Bad scroll performance since A4 on iPhone 3G #1407

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telbert opened this Issue Apr 8, 2011 · 7 comments

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@telbert
telbert commented Apr 8, 2011

Hi,

I just regonized, that the scroll performance is very bad since A4. Just check the demo page menu on a iPhone 3G on
http://jquerymobile.com/demos/1.0a4.1/
and
http://jquerymobile.com/demos/1.0a3/

The scrolling via vertical swipe gesture is very bumpy since A4.

Regards
Timo

@jblas
Contributor
jblas commented Apr 8, 2011

Landed a fix for this:

0ef9545

@jblas jblas closed this Apr 8, 2011
@telbert telbert reopened this Apr 11, 2011
@telbert
telbert commented Apr 11, 2011

Hi jblas,

thanks for your fast investigation.

Unfortunately, the scroll performance is still significantly worse on
http://jquerymobile.com/demos/test
than on
http://jquerymobile.com/demos/1.0a3/

Regards
telbert

@racsol
racsol commented Apr 12, 2011

Hi,

I'm having the same problem. In my ipod touch 2º generation the scroll performance since alpha 4 is significantly worse, even with the fix applied. On iphone 4, this issue is not noticeable.

Regards
Carlos Silva

@jblas jblas was assigned Apr 12, 2011
@rs
Contributor
rs commented Apr 18, 2011

Same here, even on iPhone 4 I notice is a slight slowness. I can "fix" the issue by removing the vmouse code altogether.

@jblas
Contributor
jblas commented Apr 18, 2011

Landed more optimizations that should make scrolling much more responsive.

c31ee33

Please let us know if you are still having problems!

@jblas jblas closed this Apr 18, 2011
@rs
Contributor
rs commented Apr 19, 2011

I confirm this optimization fixed the issue on iPhone 3G. GG

@telbert
telbert commented Apr 20, 2011

jep, thanks jblas!

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