Avoid SnapshotResetXmin() during AtEOXact_Snapshot() For normal commits and aborts we already reset PgXact->xmin Avoiding touching highly contented shmem improves concurrent performance.
Simon Riggs Discussion: canp8+jjdxe9b+b9f8cqt-luxxo0pbcb-szffmvadp+akqo4...@mail.gmail.com Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/42b4b0b2413b9b472aaf2112a3bbfd80a6ab4dc5 Modified Files -------------- src/backend/access/transam/xact.c | 6 +++--- src/backend/utils/time/snapmgr.c | 21 ++++++++++++++++++--- src/include/utils/snapmgr.h | 2 +- 3 files changed, 22 insertions(+), 7 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
