| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Peter Geoghegan <pg(at)heroku(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>, Magnus Hagander <magnus(at)hagander(dot)net> |
| Subject: | Re: autovacuum_work_mem |
| Date: | 2013-12-11 18:35:32 |
| Message-ID: | 52A8B074.2080608@agliodbs.com |
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| Thread: | |
| Lists: | pgsql-hackers |
On 12/11/2013 09:57 AM, Robert Haas wrote:
> I don't agree with that assessment. Anything that involves changing
> the scheduling of autovacuum is a major project that will legitimately
> provoke much controversy. Extensive testing will be needed to prove
> that the new algorithm doesn't perform worse than the current
> algorithm in any important cases. I have my doubts about whether that
> can be accomplished in an entire release cycle, let alone 2-3 days.
> In contrast, the patch proposed does something that is easy to
> understand, clearly safe, and an improvement over what we have now.
+1
There is an inherent tuning and troubleshooting challenge in anything
involving a feedback loop.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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