870 on XO1

[Daniel Drake]

On 26 June 2011 00:03, Kevin Gordon <kgordon420 at gmail.com> wrote:
> Folks, on XO 1 with new 870 build :
>
> 1) At boot, once the animation has completed its little circle, the screen
> goes black for about 17 seconds before the favourite wheel comes up. Does
> this on multiple XO's.  Does not happen on os23.

Thanks, filed as http://dev.laptop.org/ticket/11019

> 2) In general, boot takes about twice as long on 870 than on os23, again on
> multiple XO's compared.
>
> 3) Activities take longer to launch, flashing icon stays almost twice as
> long on the screen before the screen comes up than it did on os23 for some.

These are due to the filesystem switch, or more specifically the
switch in compression methods used. The result is significantly
reduced disk utilisation (higher compression) but more CPU-intensive
work needed to read and write files. Unfortunate, but true. A slowdown
is expected, as a tradeoff for not shipping a nearly-full disk.

What we've effectively done is reverted to what we had for 10.1.3. So,
a more interesting comparison would be observing build 860 at the side
of build 870. Bear in mind that some activities take a lot longer to
launch the first time after flashing, e.g. Browse and Record, so care
is needed to ensure the comparison is fair.

Thanks,
Daniel