Re: [HACKERS] Final Thoughts for 8.3 on LWLocking and Scalability

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04-18-2008, 10:36 AM

Simon Riggs

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Re: [HACKERS] Final Thoughts for 8.3 on LWLocking and Scalability

On Tue, 2007-09-11 at 10:42 +0100, Simon Riggs wrote:

> 2. CountActiveBackends() searches the whole of the proc array, even
> though it could stop when it gets to commit_siblings. Stopping once the
> heuristic has been determined seems like the best thing to do. A small
> patch to implement this is attached.

backend/access/transam/xact.c | 2 !!
backend/storage/ipc/procarray.c | 11 !!!!!!!!!!!
include/storage/procarray.h | 2 !!
3 files changed, 15 modifications(!)

--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com

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Re: [HACKERS] Final Thoughts for 8.3 on LWLocking and Scalability