md5sum makes unaligned word accesses...

Rob Landley rob at landley.net
Mon May 15 00:00:49 UTC 2006


On Friday 12 May 2006 6:21 pm, Mike Frysinger wrote:
> On Friday 12 May 2006 16:57, Rob Landley wrote:
> > On Friday 12 May 2006 12:43 am, Mike Frysinger wrote:
> > > On Thursday 11 May 2006 12:22, Rob Landley wrote:
> > > > But it doesn't on any other platform.
> > >
> > > alignment issues arent arm-specific
> >
> > Yeah, but do we support another platform yet that cares?
> >
> > I'm all for fixing it.  I just don't want to penalize systems that don't
> > need the fix.
>
> of course we do
>
> more systems care about alignment issues than not
>
> it's just that most systems will automatically clean up alignment bugs at
> the kernel level so no one usually notices
>
> so, we're already penalizing systems, we just dont notice ;)

I'm talking about binary size, not performance.  And the big bottleneck is the 
cache line fetches, not the internal processing; try actually benching stuff 
and the alignment is likely to be noise at best.

Rob
-- 
Never bet against the cheap plastic solution.



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