| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Stephen Frost <sfrost(at)snowman(dot)net> |
| Cc: | Laurenz Albe <laurenz(dot)albe(at)cybertec(dot)at>, "Bossart, Nathan" <bossartn(at)amazon(dot)com>, Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, 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> |
| Subject: | Re: Change default of checkpoint_completion_target |
| Date: | 2020-12-10 17:21:26 |
| Message-ID: | 20201210172126.GA25979@alvherre.pgsql |
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| Lists: | pgsql-hackers |
Howdy,
On 2020-Dec-10, Stephen Frost wrote:
> * Laurenz Albe (laurenz(dot)albe(at)cybertec(dot)at) wrote:
> > On Tue, 2020-12-08 at 17:29 +0000, Bossart, Nathan wrote:
> > > +1 to setting checkpoint_completion_target to 0.9 by default.
> >
> > +1 for changing the default or getting rid of it, as Tom suggested.
>
> Attached is a patch to change it from a GUC to a compile-time #define
> which is set to 0.9, with accompanying documentation updates.
I think we should leave a doc stub or at least an <indexterm>, to let
people know the GUC has been removed rather than just making it
completely invisible. (Maybe piggyback on the stuff in [1]?)
[1] https://postgr.es/m/CAGRY4nyA=jmBNa4LVwgGO1GyO-RnFmfkesddpT_uO+3=mot8DA@mail.gmail.com
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