Re: 8.0.X and the ARC patent

Tom Lane wrote:
> Still to be determined: what we lose in extra I/O from the presumably
> less efficient cache management; also what sort of slowdown occurs on
> a single-CPU machine that isn't going to get any benefit from the
> increased amount of lock management.  But it looks promising.

Yea, that was one of my questions --- the new buffer locking helps SMP,
but how much does it hurt single-cpu machines?  Do we need autodetection
or a GUC to control SMP-beneficial locking?

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