From 5788e258bb26495fab65ff3aa486268d1c50b123 Mon Sep 17 00:00:00 2001 From: Andres Freund Date: Wed, 15 Jul 2020 15:35:07 -0700 Subject: snapshot scalability: Move PGXACT->vacuumFlags to ProcGlobal->vacuumFlags. Similar to the previous commit this increases the chance that data frequently needed by GetSnapshotData() stays in l2 cache. As we now take care to not unnecessarily write to ProcGlobal->vacuumFlags, there should be very few modifications to the ProcGlobal->vacuumFlags array. Author: Andres Freund Reviewed-By: Robert Haas Reviewed-By: Thomas Munro Reviewed-By: David Rowley Discussion: https://postgr.es/m/20200301083601.ews6hz5dduc3w2se@alap3.anarazel.de --- src/backend/replication/logical/logical.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/backend/replication/logical/logical.c') diff --git a/src/backend/replication/logical/logical.c b/src/backend/replication/logical/logical.c index 57c5b513ccf..0f6af952f93 100644 --- a/src/backend/replication/logical/logical.c +++ b/src/backend/replication/logical/logical.c @@ -181,7 +181,8 @@ StartupDecodingContext(List *output_plugin_options, if (!IsTransactionOrTransactionBlock()) { LWLockAcquire(ProcArrayLock, LW_EXCLUSIVE); - MyPgXact->vacuumFlags |= PROC_IN_LOGICAL_DECODING; + MyProc->vacuumFlags |= PROC_IN_LOGICAL_DECODING; + ProcGlobal->vacuumFlags[MyProc->pgxactoff] = MyProc->vacuumFlags; LWLockRelease(ProcArrayLock); } -- cgit v1.2.3