Re: SLRU optimization - configurable buffer pool and partitioning the SLRU lock

Dilip Kumar <dilipbalaut@gmail.com>

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From: Dilip Kumar <dilipbalaut@gmail.com>

To: Alvaro Herrera <alvherre@alvh.no-ip.org>

Cc: tender wang <tndrwang@gmail.com>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>

Date: 2024-01-10T13:20:20Z

Lists: pgsql-hackers

Attachments

v13-0002-Divide-SLRU-buffers-into-banks.patch (application/octet-stream) patch v13-0002
v13-0003-Remove-the-centralized-control-lock-and-LRU-coun.patch (application/octet-stream) patch v13-0003
v13-0001-Make-all-SLRU-buffer-sizes-configurable.patch (application/octet-stream) patch v13-0001

On Mon, Jan 8, 2024 at 9:12 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
>
> Eh, apologies.  This email was an unfinished draft that I had laying
> around before the holidays which I intended to discard it but somehow
> kept around, and just now I happened to press the wrong key combination
> and it ended up being sent instead.  We had some further discussion,
> after which I no longer think that there is a problem here, so please
> ignore this email.
>
> I'll come back to this patch later this week.

 No problem

The patch was facing some compilation issues after some recent
commits, so I have changed it. Reported by Julien Tachoires (offlist)



--
Regards,
Dilip Kumar
EnterpriseDB: http://www.enterprisedb.com

Commits

Fix zeroing of pg_serial page without SLRU bank lock
- be2f07310063 17.0 landed
Fix misspelled assertions
- 0d3a71d0c8a7 17.0 landed
GUC table: Add description to computed variables
- 30b8d6e4ce11 17.0 landed
Improve performance of subsystems on top of SLRU
- 53c2a97a9266 17.0 landed
Rename SLRU elements in view pg_stat_slru
- bcdfa5f2e2f2 17.0 landed
Use atomic access for SlruShared->latest_page_number
- d172b717c6f4 17.0 landed
Split use of SerialSLRULock, creating SerialControlLock
- 7b745d85b80d 17.0 landed
Index SLRUs by 64-bit integers rather than by 32-bit integers
- 4ed8f0913bfd 17.0 cited
Add a macro templatized hashtable.
- b30d3ea824c5 10.0 cited