XO battery/performance [Devel Digest, Vol 76, Issue 4]

[Yioryos Asprobounitis]

> >
> >  Most of the test had empty values but the
> informative ones (below) show
> >> that the XO-1.5 is better in basic integer
> operations and memory bandwidth
> >> while the XO-1.75 is better in float and double
> operations as well as in
> >> memory latency.
> >> I'm not sure how much this means for real life
> usage :-/
> >>
> >
> > I'm very suspect of this measurement.  The 1.5 has
> a hardware floating
> > point unit and the 1.75 is still using
> soft-float.  Its extremely unlikely
> > that the floating point performance on 1.75 is better
> than the 1.5.
> >
> 
> Hard FP status depends on if Yioryos is running 11.3.1 or
> 12.1.0.  Since he
> said "os10" by today's date I'm presuming 12.1.0.
> 
> The Fedora 17 builds should be hard fp (armv7hl).  The
> Fedora 14-based
> 11.3.1 builds are not (armv5tel / armv7l kernel).

Correct.
For the LMbench test the XO-1.75 was funning F17/21012o2 with the correct kernel per dsd's suggestion ( http://lists.laptop.org/pipermail/devel/2012-May/035212.html )
The XO-1.5 was running F14/11.3.0 os880