Grokking concurrency, message passing and Co

[BCS]

Hello div0,

> On 11/07/2010 20:00, BCS wrote:
> 
>> Hello div0,
>> 
>>> The rule of thumb is don't bother spawning more threads than you
>>> have cpus. You're just wasting resources mostly.
>>> 
>> You REALLY don't want more threads trying to run than you have cores.
>> Threads in a wait state, are less of an issue, but they still use up
>> resources.
>> 
> I think you're going a bit far there.

In what way?

And In re-reading my post, I noticed it can be read it two ways. The way 
I intended it, is as a "yes and" statement: while often there is little to 
be gained by having more threads than cpus/cores, there is almost always 
nothing to be gained by having more thread trying to do stuff at the same 
time than you have cpus/cores to run them on.

-- 
... <IXOYE><