Horton

Re: Asynchronous and "direct" IO support for PostgreSQL.

Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>

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From: Bharath Rupireddy <bharath.rupireddyforpostgres@gmail.com>
To: Andres Freund <andres@anarazel.de>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>, Thomas Munro <thomas.munro@gmail.com>, David Rowley <dgrowleyml@gmail.com>, Melanie Plageman <melanieplageman@gmail.com>
Date: 2022-05-15T15:11:10Z
Lists: pgsql-hackers 
On Wed, Sep 1, 2021 at 11:27 AM Andres Freund <andres@anarazel.de> wrote:
>
> Hi,
>
> Attached is an updated patch AIO series. The major changes are:

Hi Andres, is there a plan to get fallocate changes alone first? I think
fallocate API can help parallel inserts work (bulk relation extension
currently writes zero filled-pages) and make pre-padding while allocating
WAL files faster.

Regards,
Bharath Rupireddy.

Commits

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

  2. bufmgr: Use AIO in StartReadBuffers()

  3. bufmgr: Implement AIO read support

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

  5. aio: Add io_method=io_uring

  6. aio: Add io_method=worker

  7. aio: Infrastructure for io_method=worker

  8. aio: Add core asynchronous I/O infrastructure