From ceb74f652917c662175f77994b53e76aed54546f Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Fri, 31 Jan 2025 10:20:21 -0500
Subject: [PATCH v1 2/2] config: Rename "Asynchronous Behavior" to "IO"

"IO" seems more descriptive than "Asynchronous Behavior", given that some of
the GUCs in the section don't relate to anything asynchronous.

Most other abbreviations in the config sections are un-abbreviated, but
"Input/Output" seems less likely to be helpful than just IO or I/O.

Discussion: https://postgr.es/m/x3tlw2jk5gm3r3mv47hwrshffyw7halpczkfbk3peksxds7bvc@lguk43z3bsyq
---
 src/include/utils/guc_tables.h                |  2 +-
 src/backend/utils/misc/guc_tables.c           | 10 +++++-----
 src/backend/utils/misc/postgresql.conf.sample |  2 +-
 doc/src/sgml/config.sgml                      |  4 ++--
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/include/utils/guc_tables.h b/src/include/utils/guc_tables.h
index 0b16b4dcf57..1c1c5b6ea52 100644
--- a/src/include/utils/guc_tables.h
+++ b/src/include/utils/guc_tables.h
@@ -64,7 +64,7 @@ enum config_group
 	RESOURCES_DISK,
 	RESOURCES_KERNEL,
 	RESOURCES_BGWRITER,
-	RESOURCES_ASYNCHRONOUS,
+	RESOURCES_IO,
 	RESOURCES_WORKER_PROCESSES,
 	WAL_SETTINGS,
 	WAL_CHECKPOINTS,
diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c
index c6a999a64cd..81d80ef1bc0 100644
--- a/src/backend/utils/misc/guc_tables.c
+++ b/src/backend/utils/misc/guc_tables.c
@@ -682,7 +682,7 @@ const char *const config_group_names[] =
 	[RESOURCES_DISK] = gettext_noop("Resource Usage / Disk"),
 	[RESOURCES_KERNEL] = gettext_noop("Resource Usage / Kernel Resources"),
 	[RESOURCES_BGWRITER] = gettext_noop("Resource Usage / Background Writer"),
-	[RESOURCES_ASYNCHRONOUS] = gettext_noop("Resource Usage / Asynchronous Behavior"),
+	[RESOURCES_IO] = gettext_noop("Resource Usage / IO"),
 	[RESOURCES_WORKER_PROCESSES] = gettext_noop("Resource Usage / Worker Processes"),
 	[WAL_SETTINGS] = gettext_noop("Write-Ahead Log / Settings"),
 	[WAL_CHECKPOINTS] = gettext_noop("Write-Ahead Log / Checkpoints"),
@@ -3181,7 +3181,7 @@ struct config_int ConfigureNamesInt[] =
 	{
 		{"effective_io_concurrency",
 			PGC_USERSET,
-			RESOURCES_ASYNCHRONOUS,
+			RESOURCES_IO,
 			gettext_noop("Number of simultaneous requests that can be handled efficiently by the disk subsystem."),
 			NULL,
 			GUC_EXPLAIN
@@ -3195,7 +3195,7 @@ struct config_int ConfigureNamesInt[] =
 	{
 		{"maintenance_io_concurrency",
 			PGC_USERSET,
-			RESOURCES_ASYNCHRONOUS,
+			RESOURCES_IO,
 			gettext_noop("A variant of \"effective_io_concurrency\" that is used for maintenance work."),
 			NULL,
 			GUC_EXPLAIN
@@ -3210,7 +3210,7 @@ struct config_int ConfigureNamesInt[] =
 	{
 		{"io_combine_limit",
 			PGC_USERSET,
-			RESOURCES_ASYNCHRONOUS,
+			RESOURCES_IO,
 			gettext_noop("Limit on the size of data reads and writes."),
 			NULL,
 			GUC_UNIT_BLOCKS
@@ -3222,7 +3222,7 @@ struct config_int ConfigureNamesInt[] =
 	},
 
 	{
-		{"backend_flush_after", PGC_USERSET, RESOURCES_ASYNCHRONOUS,
+		{"backend_flush_after", PGC_USERSET, RESOURCES_IO,
 			gettext_noop("Number of pages after which previously performed writes are flushed to disk."),
 			NULL,
 			GUC_UNIT_BLOCKS
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index 1197efb26df..a712ae1a375 100644
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -192,7 +192,7 @@
 #bgwriter_lru_multiplier = 2.0		# 0-10.0 multiplier on buffers scanned/round
 #bgwriter_flush_after = 0		# measured in pages, 0 disables
 
-# - Asynchronous Behavior -
+# - IO -
 
 #backend_flush_after = 0		# measured in pages, 0 disables
 #effective_io_concurrency = 1		# 1-1000; 0 disables prefetching
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index ca6077d1666..3d1919969d9 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -2506,8 +2506,8 @@ include_dir 'conf.d'
      </para>
     </sect2>
 
-    <sect2 id="runtime-config-resource-async-behavior">
-     <title>Asynchronous Behavior</title>
+    <sect2 id="runtime-config-resource-io">
+     <title>IO</title>
 
      <variablelist>
       <varlistentry id="guc-backend-flush-after" xreflabel="backend_flush_after">
-- 
2.48.1.76.g4e746b1a31.dirty