Re: Fixed point cairo.. or no cairo?

[Jorn Baayen <jorn openedhand com>]

On Tue, 2006-08-08 at 11:03 +0100, Richard Purdie wrote:
> On Tue, 2006-08-08 at 10:24 +0100, Michael Meeks wrote:
> > 	Ah - interesting; so poking at:
> > 
> > http://www.o-hand.com/~jorn/pango-benchmarks/28/full-report.txt
> > 
> > 	I see a ton of vmlinux stuff apparently emulating the FPU - but,
> > unfortunately, it doesn't appear to tell me where those calls came from
> > (?) is there a pretty picture that shows that ? [ something like
> > 'sysprof' output would do that I guess ].
> 
> Floating point instructions generate CPU exceptions on ARM and I don't
> think oprofile or sysprof support back tracing through the CPU exception
> handler.
> 
> One solution would be to run the tests against a soft floating point
> image, then the floating point instructions would show up as any other
> library instead of generating exceptions. They have slightly less
> overhead in that case but it would show them in context in the stack
> back traces.

Done: http://www.o-hand.com/~jorn/pango-benchmarks/210-softfloat/


Thanks,

Jorn

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