715095 - http://bartaz.github.com/impress.js/ is less smooth on FF

Status: RESOLVED DUPLICATE of bug 715037

(Core :: Graphics, defect)

Description

[Anthony Ricaud (:rik)]

+++ This bug was initially created as a clone of Bug #714573 +++

Firefox is not performing as well as Safari and Chrome on Mac.

Comment 2

[Benoit Jacob [:bjacob] (mostly away)]

Boris, this bug was filed separately specifically because it doesn't seem clear that it's the same problem as bug 714573 : Mac and Linux use quite different rendering paths. (Mac now uses Skia, Linux is still on Cairo; and there could be a back-end issue at play too). Reopening unless there's a specific reason to dupe.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

(In reply to Benoit Jacob [:bjacob] from comment #2)
> Boris, this bug was filed separately specifically because it doesn't seem
> clear that it's the same problem as bug 714573 : Mac and Linux use quite
> different rendering paths. (Mac now uses Skia, Linux is still on Cairo; and
> there could be a back-end issue at play too). Reopening unless there's a
> specific reason to dupe.

Afaict tell the performance problems with impress.js are caused by invalidating too much and thus a layout problem and not a graphics one.

Comment 4

[Stuart Parmenter]

I see this on windows as well

Comment 5

[IU]

On Windows, still not as smooth as Chrome -- even with a build having bug 524925 included.

Comment 6

[Boris Zbarsky [:bzbarsky]]

> Boris, this bug was filed separately specifically because it doesn't seem clear that
> it's the same problem as bug 714573

Yes, but I didn't dup it to bug 714573.  I dupped it to a bug that's specifically about performance on this page on Mac.

But then comment 4 came across and confused things anyway, of course.  So now we have three bugs (this one, bug 714573 and bug 715037) with no clear interrelationship between them.

Comment 7

[(mostly gone) XtC4UaLL [:xtc4uall]]

If this is the Windows Version of the impress.ja Perf Issue then

I can confirm the Issue with Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0 ID:20120420145725

But it's WFM with Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20130320 Firefox/22.0 ID:20130320031103 CSet: 8156df33b757 and on par with Chrome 27.

Comment 8

[Mayank Bansal]

On a core i3-370M 2.4GHZ and a AMD HD5470M GPU , Chrome 26 feels smoother than  the Nightly.
OS: win7 x64.

Comment 9

[Gregory Pappas [:gregp]]

Well, this demo is certainly smooth now. Unfortunately, it has some strange artifacts; I'll file a bug for those.