[fpc-devel] LockFree Queue algorithm

Michael Schnell mschnell at lumino.de
Wed Jan 30 08:42:33 CET 2008

> We don't need  wait to synchronize caches. It will be done by hardware.
Right. but waiting performed by the hardware does not take less long 
than waiting performed by software :-) .
> And i think synchronize cache with ram don't eat hundreads clock cycles.
In all cashed that contain the memory location, the appropriate cache 
line will be invalidated. Thus it needs to be reloaded from main memory 
before it can be accessed by the processor. This might introduce a huge 
delay in a processor a long time after the the locking instruction was 
performed by some different processor.


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