Re: [rfc][patch 2/2] x86_64: FIFO ticket spinlocks

[Alan Cox]

> however the difference is quite small on Core2 and Opteron when working out of
> cache, and becomes almost insignificant even on P4 when the lock misses cache.
> trylock is more significantly slower, but they are relatively rare.

This has a 255 processor limit (worst case). That should probably be
clearly documented for the future.

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