| From: | Andres Freund <andres(at)anarazel(dot)de> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| 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 18:32:10 |
| Message-ID: | smgqjh356dkvs6ixi3yiotxibajnhjzqp7xfvpj43lpavls4xz@eu7bhcuqiukt |
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| Lists: | pgsql-hackers |
Hi,
On 2025-06-05 12:47:52 -0400, Tom Lane wrote:
> 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.
I've attached a first draft.
I can't make heads or tails of the ordering in configure.ac, so the function
test is probably in the wrong place.
Greetings,
Andres
| Attachment | Content-Type | Size |
|---|---|---|
| v1-0001-wip-aio-Combine-io_uring-memory-mappings-if-suppo.patch | text/x-diff | 10.9 KB |
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