Re: Reduce timing overhead of EXPLAIN ANALYZE using rdtsc?

From: David Geier <geidav(dot)pg(at)gmail(dot)com>
To: Robert Haas <robertmhaas(at)gmail(dot)com>, Álvaro Herrera <alvherre(at)kurilemu(dot)de>
Cc: Lukas Fittl <lukas(at)fittl(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Michael Paquier <michael(at)paquier(dot)xyz>, Ibrar Ahmed <ibrar(dot)ahmad(at)gmail(dot)com>, Maciek Sakrejda <m(dot)sakrejda(at)gmail(dot)com>, Tomas Vondra <tomas(at)vondra(dot)me>
Subject: Re: Reduce timing overhead of EXPLAIN ANALYZE using rdtsc?
Date: 2025-11-19 07:20:25
Message-ID: 7d54ded4-74cc-4085-97f0-21ad3c660eb7@gmail.com
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On 20.10.2025 21:59, Robert Haas wrote:
> On Sun, Oct 19, 2025 at 2:16 PM Álvaro Herrera <alvherre(at)kurilemu(dot)de> wrote:
>> If I were
>> a consultant trying to understand a customer's system, I would have to
>> ask them to run it twice just in case 'fast' is supported, and I don't
>> think that's very helpful.
>
> Big +1 from me.
>

That makes sense. I'm planning to rebase the patch the next days. Then
I'll also take care of that.

--
David Geier

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