| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Peter Geoghegan <pg(at)heroku(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Clock sweep not caching enough B-Tree leaf pages? |
| Date: | 2014-04-15 00:30:16 |
| Message-ID: | 20140415003016.GB9072@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Mon, Apr 14, 2014 at 10:11:53AM -0700, Peter Geoghegan wrote:
> Has anyone thought about this in the last few years? I know that Tom
> examined the LRU-K paper back in 2000 [5], but was discouraged by some
> kind of contention or CPU overhead (although he did say he intended to
> revisit the question). Obviously a lot has changed in the past 14
> years, particularly with regard to CPU characteristics.
I am glad you are looking at this. You are right that it requires a
huge amount of testing, but clearly our code needs improvement in this
area.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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