[Sugar-devel] [Dextrose] [PATCH v5 sugar] Pulsing icon delayed by 5 seconds or so SL#2080

[Anurag Chowdhury]

I carried out the same benchmark test, which I earlier conducted on an
XO-1.5 , on a X0-1 . And I have attached the log files obtained in both the
cases . And found my assertion of XO-1.5 being a faster system in parameters
of the pulsing icon rendering also i found out the delay of the first frame
to be nearly 1.5 secs on XO-1 as compared to 0.8 secs on XO-1.5. also the
consecutive times taken for the rendering of the frames on the XO-1 were
much larger as compared to that on a XO-1.5.

Hence, the above taken log results verify that XO-1.5 has better system
performance in case of graphic rendering than XO-1. And shipping the update
function call for the first frame reduces the delay by nearly 1.5secs on an
XO-1 and by 0.8 secs on XO-1.5.

Regards,
--Anurag
- Show quoted text -

On Wed, Oct 27, 2010 at 8:42 PM, Gary Martin <garycmartin at googlemail.com>wrote:

> Hi Steven,
>
> On 27 Oct 2010, at 15:55, Steven Parrish wrote:
>
> > On Tue, Oct 26, 2010 at 7:50 PM, James Cameron <quozl at laptop.org> wrote:
> >> On Tue, Oct 26, 2010 at 05:41:58PM +0530, Anurag Chowdhury wrote:
> >>> The conclusion of XO-1.5 being nearly 2.5 times faster than the XO-1
> >>> could be verified by comparing their hardware specifications. at
> >>> http://en.wikipedia.org/wiki/OLPC_XO-1  (For XO-1) and
> >>> http://wiki.laptop.org/go/Hardware_specification_1.5 (For XO-1.5)
> >>
> >> These specifications do not describe CPU or graphics performance, and so
> >> your conclusion "2.5 times faster" is not supported by these
> >> specifications.
> >>
> >>> Also we can see the test results of James'(quozl) at
> >>> http://bugs.sugarlabs.org/ticket/245 which suggests that XO-1.5 is
> >>> atleast twice as fast as XO-1.
> >>
> >> That test compared two entirely different methods of rendering the
> >> languages control panel section; one method used by Sugar 0.82.1 and the
> >> other method used Sugar 0.84.11.  So your conclusion "2.5 times faster"
> >> is not supported by this test either.
> >>
> >> http://dev.laptop.org/ticket/9325 is the best test result that I can
> >> remember that compares CPU and graphics performance, and the latest
> >> results there show XO-1 and XO-1.5 at about equal, because the bit plane
> >> depth has changed from 16 on XO-1 to 24 on XO-1.5 at the same time as
> >> the graphics subsystem became faster.  The test is less relevant to
> >> Sugar though, since it is (a) full screen fill, and (b) using SDL and
> >> pygame rather than GTK+.
> >>
> >> I'd like to test your change on Sugar 0.84 (not HEAD) on XO-1 and
> >> XO-1.5 once I can understand how to measure the performance.  It is more
> >> important for me that power is conserved.
> >>
> >> --
> >> James Cameron
> >> http://quozl.linux.org.au/
> >> _______________________________________________
> >> Sugar-devel mailing list
> >> Sugar-devel at lists.sugarlabs.org
> >> http://lists.sugarlabs.org/listinfo/sugar-devel
> >>
> >
> > Just an FYI I am releasing a new Dextrose today.  os4dx2 which will
> > soon be available on wiki.sugarlabs.org/go/Dextrose   One feature is
> > an updated cairo which seems to have decreased the render times.  You
> > might want to check it out.  I have done some local testing and it
> > seems much improved so might just render this a mute point.
>
> Oooh, some good news at last! Thanks for the heads up.
>
> Regards,
> --Gary
>
> > Steven
> > _______________________________________________
> > Sugar-devel mailing list
> > Sugar-devel at lists.sugarlabs.org
> > http://lists.sugarlabs.org/listinfo/sugar-devel
>
>
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