[racket-dev] [plt] Push #25860: master branch updated

Ah ya, I guess I meant the "common" sub-dir.

In any case, I think that Neil won't be comparing Racket vs something, but
just measuring the performance of a piece of Racket

Jay


On Thu, Dec 6, 2012 at 4:06 PM, Sam Tobin-Hochstadt <samth at ccs.neu.edu>wrote:

> On Thu, Dec 6, 2012 at 2:36 PM, Jay McCarthy <jay.mccarthy at gmail.com>
> wrote:
> > On Thu, Dec 6, 2012 at 3:32 PM, Neil Toronto <neil.toronto at gmail.com>
> wrote:
> >>
> >> On 12/06/2012 02:08 PM, Sam Tobin-Hochstadt wrote:
> >>>
> >>> On Thu, Dec 6, 2012 at 12:44 PM,  <ntoronto at racket-lang.org> wrote:
> >>>>
> >>>>
> >>>> | Reimplemented really simple FFI functions (e.g. mpfr-prec, mpfr-exp)
> >>>> to
> >>>> | avoid calling overhead
> >>>
> >>>
> >>> If you have meaningful benchmarks where this makes a difference, that
> >>> may be useful to Matthew, since he recently was working on improving
> >>> the FFI's code generation.
> >>
> >>
> >> I've got some benchmarks showing via timing loops that pulling a _long
> >> directly out of an _mpfr takes just over half the time it takes to call
> >> libmpfr to do it. It's enough to make me want to rewrite simple things
> like
> >> `bfnegative?' in Racket.
> >>
> >> I won't, though, if Matthew has near-future Big Plans. Or Medium Plans.
> >>
> >> I see we have "tests/racket/benchmarks". Should I just drop the code
> >> there, or is there some kind of procedure or protocol I should follow?
> >
> >
> > Generally that directory is for benchmark Racket against other
> languages, so
> > the program has to be cross-compatible. I think you are talking about a
> > stress test, which can be used to monitor Racket's performance against
> > itself in the future to catch regressions. That's in tests/racket/stress.
>
> I don't think that's right about the `benchmarks` directory -- the
> `shootout` directory is not cross-compatible, and we have Typed Racket
> benchmarks that are mostly used for benchmarking TR against plain R.
>
> Sam
>



-- 
Jay McCarthy <jay at cs.byu.edu>
Assistant Professor / Brigham Young University
http://faculty.cs.byu.edu/~jay

"The glory of God is Intelligence" - D&C 93
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