Re: Wierd context-switching issue on Xeon

OK, added to TODO:

    * Investigate SMP context switching issues


---------------------------------------------------------------------------

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Tom Lane wrote:
> >> ...  The SMP issue seems to be not with whether there is
> >> instantaneous contention for the locked datastructure, but with the cost
> >> of making it possible for processor B to acquire a lock recently held by
> >> processor A.
>
> > I see.  I don't even see a TODO in there.  :-(
>
> Nothing more specific than "investigate SMP context switching issues",
> anyway.  We are definitely in a research mode here, rather than an
> engineering mode.
>
> ObQuote: "Research is what I am doing when I don't know what I am
> doing." - attributed to Werner von Braun, but has anyone got a
> definitive reference?
>
>             regards, tom lane
>

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