Messages in this thread | | | Date | Wed, 8 Mar 2006 16:54:08 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: [PATCH] Document Linux's memory barriers [try #2] |
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On Thu, 9 Mar 2006, Paul Mackerras wrote: > > If you ask me, the need for mmiowb on some platforms merely shows that > those platforms' implementations of spinlocks and read*/write* are > buggy...
You could also state that same as
"If you ask me, the need for mmiowb on some platforms merely shows that those platforms perform like a bat out of hell, and I think they should be slower"
because the fact is, x86 memory barrier rules are just about optimal for performance.
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