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

Dilip Kumar <dilipbalaut@gmail.com>

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: 2024-02-01T10:03:34Z

Lists: pgsql-hackers

On Thu, Feb 1, 2024 at 3:19 PM Alvaro Herrera <alvherre@alvh.no-ip.org> wrote:
>
> Hah:
>
> postgres -c lc_messages=C -c shared_buffers=$((512*17))
>
> 2024-02-01 10:48:13.548 CET [1535379] FATAL:  invalid value for parameter "transaction_buffers": 17
> 2024-02-01 10:48:13.548 CET [1535379] DETAIL:  "transaction_buffers" must be a multiple of 16

Maybe we should resize it to the next multiple of the SLRU_BANK_SIZE
instead of giving an error?

-- 
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