From: Bruce Momjian Date: Fri, 22 May 2020 00:28:38 +0000 (-0400) Subject: doc: suggest 1.1 as a random_page_cost value for SSDs X-Git-Tag: REL9_6_19~66 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7bf6b3e0075538598a1fb02a11f3080678814ed5;p=thirdparty%2Fpostgresql.git doc: suggest 1.1 as a random_page_cost value for SSDs Reported-by: yigong hu Discussion: https://postgr.es/m/CAOxFffcourucFqSk+tZA13ErS3XRYkDy6EeaPff4AvHGiEEuug@mail.gmail.com Backpatch-through: 9.5 --- diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml index 92681cf4530..d56f4274070 100644 --- a/doc/src/sgml/config.sgml +++ b/doc/src/sgml/config.sgml @@ -3650,7 +3650,8 @@ include_dir 'conf.d' the database is smaller than the total server memory, decreasing random_page_cost can be appropriate. Storage that has a low random read cost relative to sequential, e.g. solid-state drives, might - also be better modeled with a lower value for random_page_cost. + also be better modeled with a lower value for random_page_cost, + e.g., 1.1.