Re: [Factor-talk] context switch benchmarking

[Csaba H. <csa...@cr...>]

On 2007-04-16, Chris Double <chr...@do...> wrote:
> If all you want to test is coroutines, rather than the message passing
> aspects of concurrency, you can use libs/coroutines:
>
> "libs/coroutines" require
> USE: coroutines
>: gen ( -- co ) [ 100000 [ over coyield 2drop ] each f swap coyield ] cocreate ;
>: run ( co -- ) f swap coresume [ run ] [ drop ] if ;
>
> [ gen run ] time
>
> This is the equivalent of the Python sample you posted. Unfortunately
> continuations don't compile so the test runs interpreted.

Ah, thanks, superb. I did look into the coroutines module but apparently
I was somewhat absent-minded as I looked over the co* words.

The benchmark result is not in the top category but I think it's still
not bad given that continuations are implemented in the language itself
(and, as you say, they run interpreted).

 python:                      0.02 s
 gambit scheme (interpreted): 0.25 s
 python with greenlets based
   generators:                0.45 s
 factor:                      0.73 s
 ruby:                        1.35 s

Csaba