| From: | Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com> |
|---|---|
| To: | Thomas Munro <thomas(dot)munro(at)gmail(dot)com> |
| Cc: | Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, "Drouvot, Bertrand" <bertranddrouvot(dot)pg(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)postgresql(dot)org, Jeff Davis <pgsql(at)j-davis(dot)com>, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com> |
| Subject: | Re: walsender performance regression due to logical decoding on standby changes |
| Date: | 2023-05-15 12:43:49 |
| Message-ID: | CAD21AoCv+9KyQ0BCNnd5CH53GNshSgGzvzt1JQkhueh8XnSi7A@mail.gmail.com |
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On Mon, May 15, 2023 at 1:49 PM Thomas Munro <thomas(dot)munro(at)gmail(dot)com> wrote:
>
> On Fri, May 12, 2023 at 11:58 PM Bharath Rupireddy
> <bharath(dot)rupireddyforpostgres(at)gmail(dot)com> wrote:
> > Andres, rightly put it - 'mis-using' CV infrastructure. It is simple,
> > works, and makes the WalSndWakeup() easy solving the performance
> > regression.
>
> Yeah, this seems OK, and better than the complicated alternatives. If
> one day we want to implement CVs some other way so that this
> I-know-that-CVs-are-really-made-out-of-latches abstraction leak
> becomes a problem, and we still need this, well then we can make a
> separate latch-wait-list thing.
+1
Regards,
--
Masahiko Sawada
Amazon Web Services: https://aws.amazon.com
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