Re: RFC: Allow EXPLAIN to Output Page Fault Information

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От Andres Freund
Тема Re: RFC: Allow EXPLAIN to Output Page Fault Information
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Msg-id zluvsuokej5tpqirkrmhwdikg5cwhkzu2dvlpkdizlukitu7vl@yaglatfcccho
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Ответ на Re: RFC: Allow EXPLAIN to Output Page Fault Information  (Jelte Fennema-Nio <postgres@jeltef.nl>)
Ответы Re: RFC: Allow EXPLAIN to Output Page Fault Information
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Hi,

On 2025-02-11 17:00:36 +0100, Jelte Fennema-Nio wrote:
> On Tue, 11 Feb 2025 at 16:36, Andres Freund <andres@anarazel.de> wrote:
> > Shrug. It means that it'll not work in what I hope will be the default
> > mechanism before long.  I just can't get excited for that. In all likelihood
> > it'll result in bug reports that I'll then be on the hook to fix.
> 
> My assumption was that io_uring would become the default mechanism on
> Linux. And that bgworker based AIO would generally only be used by
> platforms without similar functionality. Is that assumption incorrect?

Yes, at least initially:
1) it's not enabled on the kernel level everywhere
2) it requires an optional build dependency
3) it requires tuning the file descriptor ulimit, unless we can convince Tom
   that it's ok to do that ourselves

Greetings,

Andres Freund



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