Bug 33618 – Firefox is using > 80% CPU when the grid is shown

Bug 33618 - Firefox is using > 80% CPU when the grid is shown


Summary:	Firefox is using > 80% CPU when the grid is shown

Status:	CLOSED DUPLICATE of bug 32027

Product:	UCS
Classification:	Unclassified
Component:	UMC (Generic)
Version:	UCS 3.2
Hardware:	Other Linux

Importance:	P5 minor (vote)
Target Milestone:	UCS 3.2-x
Assigned To:	UMC maintainers
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Blocks:
	Show dependency tree / graph

Reported:	2013-11-29 12:09 CET by Dirk Wiesenthal
Modified:	2023-03-25 06:47 CET (History)
CC List:	3 users (show)

See Also:	33180
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Description Dirk Wiesenthal

2013-11-29 12:09:00 CET

In some grids (UVMM, UDM, but not UCR) the Firefox process uses *a lot* of CPU time.

Not seen in Chromium. Only seen when the grid is populated. Only seen when the tab is actually visible (i.e. when using another Firefox tab, it goes down. When editing a user object (DetailPage is shown), it goes down).

Comment 1 Alexander Kläser

2013-12-05 22:54:06 CET

Hm, maybe the easiest option would be to use dgrid as it is more lightweight and faster.

Comment 2 Dirk Wiesenthal

2014-05-22 12:52:40 CEST

I think I found it: Happens only when grid buttons are shown. If the button list is hidden (because every action is context action and no row is selected) everything is fine.

The problem seems to be that in case the grid buttons are shown, each button (even something like module button "Cancel" below the grid!) is redrawn several times per second.

Comment 3 Alexander Kläser

2014-05-22 13:48:05 CEST

(In reply to Dirk Wiesenthal from comment #2)
> I think I found it: ...

cool :) !

Comment 4 Florian Best

2016-10-10 14:13:01 CEST

Will be obsolete by Bug #32027 and maybe not anymore present with the lastest firefox version.

*** This bug has been marked as a duplicate of bug 32027 ***

Comment 5 Florian Best

2017-02-21 15:41:58 CET

OK: duplicate.
If there are any performance issues open a new bug.