diff options
| author | Bruce Momjian | 2025-05-29 02:43:13 +0000 |
|---|---|---|
| committer | Bruce Momjian | 2025-05-29 02:43:36 +0000 |
| commit | a1de1b0833b8e940f33fb2c7ab011e841a4d9063 (patch) | |
| tree | 927f42cca6e7e6335229d0799fa88205efce8573 /doc/src | |
| parent | 35a428f30b15a3ab0c9a0cc26ade3b4cc3e47d8e (diff) | |
doc PG 18 relnotes: split apart log_connections item
Also add details to asynchronous I/O item.
Reported-by: Melanie Plageman
Discussion: https://postgr.es/m/CAAKRu_YsVvyantS0X0Y_-vp_97=yGaoYJMXXyCEkR7pumAH3Jg@mail.gmail.com
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/release-18.sgml | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/doc/src/sgml/release-18.sgml b/doc/src/sgml/release-18.sgml index 83ff2225396..718f7b20bf1 100644 --- a/doc/src/sgml/release-18.sgml +++ b/doc/src/sgml/release-18.sgml @@ -569,6 +569,7 @@ Add an asynchronous I/O subsystem (Andres Freund, Thomas Munro, Nazir Bilal Yavu </para> <para> +This feature allows backends to queue multiple read requests, which allows for more efficient sequential scans, bitmap heap scans, and vacuums. This is enabled by server variable io_method, with server variables io_combine_limit and io_max_combine_limit added to control it. This also enables effective_io_concurrency and maintenance_io_concurrency values greater than zero for systems without fadvise() support. The new system view pg_aios shows the file handles being used for asynchronous I/O. @@ -682,15 +683,12 @@ This more accurately reflects modern hardware. <!-- Author: Melanie Plageman <melanieplageman@gmail.com> 2025-03-12 [9219093ca] Modularize log_connections output -Author: Melanie Plageman <melanieplageman@gmail.com> -2025-03-12 [18cd15e70] Add connection establishment duration logging --> <listitem> <para> Increase the logging granularity of server variable log_connections (Melanie Plageman) <ulink url="&commit_baseurl;9219093ca">§</ulink> -<ulink url="&commit_baseurl;18cd15e70">§</ulink> </para> <para> @@ -699,6 +697,18 @@ This server variable was previously only boolean; these options are still suppo </listitem> <!-- +Author: Melanie Plageman <melanieplageman@gmail.com> +2025-03-12 [18cd15e70] Add connection establishment duration logging +--> + +<listitem> +<para> +Add log_connections option to report the duration of connection stages (Melanie Plageman) +<ulink url="&commit_baseurl;18cd15e70">§</ulink> +</para> +</listitem> + +<!-- Author: Tom Lane <tgl@sss.pgh.pa.us> 2025-04-07 [3516ea768] Add local-address escape "%L" to log_line_prefix. --> |