Sure, I would certainly do a similar benchmark test on an XO-1 also . I am presently waiting for the developers' key of my XO-1 to<div>flash it into the latest build of dextrose, then I will run the benchmark test and will post the results asap. <div class="gmail_quote">On Tue, Oct 26, 2010 at 6:59 PM, Martin Dengler <<a href="mailto:martin@martindengler.com">martin@martindengler.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div class="im">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 <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 > <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) .Also we > can see the test results of James'(quozl) at > <a href="http://bugs.sugarlabs.org/ticket/245" target="_blank">http://bugs.sugarlabs.org/ticket/245</a> which suggests that XO-1.5 is atleast > twice as fast as XO-1. </div>Those conclusions are oversimplified - in general they might be useful but you are talking about a very specific, very large and subtle set of operations with a very specific set of interacting hardware and software components, the software ones of which change a lot from release to release. Much more compelling for a problem that has been with us for a while, has been a moving target in software terms, and many people have looked at, would be just to test your change on an XO-1 and report back. If you don't have one - and even if you do - others will be interested in testing your changes on an XO-1, too. Please can you provide an easy way for people with an XO-1 and a well-supported release to objectively gather the speedup of your patch? Or at least some numbers of your own? Martin </blockquote></div> </div>