From 81385261362962deb9861b39b509aeffe213721d Mon Sep 17 00:00:00 2001 From: Thomas Munro Date: Tue, 30 Jul 2024 21:52:46 +1200 Subject: Remove --disable-atomics, require 32 bit atomics. Modern versions of all relevant architectures and tool chains have atomics support. Since edadeb07, there is no remaining reason to carry code that simulates atomic flags and uint32 imperfectly with spinlocks. 64 bit atomics are still emulated with spinlocks, if needed, for now. Any modern compiler capable of implementing C11 must have the underlying operations we need, though we don't require C11 yet. We detect certain compilers and architectures, so hypothetical new systems might need adjustments here. Reviewed-by: Heikki Linnakangas Reviewed-by: Tom Lane (concept, not the patch) Reviewed-by: Andres Freund (concept, not the patch) Discussion: https://postgr.es/m/3351991.1697728588%40sss.pgh.pa.us --- doc/src/sgml/installation.sgml | 25 ------------------------- 1 file changed, 25 deletions(-) (limited to 'doc/src') diff --git a/doc/src/sgml/installation.sgml b/doc/src/sgml/installation.sgml index 3f19f272b17..4ab8ddba7c1 100644 --- a/doc/src/sgml/installation.sgml +++ b/doc/src/sgml/installation.sgml @@ -1258,18 +1258,6 @@ build-postgresql: - - - - - Disable use of CPU atomic operations. This option does nothing on - platforms that lack such operations. On platforms that do have - them, this will result in poor performance. This option is only - useful for debugging or making performance comparisons. - - - - @@ -2674,19 +2662,6 @@ ninja install - - - - - This option is set to true by default; setting it to false will - disable use of CPU atomic operations. The option does nothing on - platforms that lack such operations. On platforms that do have - them, disabling atomics will result in poor performance. Changing - this option is only useful for debugging or making performance comparisons. - - - - -- cgit v1.2.3