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Re: Removing PD_ALL_VISIBLE

Jeff Davis <pgsql@j-davis.com>

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From: Jeff Davis <pgsql@j-davis.com>
To: Heikki Linnakangas <hlinnakangas@vmware.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Pavan Deolasee <pavan.deolasee@gmail.com>, Simon Riggs <simon@2ndquadrant.com>, pgsql-hackers@postgresql.org
Date: 2013-01-17T20:00:16Z
Lists: pgsql-hackers 
On Thu, 2013-01-17 at 17:14 +0200, Heikki Linnakangas wrote:
> I don't remember if I ever actually tested that 
> though. Maybe I was worrying about nothing and hitting the VM page on 
> every update is ok.

I tried, but was unable to show really anything at all, even without
keeping the VM page pinned. I think the bottleneck is elsewhere;
although I am keeping the page pinned in this patch to prevent it from
becoming a bottleneck.

Regards,
	Jeff Davis