Re: WIP: WAL prefetch (another approach)

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От Thomas Munro
Тема Re: WIP: WAL prefetch (another approach)
Дата
Msg-id CA+hUKGJKKh8TbA+6977zK5TKUSsTspBHsr0s4S42q7ynkxcPGQ@mail.gmail.com
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Ответ на Re: WIP: WAL prefetch (another approach)  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: WIP: WAL prefetch (another approach)  (Andres Freund <andres@anarazel.de>)
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On Thu, Apr 22, 2021 at 1:21 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
> I've also tried to reproduce on 32-bit and 64-bit Intel, without
> success.  So if this is real, maybe it's related to being big-endian
> hardware?  But it's also quite sensitive to $dunno-what, maybe the
> history of WAL records that have already been replayed.

Ah, that's interesting.  There are a couple of sparc64 failures and a
ppc64 failure in the build farm, but I couldn't immediately spot what
was wrong with them or whether it might be related to this stuff.

Thanks for the clues.  I'll see what unusual systems I can find to try
this on....



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