[M3devel] atomics vs. locks..

[Jay K]

http://msdn.microsoft.com/en-us/library/ee418650(VS.85).aspx


MemoryBarrier was measured as taking 20-90 cycles.

InterlockedIncrement was measured as taking 36-90 cycles.

Acquiring or releasing a critical section was measured as taking 40-100 cycles.

Acquiring or releasing a mutex was measured as taking about 750-2500 cycles

 

perhaps just use critical sections...

 

 

(I'm very ambivalent about atomics. It is just so darn difficult to do lockless programming.

Granted, if you are a systems language, then you need to be able to imlement the locks themselves.

 Perhaps.)


 - Jay
 		 	   		  
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