[racket] Thread creation slow?

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.