| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Peter Geoghegan <pg(at)heroku(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Bruce Momjian <bruce(at)momjian(dot)us>, Magnus Hagander <magnus(at)hagander(dot)net>, Andrew Dunstan <andrew(at)dunslane(dot)net>, Robert Haas <robertmhaas(at)gmail(dot)com>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: proposal: Set effective_cache_size to greater of .conf value, shared_buffers |
| Date: | 2014-05-07 18:40:59 |
| Message-ID: | 536A7E3B.7070100@agliodbs.com |
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| Lists: | pgsql-hackers |
On 05/07/2014 11:13 AM, Peter Geoghegan wrote:
> We ought to be realistic about the fact that the current
> recommendations around sizing shared_buffers are nothing more than
> folk wisdom. That's the best we have right now, but that seems quite
> unsatisfactory to me.
So, as one of several people who put literally hundreds of hours into
the original benchmarking which established the sizing recommendations
for shared_buffers (and other settings), I find the phrase "folk wisdom"
personally offensive. So, can we stop with this?
Otherwise, I don't think I can usefully participate in this discussion.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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