Not able to get scaled performance on increasing number of threads

[FG]

On 2013-02-01 20:33, Dmitry Olshansky wrote:
> Mine reiteration on it, with a bit of help from std.parallelism.
> std.parallelism uses thread pool thus it's somewhat faster then creating threads
> anew.

Interestingly, threads+barrier here wasn't much slower than tasks:
14% slower for dmd32, only 5% for gdc64
(and taskpool in dmd 13% slower than in gdc).