[Lazarus] semaphores

[Lukasz Sokol]

On 09/02/2012 11:18, Mark Morgan Lloyd wrote:
> Lukasz Sokol wrote:
>> On 09/02/2012 10:01, Sven Barth wrote:
>> 
>>> The memory that is used by CPU caches is the fastest (but also
>>> the most expensive that's why it's only used for the relatively
>>> small caches).
>>> 
>>> Regards, Sven
>>> 
>> Is there a way for a non-kernel-developer or plain FPC/Laz user to 
>> control what is stored in cpu cache ? I thought cache management is
>> done transparently to userspace...?
> 
> Only on IA-64 ("Itanic") as far as I know, and in any case for
> prefetches etc. to be effective the application code would have to be
> intimately familiar with the details of the hardware implementation.
> It's the sort of thing that would be a compile-time option on a Cray
> :-)
> 
Thought so ;) (disclaimer : I read lkml sometimes stumbling upon devs 
reordering paddings in structures to make them fit into cachelines)

L.