Re: [Chicken-users] Is there interest in a new egg (fast-io)?

[Jeronimo Pellegrini]

On Tue, Apr 06, 2010 at 11:24:20AM -0300, Jeronimo Pellegrini wrote:
> Anyway, I've uploaded it here if you'd like to give it a try:
> 
> http://aleph0.info/fast-io.tar.gz

I forgot -- whatch out for the file size and time to be spent in
benchmarks! You may want to change the value of +max+ in
benchmarks/run.scm to a smaller value and increase it gradually.

BTW, I've benchmarked complex reading ad writing too. I suppose 
the difference is huge for reading complexes because the read
procedure doesn't know that it's a complex number.

One caveat: fast-io reads and writes exactly as printf/scanf do,
so the external representation may not be the one used by your
other Scheme programs!

J.


                scheme    fast-io   speedup
-------------------------------------------
write fixnum    14.602      5.303    2.7535
read  fixnum    58.208     11.706    4.9725

write flonum    37.003     21.647    1.7094
read  flonum   100.367     15.626    6.4231

write complex   89.361     56.020    1.5952
read  complex 3076.952     59.476    51.734
-------------------------------------------