| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Alexander Korotkov <aekorotkov(at)gmail(dot)com> |
| Cc: | Xuneng Zhou <xunengzhou(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Peter Eisentraut <peter(at)eisentraut(dot)org>, Thomas Munro <thomas(dot)munro(at)gmail(dot)com>, Álvaro Herrera <alvherre(at)kurilemu(dot)de>, Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Michael Paquier <michael(at)paquier(dot)xyz>, jian he <jian(dot)universality(at)gmail(dot)com>, Tomas Vondra <tomas(at)vondra(dot)me>, Yura Sokolov <y(dot)sokolov(at)postgrespro(dot)ru> |
| Subject: | Re: Implement waiting for wal lsn replay: reloaded |
| Date: | 2026-04-07 13:52:33 |
| Message-ID: | fu7fhl3jo3lwufvznmmdmoy3nc6ydijisutt34747b2ora2qvl@mi3hpzofw46h |
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| Lists: | pgsql-hackers |
Hi,
On 2026-04-07 16:46:29 +0300, Alexander Korotkov wrote:
> On Tue, Apr 7, 2026, 16:18 Andres Freund <andres(at)anarazel(dot)de> wrote:
> > On 2026-04-07 21:05:40 +0800, Xuneng Zhou wrote:
> > > I’ve posted two patches. The first fixes the duplication issue
> > > reported by Andres and is fairly straightforward. The second turned
> > > out to be more complex than expected, and I’m still working through
> > > possible solutions. Feedback or alternative approaches would be very
> > > helpful.
> > > I also spent some time drafting a patch to address the memory ordering
> > > issue and will post it later.
> >
> > I propose quickly applying a minimal patch like the attached, to get the
> > test
> > performance back to normal.
> >
> > Will do so unless somebody protests within in one CI cycle and one coffee.
> >
>
> I would be able to review them only after several hours. But +1 for
> applying now to get rid of buildfarm slowdown.
Done.
Just to be clear, I didn't apply Xuneng's patches, just the minimal fix for
the slowdown.
Greetings,
Andres Freund
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