Horton

Re: pg_stat_bgwriter.buffers_backend is pretty meaningless (and more?)

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Andres Freund <andres@anarazel.de>
Cc: Kyotaro Horiguchi <horikyota.ntt@gmail.com>, melanieplageman@gmail.com, vignesh21@gmail.com, pryzby@telsasoft.com, lukas@fittl.com, alvherre@alvh.no-ip.org, magnus@hagander.net, pgsql-hackers@postgresql.org, thomas.munro@gmail.com, m.sakrejda@gmail.com
Date: 2023-02-26T19:40:00Z
Lists: pgsql-hackers 
Andres Freund <andres@anarazel.de> writes:
> On 2023-02-26 13:20:00 -0500, Tom Lane wrote:
>> I hadn't run my buildfarm-compile-warning scraper for a little while,
>> but I just did, and I find that this commit is causing warnings on
>> no fewer than 14 buildfarm animals.  They all look like

> What other animals? If it had been just ayu / clang 4, I'd not be sure it's
> worth doing much here.

ayu
batfish
demoiselle
desmoxytes
dragonet
idiacanthus
mantid
petalura
phycodurus
pogona
wobbegong

Some of those are yours ;-)

Actually there are only 11, because I miscounted before, but
there are new compilers in that group not only old ones.
desmoxytes is gcc 10, for instance.

			regards, tom lane

Commits

  1. Stabilize pg_stat_io writes test

  2. Fix flakey pg_stat_io test

  3. Suppress more compiler warnings in new pgstats code.

  4. Suppress compiler warnings in new pgstats code.

  5. Add tests for pg_stat_io

  6. Create regress_tblspc in test_setup

  7. Add pg_stat_io view, providing more detailed IO statistics

  8. pgstat: Track more detailed relation IO statistics

  9. pgstat: Infrastructure for more detailed IO statistics

  10. doc: Fix some issues in logical replication section

  11. Manual cleanup and pgindent of pgstat and bufmgr related code

  12. Have the planner consider Incremental Sort for DISTINCT

  13. Use actual backend IDs in pg_stat_get_backend_idset() and friends.

  14. Remove redundant call to pgstat_report_wal()

  15. Add BackendType for standalone backends

  16. Initialize backend status reporting during bootstrap.