Re: reducing the overhead of frequent table locks - now, with WIP patch

Stephen Frost <sfrost@snowman.net>

From: Stephen Frost <sfrost@snowman.net>
To: Simon Riggs <simon@2ndQuadrant.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Joshua Berkus <josh@agliodbs.com>, Alvaro Herrera <alvherre@commandprompt.com>, pgsql-hackers <pgsql-hackers@postgresql.org>, "Joshua D. Drake" <jd@commandprompt.com>
Date: 2011-06-07T18:22:17Z
Lists: pgsql-hackers
* Simon Riggs (simon@2ndQuadrant.com) wrote:
> Before you arrived, it was quite normal to suggest tuning patches
> after feature freeze.

I haven't been around as long as some, but I think I've been around
longer than Robert, and I can say that I don't recall serious
performance patches, particularly ones around lock management and which
change a fair bit of good, generally being white-listed from feature
freeze or being pushed in after beta1.

Perhaps I've missed them or perhaps there's been a few exceptions that
I'm not remembering that make it look routine rather than an exception
basis.  We might have tweaked a config variable or changed a #define
somewhere close to the end of a cycle, but I really don't put those into
the same category as this change.

	Thanks,

		Stephen