org> on behalf of Florian Kirmaier <florian.kirmaier@gmail.com><br>
<b>Date: </b>Friday, October 27, 2023 at 04:20<br>
<b>To: </b>openjfx-dev@openjdk.java.net <openjfx-dev@openjdk.java.net><br>
<b>Subject: </b>Performance Regression in 21 - CSS<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">Hi everyone,<br>
<br>
I've noticed that some parts of one of my applications is significantly slower with 21. It's fast with 20.<br>
The application heavily uses (and reuses) TextFlow with a Cell pattern.<br>
When I scroll, it is smooth with 20, but has big freezes with 21.<br>
<br>
I've tried all the commits that happened in between, and pin-pointed it down to the following:<br>
ticket: <a href="https://bugs.openjdk.org/browse/JDK-8304959" target="_blank">https://bugs.openjdk.org/browse/JDK-8304959</a><br>
PR: <a href="https://github.com/openjdk/jfx/pull/1070" target="_blank">https://github.com/openjdk/jfx/pull/1070</a><br>
commit: <a href="https://github.com/openjdk/jfx21u/commit/3fa02ee96a6dadbc20cacbf399a2d65df708eee1" target="_blank">https://github.com/openjdk/jfx21u/commit/3fa02ee96a6dadbc20cacbf399a2d65df708eee1</a><br>
<br>
<br>
According to the description and the discussion in the PR - this wasn't supposed to change any performance.<br>
Is this regression known?<br>
Otherwise, I should create a ticket for it.<br>
<br>
Greetings Florian<o:p></o:p></span></p>
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