[Python-ideas] Python 3000 TIOBE -3%

[Masklinn]

On 2012-02-09, at 20:08 , Sturla Molden wrote:
> On 09.02.2012 19:50, Masklinn wrote:
>> I don't think I've seen a serious refcounted JS implementation in the last
>> decade. , although it is possible that JS runtimes have localized usage
>> of references and reference-counted resources. AFAIK all modern JS
>> runtimes are JITed which probably does not mesh well with refcounting.
>> 
>> In any case, V8 (Chrome's runtime) uses a stop-the-world generational
>> GC for sure[0],
> 
> And Chrome uses one *process* for each tab, right? Is there a reason Chrome does not use one thread for each tab, such as security?

I do not know the precise reasons no, but it probably has to do with
security and ensuring isolation yes (webpage semantics mandate that each
page gets its very own isolated javascript execution context)

>> Only because it's OS threads of course, Erlang is not evented and has no
>> problem spawning half a million (preempted) processes if there's RAM
>> enough to store them.
> 
> Actually, spawning half a million OS threads will burn the computer.
> 
> *POFF*
> 
> ... and it goes up in a ball of smoke.
> 
> Spawning half a million threads is the Windows equivalent of a fork bomb.
> 
> I think you confuse threads and fibers/coroutines.

No. You probably misread my comment somehow.