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Re: AIO writes vs hint bits vs checksums

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Maxim Orlov <orlovmg@gmail.com>
Cc: Andres Freund <andres@anarazel.de>, Heikki Linnakangas <hlinnaka@iki.fi>, Noah Misch <noah@leadboat.com>, pgsql-hackers@postgresql.org, Robert Haas <robertmhaas@gmail.com>, Thomas Munro <thomas.munro@gmail.com>
Date: 2025-10-28T04:06:53Z
Lists: pgsql-hackers 
On Mon, Oct 27, 2025 at 02:48:43PM +0300, Maxim Orlov wrote:
> I think there is one thing that could be improved here. The isolation
> test index-killtuples (377b7ab1452) adds a new dependency:
> contrib/btree_gin. contrib/btree_gist. This must be taken into
> account in the makefile.

Also mentioned here:
https://postgr.es/m/aKJsWedftW7UX1WM@paquier.xyz

It looks that the conclusion would be to move this test into its own
test module to avoid the external contrib/ dependency in
src/test/isolation/, as duplicated Makefile rules in
src/test/isolation/Makefile are unpleasant.
--
Michael

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Require share-exclusive lock to set hint bits and to flush

  2. heapam: Move logic to handle HEAP_MOVED into a helper function

  3. Add very basic test for kill_prior_tuples

  4. aio: Add README.md explaining higher level design

  5. heapam: Only set tuple's block once per page in pagemode

  6. bufmgr: Use AIO in StartReadBuffers()

  7. bufmgr: Implement AIO read support

  8. aio: Implement support for reads in smgr/md/fd

  9. aio: Add io_method=io_uring

  10. aio: Add io_method=worker

  11. aio: Infrastructure for io_method=worker

  12. aio: Add core asynchronous I/O infrastructure

  13. bufmgr: Make it easier to change number of buffer state bits