pgsql-performance - December 2021

Discussion of PostgreSQL's performance issues. Please see Guide to reporting problems and Slow Query Questions for some tips on how to write your performance question.

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Dec. 1, 2021

Thread Author Time
LwLockRelease performance Ashkil Dighin 14:26

Dec. 2, 2021

Thread Author Time
Re: LwLockRelease performance Tom Lane 22:19
Re: LwLockRelease performance Andres Freund 23:50

Dec. 4, 2021

Thread Author Time
An I/O error occurred while sending to the backend (PG 13.4) [email protected] 17:32
Re: An I/O error occurred while sending to the backend (PG 13.4) Justin Pryzby 17:59
RE: An I/O error occurred while sending to the backend (PG 13.4) [email protected] 19:18
Re: An I/O error occurred while sending to the backend (PG 13.4) Justin Pryzby 19:53

Dec. 7, 2021

Thread Author Time
Re: pg_trgm word_similarity query does not use index for input strings longer than 8 characters Laurenz Albe 03:10
Re: pg_trgm word_similarity query does not use index for input strings longer than 8 characters Tom Lane 17:08

Dec. 8, 2021

Thread Author Time
Re: pg_trgm word_similarity query does not use index for input strings longer than 8 characters pgsql-performance 18:43

Dec. 10, 2021

Thread Author Time
Re: PostgreSQLv14 TPC-H performance GCC vs Clang Imre Samu 18:21

Dec. 16, 2021

Thread Author Time
PostgreSQLv14 performance client-server-HammerDB arjun shetty 15:35

Dec. 21, 2021

Thread Author Time
Query is slower with a large proportion of NULLs in several columns Lars Bergeson 01:23
Re: Query is slower with a large proportion of NULLs in several columns David G. Johnston 01:49
Re: Query is slower with a large proportion of NULLs in several columns Tom Lane 01:51
Re: Query is slower with a large proportion of NULLs in several columns Lars Bergeson 04:11
Re: Query is slower with a large proportion of NULLs in several columns Justin Pryzby 04:51
Re: Query is slower with a large proportion of NULLs in several columns Tom Lane 05:01
Re: Query is slower with a large proportion of NULLs in several columns David G. Johnston 05:07
Re: Query is slower with a large proportion of NULLs in several columns David G. Johnston 05:08
Re: Query is slower with a large proportion of NULLs in several columns Tom Lane 05:33
Re: Lock contention high 📎 Yura Sokolov 05:45
Re: Query is slower with a large proportion of NULLs in several columns Justin Pryzby 21:13
Re: Query is slower with a large proportion of NULLs in several columns Lars Bergeson 22:53
Re: Query is slower with a large proportion of NULLs in several columns Tom Lane 23:07

Dec. 22, 2021

Thread Author Time
Re: Query is slower with a large proportion of NULLs in several columns David G. Johnston 00:45
WAL files keep piling up Zbigniew Kostrzewa 15:34
Re: WAL files keep piling up Ninad Shah 18:01
Re: WAL files keep piling up Zbigniew Kostrzewa 18:11
Re: WAL files keep piling up Tom Lane 18:18
Re: WAL files keep piling up Zbigniew Kostrzewa 19:26

Dec. 23, 2021

Thread Author Time
Re: WAL files keep piling up Laurenz Albe 10:04

Dec. 28, 2021

Thread Author Time
9.6 write time Marc Millas 16:52
Re: 9.6 write time Tom Lane 17:46
Re: 9.6 write time Marc Millas 17:55
Re: 9.6 write time Tom Lane 18:34
Re: 9.6 write time Marc Millas 18:59

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