[Laszlo-dev] I am getting 60% cpu usage in swf9/firefox/osx for the test case in LPP-8072 in 4.2

[Henry Minsky]

Well, actually the CPU usage behavior I see seems to be as follows
+ If I select the test app, and leave the mouse on top of a soccer ball
image, the CPU stays pegged
at 60% forever.

+ If I command-tab to another OSX  process, the CPU usage goes down to 15%
or so

+ If I then click back anywhere in the browser window to give it focus,
the CPU still stays at 15%, but if I click the mouse
on the app again, it's like it activates the Flash player and CPU goes up to
60% again.

+ If I leave the mouse over the blank <window> or the debugger window,
rather than the tiled image array,
CPU usage is not as high, more like
20% or so.

As an experiment I modified the swf9 kernel to force mouseEnabled=false on
every sprite, but don't see any measureable difference in CPU usage in that
case :-(





On Mon, Apr 27, 2009 at 7:07 PM, Henry Minsky <hminsky at laszlosystems.com>wrote:

> Never mind, I think I was not waiting long enough to let the thing settle
> down.
>
>
> On Mon, Apr 27, 2009 at 7:01 PM, Henry Minsky <hminsky at laszlosystems.com>wrote:
>
>>
>> So even with a clean 4.2 branch, if I run the test case in LPP-8072, with
>> the wrapping layout with 1100 images and text views, I always get 60% cpu
>> usage. It never drops below that when the app has focus. I have the thing in
>> non-debug mode, with no
>> dev-console. I even modified the swf9 kernel so that mouseEnabled was
>> always false on every sprite, but it doesn't seem to make
>> any difference, the CPU usage stays pegged at 60%. Strangely, if I am
>> running with the debugger, and I move the mouse over
>> the debugger window, CPU usage goes down to 22%.If I select the debugger's
>> input field for focus, the CPU goes down to 20%.
>>
>> But leaving the mouse over the tiled graphics shoots up to 60%.
>>
>> I thought your testing showed a lot lower CPU usage..
>>
>>
>>
>> --
>> Henry Minsky
>> Software Architect
>> hminsky at laszlosystems.com
>>
>>
>>
>
>
> --
> Henry Minsky
> Software Architect
> hminsky at laszlosystems.com
>
>
>


-- 
Henry Minsky
Software Architect
hminsky at laszlosystems.com
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