Messages in this thread | | | Date | Tue, 13 Dec 2005 06:13:12 -0700 | From | Matthew Wilcox <> | Subject | Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation |
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On Tue, Dec 13, 2005 at 01:09:31PM +0000, Alan Cox wrote: > On Maw, 2005-12-13 at 13:47 +0100, Oliver Neukum wrote: > > Can't you use the pointer as a hash input? > > Some platforms already do this for certain sets of operations like > atomic_t. The downside however is that you no longer control the lock > contention or cache line bouncing. It becomes a question of luck rather > than science as to how well it scales.
s/luck/statistics/
You can always increase the size of the hash table if you encounter scaling problems. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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