1172561 - Mini Dell: Browser becomes laggy when the user scrolls the page up/down

Status: RESOLVED INVALID

(Core :: Graphics, defect)

Description

[Todd Brais]

Attachment: fx39_minidell_defaultdriver_dxdiag.txt

Actual Result:
When the user is running the FF 39 graphics test; the NY times, Pinterest, and YouTube sites become laggy (3-5 second delay) when the user selects to scroll the window up/down

Expected Result:
No lag is seen when scrolling browser up/down

Steps to Reproduce:
1. Using the Mini Dell system (default drivers); navigate to the nytimes.com, pinterest.com and selected YouTube videos.
2. Attempt to scroll up/down for 15 seconds or more; observe that Firefox becomes laggy

Comment 1

[Todd Brais]

Attachment: fx39_MiniDell_defaultdriver_support.txt

Comment 2

[Todd Brais]

Attachment: fx39_Setesh_defaultdriver_dxdiag.txt

Comment 3

[Todd Brais]

Attachment: ff39_Setesh_defaultdriver_support.txt

Comment 4

[Kartikaya Gupta (email:[e-mail])]

Getting a profile would be the first step here.

Comment 5

[Mason Chang [Inactive] [:mchang]]

Can you please get a profile when the lag occurs during scrolling? Instructions on how to profile are here - https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Profiling_with_the_Built-in_Profiler

Thanks!

Comment 6

[Milan Sreckovic [:milan] (needinfo for best results)]

We can't really get the profile, but maybe get this answer - the bug says "with the default driver" - does that mean we're OK with the latest driver?

Comment 7

[u279076]

(In reply to Milan Sreckovic [:milan] from comment #6)
> We can't really get the profile, but maybe get this answer - the bug says
> "with the default driver" - does that mean we're OK with the latest driver?

Todd should be able to answer this question.

Comment 8

[Todd Brais]

Hi Anthony; the default driver is the current/onboard drive. There is no driver update that is higher(In reply to Anthony Hughes, QA Mentor (:ashughes) from comment #7)
> (In reply to Milan Sreckovic [:milan] from comment #6)
> > We can't really get the profile, but maybe get this answer - the bug says
> > "with the default driver" - does that mean we're OK with the latest driver?
> 
> Todd should be able to answer this question.

Comment 9

[Milan Sreckovic [:milan] (needinfo for best results)]

Not sure we can do much about this one - it's an Atom, 1GB system, 8MB integrated graphics.  Anthony, we may want to remove this system from our test list?
Still, about:support would have been useful.  dxdiag is cool, but about:support also tells us how we're responding to the system in question.

Comment 10

[u279076]

(In reply to Milan Sreckovic [:milan] from comment #9)
> Still, about:support would have been useful.  dxdiag is cool, but
> about:support also tells us how we're responding to the system in question.

About:support pages are attached to this bug report along with dxdiag.
..._dxdiag.txt are the dxdiag reports.
..._support.text are the about:support reports.

Comment 11

[Milan Sreckovic [:milan] (needinfo for best results)]

So it is, my bad.  So, yes, we're completely in software rendering, and I imagine with only 1GB or memory, we are probably swapping, or spending time garbage collecting, or something like that.

Comment 12

[Trammel May]

This configuration still experiences a significant decrease in performance when performing the steps to recreate. However, it does not appear to be anything unusual given the hardware. I would not consider this a bug as it does not seem to be an issue with the browser.

Comment 13

[Trammel May]

Note: Browser 43 was used to try to replicate.

Comment 14

[u279076]

Closing as INVALID given comment 12. Please reopen if you think this is something we should fix.