Horton

Re: Clock sweep not caching enough B-Tree leaf pages?

Peter Geoghegan <pg@heroku.com>

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From: Peter Geoghegan <pg@heroku.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Jim Nasby <jim@nasby.net>, Robert Haas <robertmhaas@gmail.com>, Andres Freund <andres@2ndquadrant.com>, Merlin Moncure <mmoncure@gmail.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2014-04-22T01:30:54Z
Lists: pgsql-hackers 
On Mon, Apr 21, 2014 at 6:12 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Did you read the commit message I pointed to?

Yes.

> (See also 4e8af8d27.)

Oh, I wasn't actually aware of the fact that 2Q made it into the tree.
I thought that the first commit message you referred to just
referenced on-list discussion of 2Q. Interesting.

-- 
Peter Geoghegan

Commits

  1. Replace the BufMgrLock with separate locks on the lookup hashtable and