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Re: postmaster uses more CPU in 18 beta1 with io_method=io_uring

From:	Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To:	Andres Freund <andres(at)anarazel(dot)de>
Cc:	MARK CALLAGHAN <mdcallag(at)gmail(dot)com>, pgsql-hackers(at)lists(dot)postgresql(dot)org, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Tomas Vondra <tomas(at)vondra(dot)me>, Nathan Bossart <nathandbossart(at)gmail(dot)com>
Subject:	Re: postmaster uses more CPU in 18 beta1 with io_method=io_uring
Date:	2025-06-05 16:47:52
Message-ID:	1295562.1749142072@sss.pgh.pa.us
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Andres Freund <andres(at)anarazel(dot)de> writes:
> I think this is a big enough pitfall that it's, obviously assuming the patch
> has a sensible complexity, worth fixing this in 18. RMT, anyone, what do you
> think?

Let's see the patch ... but yeah, I'd rather not ship 18 like this.

regards, tom lane

In response to

Re: postmaster uses more CPU in 18 beta1 with io_method=io_uring at 2025-06-05 16:04:01 from Andres Freund

Responses

Re: postmaster uses more CPU in 18 beta1 with io_method=io_uring at 2025-06-05 18:32:10 from Andres Freund
Re: postmaster uses more CPU in 18 beta1 with io_method=io_uring at 2025-06-05 20:01:07 from Nathan Bossart

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