[Sugar-devel] Web activity example that uses html5 canvas

[Manuel Quiñones]

Oh, we should release it then.  Can you, Gary?

2013/5/10 James Cameron <quozl at laptop.org>:
> On Wed, May 01, 2013 at 10:55:51AM +1000, James Cameron wrote:
>> Summary: this Clock activity consumes significantly less CPU on XO-4
>> and XO-1 when implemented in Javascript.
>
> Myth busted.  See new results in context below.
>
>> On Tue, Apr 30, 2013 at 08:42:18PM -0300, Manuel Qui?ones wrote:
>> > 2013/4/30 James Cameron <quozl at laptop.org>:
>> > > On Tue, Apr 30, 2013 at 08:58:50AM -0300, Manuel Qui?ones wrote:
>> > >> Should work on other browsers now:
>> > >>
>> > >> http://manuq.github.io/clockjs/
>> > >
>> > > Agreed, works well, reasonably low CPU utilisation.  Thanks.
>> >
>> > Excellent.  Thanks for checking the CPU consumption.
>>
>> Here's a more detailed check.  Method is to run only the activity
>> under test, and use the serial port to run the Linux top command
>> configured for a 30 second sample time.
>>
>> --
>>
>> On XO-4 using 13.1.0:
>>
>> - using Javascript, the Browse-149 process consumes 7.5% CPU, and the
>>   X process 3.2% CPU.  Total of 10.7% CPU.
>>
>> - not using Javascript, the Clock-12 process consumes 2.7% CPU, and
>>   the X process 13.2% CPU.  Total of 15.9% CPU.
>
> Clock-12.5 process consumes 0.6%, and the X process 2.0%, a total of
> 2.6%.
>
>> --
>>
>> On XO-1 using 13.2.0, build 32004o0,
>>
>> - using Javascript, the Browse-149.2 process consumes 9.8%, the X
>>   process 7.4%, a total of 17.2%,
>>
>> - not using Javascript, the Clock-12 process consumes 10.4% and X
>>   process consumes 18.4%, a total of 30.8%.
>
> Clock-12.5 process consumes 1.5%, and the X process 3.6%, a total of
> 5.1%.
>
>>
>> --
>>
>> On XO-1 using 11.3.0, build 883,
>>
>> - using Javascript, the Browse 129.1 does not render the script,
>>
>> - not using Javascript, the Clock-6 consumes 7.0%, and X consumed
>>   9.0%, a total of 16%.
>
> Test not repeated.
>
> --
> James Cameron
> http://quozl.linux.org.au/



-- 
.. manuq ..