On Sat, Feb 23, 2008 at 1:51 PM, Igor Stasenko <siguctua at gmail.com> wrote:
> In short: Less sharing - less contention. More sharing - more contention.
>
>  If you put 2 points on a line and call them 'no sharing' and 'share
>  everything', then
>  any system which allows you run on multiple cores and operate over
>  single domain (be it single memory or multiple standalone memories) is
>  lies somewhere in the middle.
>
>  You can pick a starting point from where you moving to that golden
>  point - from 'share everything' or from 'share nothing'. But it's no
>  doubt, no matter from where you started, you will always move towards
>  'golden' middle point.

But the question is, where do you make your trade offs.  If you take
the simple way *for you* then just give access to threading to
everyone and let them suffer with the pain of a paradigm too complex
to be done correctly.

If you take the way that's simply for *everyone else* then you put
this sharing inside the VM in the places it makes since and hide it
from the language level (e.g. how at least Erlang does it)