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authorThomas Munro <tmunro@postgresql.org>2022-07-14 22:52:13 +1200
committerThomas Munro <tmunro@postgresql.org>2022-07-14 23:56:28 +1200
commit7bae3bbf62d63cdd49ae4ca4a851cef0cdbe6ab5 (patch)
tree943579628b9baf14f82a468cf34c55e47d4891d6 /doc/src/sgml
parent712704d3539e5ed6807e0b46fddaaf8ed47c2403 (diff)
Create a distinct wait event for POSIX DSM allocation.
Previously we displayed "DSMFillZeroWrite" while in posix_fallocate(), because we shared the same wait event for "mmap" and "posix" DSM types. Let's introduce a new wait event "DSMAllocate", to be more accurate. Reported-by: Andres Freund <andres@anarazel.de> Discussion: https://postgr.es/m/20220711174518.yldckniicknsxgzl%40awork3.anarazel.de
Diffstat (limited to 'doc/src/sgml')
-rw-r--r--doc/src/sgml/monitoring.sgml5
1 files changed, 5 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 4549c2560e3..f2066e5f0f5 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1297,6 +1297,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry>Waiting for a write during a file copy operation.</entry>
</row>
<row>
+ <entry><literal>DSMAllocate</literal></entry>
+ <entry>Waiting for a dynamic shared memory segment to be
+ allocated.</entry>
+ </row>
+ <row>
<entry><literal>DSMFillZeroWrite</literal></entry>
<entry>Waiting to fill a dynamic shared memory backing file with
zeroes.</entry>