| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Michael Paquier <michael(at)paquier(dot)xyz> |
| Cc: | Stephen Frost <sfrost(at)snowman(dot)net>, Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>, "Bossart, Nathan" <bossartn(at)amazon(dot)com>, Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, Bernd Helmle <mailings(at)oopsware(dot)de>, "tsunakawa(dot)takay(at)fujitsu(dot)com" <tsunakawa(dot)takay(at)fujitsu(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: A few new options for CHECKPOINT |
| Date: | 2020-12-16 22:39:18 |
| Message-ID: | 20201216223918.GG4527@momjian.us |
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| Lists: | pgsql-hackers |
On Mon, Dec 7, 2020 at 11:22:01AM +0900, Michael Paquier wrote:
> On Sun, Dec 06, 2020 at 10:03:08AM -0500, Stephen Frost wrote:
> > * Alvaro Herrera (alvherre(at)alvh(dot)no-ip(dot)org) wrote:
> >> You keep making this statement, and I don't necessarily disagree, but if
> >> that is the case, please explain why don't we have
> >> checkpoint_completion_target set to 0.9 by default? Should we change
> >> that?
> >
> > Yes, I do think we should change that..
>
> Agreed. FWIW, no idea for others, but it is one of those parameters I
> keep telling to update after a default installation.
+1 for making it 0.9. FYI< Robert Haas has argued that our estimation
of completion isn't great, which is why it defaults to 0.5.
--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EnterpriseDB https://enterprisedb.com
The usefulness of a cup is in its emptiness, Bruce Lee
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