Good Folk:<br><br>I think we can close the book on this. Today, all of the USB ports on one just stopped working altogether for anything, not even a little mouse when plugging in gives any result. The second one is now reliably showing in dmesg that it is running full-speed not high speed. So, it's h/w. I have taken all the nice hints, or the links to the nice hints, and put them into my compendium. They still run beautifully as XO',s, and fine with SD cards - they're just lacking on the USB side. I can live with this for two machines:-) Thanks everyone for the help.<br>
<br>Cheers<br><br>KG<br>
<br><br><br><div class="gmail_quote">On Mon, Feb 20, 2012 at 11:36 PM, James Cameron <span dir="ltr"><<a href="mailto:quozl@laptop.org" target="_blank">quozl@laptop.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>On Tue, Feb 21, 2012 at 12:39:43PM +1100, James Cameron wrote:<br>
> On an XO-1.75 using null-fsdisk, the fs-update reduced from 5:05 to<br>
> 4:36, which shows that most of the time cost is the decompression. The<br>
> same file read in without decompression [2] cost 1:26.<br>
<br>
</div>That result was using a different method to what fs-update uses, so I<br>
redid the test with the same method [1]. The result was 27 seconds.<br>
<br>
References:<br>
1. <a href="http://wiki.laptop.org/go/Forth_Lesson_23#read_a_.zd_file" target="_blank">http://wiki.laptop.org/go/Forth_Lesson_23#read_a_.zd_file</a><br>
<div><div><br>
--<br>
James Cameron<br>
<a href="http://quozl.linux.org.au/" target="_blank">http://quozl.linux.org.au/</a><br>
</div></div></blockquote></div><br>