On Thu, Aug 28, 2003 at 09:58:45AM +0200, Karl Ramberg wrote:
> 
> 
> Boris Gaertner wrote:
> > 
> > Joshua 'Schwa' Gargus <schwa at cc.gatech.edu> wrote:
> > 
> > > from preamble:
> > > I got a 30x speed improvement on this
> > > benchmark.
> > This is impressive!
> > 
> > (This time with tags as Joshua recommended.)
> > 
> > I did the test on a 80486 with Squeak 3.6 beta.
> > As Joshua pointed out, it would be nice to have a test on
> > a big-endian machine.
> Got these numbers from the [refStream nextPut: floats] timeToRun. 
> 9362  before filing in the change set.
> 3038  after.

Really?  And the float array was the same size?  You must have created
a new stream before writing the floats again, otherwise it would have
just appended a reference instead of writing the words, and would have
been much faster.  (scratches head)

The 9 seconds timing is pretty much in line with mine; it takes 1.2
seconds on my 2GHz P4.  Despite this, I stepped through part of an
invocation of the old code, and didn't see anything that would be
sped up greatly by being on a big-endian machine.  Therefore, my guess
is that it is the new code not giving as much of a speed-up, rather 
than the old code being faster.  But I can't imagine why this would
be.  Could you send results of a MessageTally?

Thanks for testing,
Joshua

> Mac os 8.6. PPC604.
> 
> Karl