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 <[email protected]> Reviewed-By: Robert Haas <[email protected]> Reviewed-By: Thomas Munro <[email protected]> Reviewed-By: David Rowley <[email protected]> Discussion: https://postgr.es/m/[email protected] Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/5788e258bb26495fab65ff3aa486268d1c50b123 Modified Files -------------- src/backend/access/transam/twophase.c | 2 +- src/backend/commands/vacuum.c | 5 ++- src/backend/postmaster/autovacuum.c | 6 +-- src/backend/replication/logical/logical.c | 3 +- src/backend/replication/slot.c | 3 +- src/backend/storage/ipc/procarray.c | 66 ++++++++++++++++++++----------- src/backend/storage/lmgr/deadlock.c | 4 +- src/backend/storage/lmgr/proc.c | 16 +++++--- src/include/storage/proc.h | 12 +++++- 9 files changed, 75 insertions(+), 42 deletions(-)
