}That's my reading of Sun's claims in Solaris and given that }they have a little more experience with this kind of thing }I'm inclined to believe them until I see facts stating the }contrary.

I would caution against using Solaris to draw too detailed conclusions. The locking in Solaris is finer grained than we are likely to achieve for some time. Also having per processor run queues and all the associated machinery to support this makes Solaris characterize quite different than what we have today. As time goes on we will have to make decisions on the number of processors we want to support most efficiently. The answer for our problem set may be quite different than what Sun arrived for their problem set. While I have no specific knowledge that this is true, I would not be surprised if the Solaris machine dependent implementation differs between Sparc and X86 with only Sparc being reported.

Chuck

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