[MLton-user] timing anomoly
seanmcl at gmail.com
Mon Dec 3 17:27:35 PST 2007
Using -inline 1000 worked for the test example, but in the context of a large
program it is now taking a very long time to compile. I killed the
30 minutes. Is there a way to get the fast behavior (%10 faster than GCC -O2)
without such compilation time increases? I know the comparison is not
really relevant, but
GCC manages to generate the fast code in a few seconds, even in a program
of the same order of magnitude of my SML program.
On Dec 3, 2007 6:48 PM, Sean McLaughlin <seanmcl at gmail.com> wrote:
> It worked with -inline 1000. Will this negatively impact performance
> if I use this option on the rest of my code? Also, is there documentaton for
> the -expert options? I don't want to waste your time if there is a document
> somewhere describing these options.
> On Dec 3, 2007 5:05 PM, Florian Weimer <fw at deneb.enyo.de> wrote:
> > * Sean McLaughlin:
> > > I found some very strange behavior of mlton while running some
> > > floating point experiments. The attached file evaluates some
> > > polynomials and returns them. If you multiply a value by a single
> > > argument, it multiplies by 10 the performance time of the entire
> > > function.
> > It seems as if the inline limit exceeded after the change. Try
> > something like "-inline 500" and see if it improves performance.
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