CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: momjian(at)svr1(dot)postgresql(dot)org 03/06/11 22:42:21
Modified files:
src/backend/storage/ipc: sinval.c
src/backend/utils/time: tqual.c
src/include/utils: tqual.h
Log message:
Up to now, SerializableSnapshot and QuerySnapshot are malloc'ed and
free'd for every transaction or statement, respectively. This patch
puts these data structures into static memory, thus saving a few CPU
cycles and two malloc calls per transaction or (in isolation level
READ COMMITTED) per query.
Manfred Koizar