[MLton-devel] cvs commit: simple overflow detection elimination

[Stephen Weeks]

> What kind of machine do you run benchmarks on?  I ask because
> I didn't see the slowdown on boyer and peek with -detect-overflow false:
> 
> Steve's:
> > run time ratio
> > benchmark         MLton3
> > boyer               1.24
> > peek                1.32
> 
> Matthew's:
> > run time ratio
> > benchmark         MLton2
> > boyer               1.04
> > peek                0.63

I reran on my dual 1.6 GHz Athlon (my usual benchmarking machine) and
got similar results.

MLton0 -- mlton -detect-overflow true
MLton1 -- mlton -detect-overflow false

run time ratio
benchmark MLton1
boyer       1.32
peek        1.32

And on my 1.6 GHz Pentium 4 I get yet different results.

run time ratio
benchmark MLton1
boyer       1.36
peek        0.58


Ahh, the vagaries of benchmarking.


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