Re: PowerPC fastpaths for mutex subsystem

[Andrew Morton]

Anton Blanchard <anton@xxxxxxxxx> wrote:
>
>  
> > Doens't this mean that the sped-up mutexes are still slower than semaphores?
> 
> Wasnt most of the x86 mutex gain a result of going from fair to unfair
> operation? The current ppc64 semaphores are unfair.
> 

What's "unfair"?  Mutexes are FIFO, as are x86 semaphores.
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