New FPS tool - how to interpret the data?

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Murali Mohan

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Sep 19, 2020, 10:47:11 AM9/19/20
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The older style FPS too was straightforward to read -  It gave the fps literally - 45 or 55 , with a graph.

After updating to latest - Version 85.0.4183.102  , I see a newer fps monitor in place.

Version 85.0.4183.102

80%   ---     811 ( 753m )   dropped of  5420

  • How do I interpret this data?    
  • Is 80%  80% of   60  -- 48 fps?
  • What is   m in 753m?

Any help much appreciated!





Yang Guo

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Sep 19, 2020, 11:06:07 AM9/19/20
to Google Chrome Developer Tools, Xida Chen

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guest271314

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Sep 19, 2020, 11:30:11 AM9/19/20
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Good question.

The 5420 appears to be monitoring "renderer", or activity (mouse movements; animations) on the page. 

Mathias Bynens

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Sep 21, 2020, 1:50:10 AM9/21/20
to google-chrome-...@googlegroups.com, Jecelyn Yeen
+Jecelyn, in case we want to document this / update our FPS meter documentation accordingly

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Murali Mohan

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Sep 23, 2020, 7:28:59 PM9/23/20
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Thanks Xida Chen.

Continuing with my questions.
In this given scenario:
   80%   ---     811 ( 753m )   dropped of  5420 

1. I'm assuming  80% is 80% of 60  -  48fps.   80% in the last 1 sec - Is that correct?  Or 80%  over the lifetime of the web-page?
2. According to the link  811 were dropped.  That 811 is over the lifetime of the web-page- correct?

The new meter provides a lot of information. But I personally feel it is less intuitive to interpret than the previous presentation.










On Sat, Sep 19, 2020 at 9:32 AM Xida Chen <xida...@chromium.org> wrote:
Hi,

Please refer to this thread for more detailed explanation of the new fps meter:


Thanks.
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