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Behaviour: forced reflows slow down browser rendering #14554

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TheBigfoot opened this issue Jun 21, 2019 · 8 comments
Closed

Behaviour: forced reflows slow down browser rendering #14554

TheBigfoot opened this issue Jun 21, 2019 · 8 comments
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not-in-changelog For issues or pull requests that should not be included in our release changelog on matomo.org.

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@TheBigfoot
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We are trying to display the behaviour tab in matomo, for having an overview over the last week of visits for a normal page (140k visitors in a week, 18 websites in total in this instance).
Our server response arrives after 4.3 seconds, then the browser is ~16seconds busy with scripting and rendering.

Is there a possibility to speed this up?

I attached some network tools screenshots containing network graph and details for the performance views with breaking down the js functions.
Selection_001
Selection_002
Selection_003
Selection_004

Our server configuration:
Matomo-Version: 3.9.1
MySQL-Version: 5.5.62
PHP-Version: 7.0.33
Database is hosted an a seperate server with SSD storage.
@tsteur
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tsteur commented Jun 21, 2019

What browser is that? How many rows are shown?

We might have an issue for this already somewhere but can't find right now. We checked this last week with 5 or 10K rows and it was fine BTW (Chromium).

@TheBigfoot
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It is Chrome 75.0.3770.80-1 for Linux
I was also searching for an issue but couldn't find any matching to rendering times.

@Findus23
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Do you by chance use any browser extensions that do expensive calculations?
7 seconds is by far too much.

@tsteur
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tsteur commented Jun 22, 2019

Also let us know how many rows are shown (results, entries, ... in the report)

@TheBigfoot
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I tried with another Chrome instance with no plugins installed.
Rendering took the same time, but this matomo page is return 5900 rows.

@mattab mattab closed this as completed Jan 21, 2020
@mattab
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mattab commented Jan 21, 2020

Thank you for the report 👍 To likely fix the issue, could you upgrade to the latest Matomo version?
see https://matomo.org/docs/update/
(this was improved a recent release)
if you still experience this issue afterwards, please re-open this and post a comment. Thanks!

@tomper00
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tomper00 commented Feb 4, 2020

I have a very similar issue right now running Matomo version: 3.13.1
The interesting thing here is that I am the only user that have the problem.
The problem seems to follow me between browsers.
I have logged out from Chrome and then tried to use Firefox and Safari and it is still slow.

@mattab
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mattab commented Feb 10, 2020

@tomper00 Could you create a new issue and post some more details like the above screenshots? as this issue is already closed.

@mattab mattab added the not-in-changelog For issues or pull requests that should not be included in our release changelog on matomo.org. label Sep 29, 2020
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@tsteur @tomper00 @mattab @TheBigfoot @Findus23