| From: | Peter Geoghegan <pg(at)heroku(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Jim Nasby <jim(at)nasby(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Clock sweep not caching enough B-Tree leaf pages? |
| Date: | 2014-04-22 01:37:08 |
| Message-ID: | CAM3SWZSLuKhiqhLUMAhDBm6gekxOmZwJzqfJ0GS5JN=Ht9+MjA@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Mon, Apr 21, 2014 at 5:59 PM, Peter Geoghegan <pg(at)heroku(dot)com> wrote:
> LRU-K, and 2Q have roughly the same advantages. I'm
> reasonably confident you can have the best of both worlds, or
> something closer to it.
Having said that, a big part of what I'd like to accomplish here is to
address the more general problem of "correlated references". That's
probably something that has independent value.
--
Peter Geoghegan
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