<div><span class="Apple-style-span" style="font-family: arial, sans-serif; font-size: 13px; border-collapse: collapse; ">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. <div>
<br></div><div>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. </div>
</span></div><div><br></div><div>Regards,</div><div>--Anurag</div><div>- Show quoted text -</div><br><div class="gmail_quote">On Wed, Oct 27, 2010 at 8:42 PM, Gary Martin <span dir="ltr"><<a href="mailto:garycmartin@googlemail.com">garycmartin@googlemail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi Steven,<br>
<div><div></div><div class="h5"><br>
On 27 Oct 2010, at 15:55, Steven Parrish wrote:<br>
<br>
> On Tue, Oct 26, 2010 at 7:50 PM, James Cameron <<a href="mailto:quozl@laptop.org">quozl@laptop.org</a>> wrote:<br>
>> On Tue, Oct 26, 2010 at 05:41:58PM +0530, Anurag Chowdhury wrote:<br>
>>> The conclusion of XO-1.5 being nearly 2.5 times faster than the XO-1<br>
>>> could be verified by comparing their hardware specifications. at<br>
>>> <a href="http://en.wikipedia.org/wiki/OLPC_XO-1" target="_blank">http://en.wikipedia.org/wiki/OLPC_XO-1</a> (For XO-1) and<br>
>>> <a href="http://wiki.laptop.org/go/Hardware_specification_1.5" target="_blank">http://wiki.laptop.org/go/Hardware_specification_1.5</a> (For XO-1.5)<br>
>><br>
>> These specifications do not describe CPU or graphics performance, and so<br>
>> your conclusion "2.5 times faster" is not supported by these<br>
>> specifications.<br>
>><br>
>>> Also we can see the test results of James'(quozl) at<br>
>>> <a href="http://bugs.sugarlabs.org/ticket/245" target="_blank">http://bugs.sugarlabs.org/ticket/245</a> which suggests that XO-1.5 is<br>
>>> atleast twice as fast as XO-1.<br>
>><br>
>> That test compared two entirely different methods of rendering the<br>
>> languages control panel section; one method used by Sugar 0.82.1 and the<br>
>> other method used Sugar 0.84.11. So your conclusion "2.5 times faster"<br>
>> is not supported by this test either.<br>
>><br>
>> <a href="http://dev.laptop.org/ticket/9325" target="_blank">http://dev.laptop.org/ticket/9325</a> is the best test result that I can<br>
>> remember that compares CPU and graphics performance, and the latest<br>
>> results there show XO-1 and XO-1.5 at about equal, because the bit plane<br>
>> depth has changed from 16 on XO-1 to 24 on XO-1.5 at the same time as<br>
>> the graphics subsystem became faster. The test is less relevant to<br>
>> Sugar though, since it is (a) full screen fill, and (b) using SDL and<br>
>> pygame rather than GTK+.<br>
>><br>
>> I'd like to test your change on Sugar 0.84 (not HEAD) on XO-1 and<br>
>> XO-1.5 once I can understand how to measure the performance. It is more<br>
>> important for me that power is conserved.<br>
>><br>
>> --<br>
>> James Cameron<br>
>> <a href="http://quozl.linux.org.au/" target="_blank">http://quozl.linux.org.au/</a><br>
>> _______________________________________________<br>
>> Sugar-devel mailing list<br>
>> <a href="mailto:Sugar-devel@lists.sugarlabs.org">Sugar-devel@lists.sugarlabs.org</a><br>
>> <a href="http://lists.sugarlabs.org/listinfo/sugar-devel" target="_blank">http://lists.sugarlabs.org/listinfo/sugar-devel</a><br>
>><br>
><br>
> Just an FYI I am releasing a new Dextrose today. os4dx2 which will<br>
> soon be available on <a href="http://wiki.sugarlabs.org/go/Dextrose" target="_blank">wiki.sugarlabs.org/go/Dextrose</a> One feature is<br>
> an updated cairo which seems to have decreased the render times. You<br>
> might want to check it out. I have done some local testing and it<br>
> seems much improved so might just render this a mute point.<br>
<br>
</div></div>Oooh, some good news at last! Thanks for the heads up.<br>
<br>
Regards,<br>
--Gary<br>
<br>
> Steven<br>
<div><div></div><div class="h5">> _______________________________________________<br>
> Sugar-devel mailing list<br>
> <a href="mailto:Sugar-devel@lists.sugarlabs.org">Sugar-devel@lists.sugarlabs.org</a><br>
> <a href="http://lists.sugarlabs.org/listinfo/sugar-devel" target="_blank">http://lists.sugarlabs.org/listinfo/sugar-devel</a><br>
<br>
</div></div></blockquote></div><br>