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config: Rename "Asynchronous Behavior" to "I/O"

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"I/O" 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.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/x3tlw2jk5gm3r3mv47hwrshffyw7halpczkfbk3peksxds7bvc@lguk43z3bsyq
This commit is contained in:
Andres Freund
2025-02-11 11:39:20 -05:00
parent 740766d37c
commit 4dd09a1d41
4 changed files with 9 additions and 9 deletions
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4
doc/src/sgml/config.sgml
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@ -2506,8 +2506,8 @@ include_dir 'conf.d'
</para> </para>
</sect2> </sect2>
<sect2 id="runtime-config-resource-async-behavior"> <sect2 id="runtime-config-resource-io">
<title>Asynchronous Behavior</title> <title>I/O</title>
<variablelist> <variablelist>
<varlistentry id="guc-backend-flush-after" xreflabel="backend_flush_after"> <varlistentry id="guc-backend-flush-after" xreflabel="backend_flush_after">

10
src/backend/utils/misc/guc_tables.c
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@ -682,7 +682,7 @@ const char *const config_group_names[] =
[RESOURCES_DISK] = gettext_noop("Resource Usage / Disk"), [RESOURCES_DISK] = gettext_noop("Resource Usage / Disk"),
[RESOURCES_KERNEL] = gettext_noop("Resource Usage / Kernel Resources"), [RESOURCES_KERNEL] = gettext_noop("Resource Usage / Kernel Resources"),
[RESOURCES_BGWRITER] = gettext_noop("Resource Usage / Background Writer"), [RESOURCES_BGWRITER] = gettext_noop("Resource Usage / Background Writer"),
[RESOURCES_ASYNCHRONOUS] = gettext_noop("Resource Usage / Asynchronous Behavior"), [RESOURCES_IO] = gettext_noop("Resource Usage / I/O"),
[RESOURCES_WORKER_PROCESSES] = gettext_noop("Resource Usage / Worker Processes"), [RESOURCES_WORKER_PROCESSES] = gettext_noop("Resource Usage / Worker Processes"),
[WAL_SETTINGS] = gettext_noop("Write-Ahead Log / Settings"), [WAL_SETTINGS] = gettext_noop("Write-Ahead Log / Settings"),
[WAL_CHECKPOINTS] = gettext_noop("Write-Ahead Log / Checkpoints"), [WAL_CHECKPOINTS] = gettext_noop("Write-Ahead Log / Checkpoints"),
@ -3181,7 +3181,7 @@ struct config_int ConfigureNamesInt[] =
{ {
{"effective_io_concurrency", {"effective_io_concurrency",
PGC_USERSET, PGC_USERSET,
RESOURCES_ASYNCHRONOUS, RESOURCES_IO,
gettext_noop("Number of simultaneous requests that can be handled efficiently by the disk subsystem."), gettext_noop("Number of simultaneous requests that can be handled efficiently by the disk subsystem."),
NULL, NULL,
GUC_EXPLAIN GUC_EXPLAIN
@ -3195,7 +3195,7 @@ struct config_int ConfigureNamesInt[] =
{ {
{"maintenance_io_concurrency", {"maintenance_io_concurrency",
PGC_USERSET, PGC_USERSET,
RESOURCES_ASYNCHRONOUS, RESOURCES_IO,
gettext_noop("A variant of \"effective_io_concurrency\" that is used for maintenance work."), gettext_noop("A variant of \"effective_io_concurrency\" that is used for maintenance work."),
NULL, NULL,
GUC_EXPLAIN GUC_EXPLAIN
@ -3210,7 +3210,7 @@ struct config_int ConfigureNamesInt[] =
{ {
{"io_combine_limit", {"io_combine_limit",
PGC_USERSET, PGC_USERSET,
RESOURCES_ASYNCHRONOUS, RESOURCES_IO,
gettext_noop("Limit on the size of data reads and writes."), gettext_noop("Limit on the size of data reads and writes."),
NULL, NULL,
GUC_UNIT_BLOCKS 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."), gettext_noop("Number of pages after which previously performed writes are flushed to disk."),
NULL, NULL,
GUC_UNIT_BLOCKS GUC_UNIT_BLOCKS

2
src/backend/utils/misc/postgresql.conf.sample
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@ -192,7 +192,7 @@
#bgwriter_lru_multiplier = 2.0 # 0-10.0 multiplier on buffers scanned/round #bgwriter_lru_multiplier = 2.0 # 0-10.0 multiplier on buffers scanned/round
#bgwriter_flush_after = 0 # measured in pages, 0 disables #bgwriter_flush_after = 0 # measured in pages, 0 disables
# - Asynchronous Behavior - # - I/O -
#backend_flush_after = 0 # measured in pages, 0 disables #backend_flush_after = 0 # measured in pages, 0 disables
#effective_io_concurrency = 1 # 1-1000; 0 disables prefetching #effective_io_concurrency = 1 # 1-1000; 0 disables prefetching

2
src/include/utils/guc_tables.h
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@ -64,7 +64,7 @@ enum config_group
RESOURCES_DISK, RESOURCES_DISK,
RESOURCES_KERNEL, RESOURCES_KERNEL,
RESOURCES_BGWRITER, RESOURCES_BGWRITER,
RESOURCES_ASYNCHRONOUS, RESOURCES_IO,
RESOURCES_WORKER_PROCESSES, RESOURCES_WORKER_PROCESSES,
WAL_SETTINGS, WAL_SETTINGS,
WAL_CHECKPOINTS, WAL_CHECKPOINTS,