Re: Final Thoughts for 8.3 on LWLocking and Scalability

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От Tom Lane
Тема Re: Final Thoughts for 8.3 on LWLocking and Scalability
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Msg-id 27926.1189520509@sss.pgh.pa.us
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Ответ на Final Thoughts for 8.3 on LWLocking and Scalability  (Simon Riggs <simon@2ndquadrant.com>)
Ответы Re: Final Thoughts for 8.3 on LWLocking and Scalability  (Simon Riggs <simon@2ndquadrant.com>)
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Simon Riggs <simon@2ndquadrant.com> writes:
> 1. The ProcArrayLock is acquired Exclusive-ly by only one remaining
> operation: XidCacheRemoveRunningXids(). Reducing things to that level is
> brilliant work, Florian and Tom.

It would be brilliant if it were true, but it isn't.  Better look again.
        regards, tom lane

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