Some updates with Racket v7.5[cs] and go 1.13.5 in my Mac mini 2018:
$ raco exe whispers.rkt
$ time ./whispers
#<thread:...racket/whispers.rkt:15:8>
100001
1.85 real 1.63 user 0.20 sys
$ time ./hello
100001
0.28 real 0.54 user 0.14 sys
Seems that Racket v7.5[cs] doing much better right now compare with the
original post :
https://cxwangyi.wordpress.com/2012/07/29/chinese-whispers-in-racket-and-go/
wangyi@WangYiIMac$time go run daisy-chain.go
100001
real 0m1.045s
user 0m0.367s
sys 0m0.231s
wangyi@WangYiIMac$raco exe daisy-chain.rkt && time ./daisy-chain
100001
real 0m42.905s
user 0m29.579s
sys 0m11.075s
在 2012年8月19日星期日 UTC+8下午10:26:02，Matthew Flatt写道：
>
> At Sat, 18 Aug 2012 22:40:19 -0400, Danny Yoo wrote:
> > > If the 1 minute versus 1 second is accurate, then there was a 60x
> > > performance difference in the beginning and Matthew managed to improve
> > > it by a factor of 5 or even slightly over 6 when tuning, so it seems
> > > to me Racket would still be slower by 10x.
> >
> >
> > I checked with the blog author a few days ago, and he reports that one
> of
> > his test programs runs significantly slower under the development
> version
> > of Racket vs. 5.2.1, after these changes:
> >
> > cxwangyi <http://cxwangyi.wordpress.com/> says:
> > August 15, 2012 at 7:53
> > am<
> http://cxwangyi.wordpress.com/2012/07/29/chinese-whispers-in-racket-and-go/#c
> > omment-478>
> >
> > Thanks for the update, and I am now looking forward to v5.3.0.18.
> >
> > One more thing: I just compared v5.2.1 with v5.3.0.17, and found the
> latter
> > runs times slower.
>
> Version 5.3.0.17 is before the repair. Still, the results for v5.2.1
> and v5.3.0.17 should have been the same, so I've followed up there to
> ask for more information.
>
> ____________________
> Racket Users list:
> http://lists.racket-lang.org/users
>
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