[Openmcl-devel] native threads

Tim Bradshaw tfb at tfeb.org
Fri Jan 5 15:46:39 PST 2024


If you have a million processors but only one of them can run the GC thread, then ...

> On 5 Jan 2024, at 23:03, David McClain <dbm at refined-audiometrics.com> wrote:
> 
> well… I know Amdahl’s Law - as in how much speedup you are entitled to, but I don’t see the connection here...
> 
>> On Jan 5, 2024, at 16:01, Tim Bradshaw <tfb at tfeb.org> wrote:
>> 
>>> On 5 Jan 2024, at 18:39, David McClain <dbm at refined-audiometrics.com> wrote:
>>> 
>>> In systems that are SMP capable, I would think that one thread could be dedicated, if needed, to GC duties
>> 
>> There's a famous law due to Amdahl which explains why that is not a good idea.
> 


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