bug#14756: threads - par-map - multicore issue

[David Pirotte]

Hello,

        guile --version
        guile (GNU Guile) 2.0.9.20-10454

It seems that the par-map not using all cores problem has some how been 
reintroduced?

        guile -c '(begin (use-modules (ice-9 threads)) (par-map 1+ (iota 
400000)))'

only uses 1 core [it seems it uses some other [maybe all, i can't tell] a 
couple of
milliseconds, then drops to 1 core only.

Thanks,
David

;; -- 

address@hidden:~ 16 $ guile -c '(begin
>     (use-modules (ice-9 threads))
>     (par-map 1+ (iota 400))
>     (display (current-processor-count)) (display "\n")
>     (display (length (@@ (ice-9 futures) %workers))) (display "\n"))'
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