pgsql-server/ oc/src/sgml/runtime.sgml rc/back ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@postgresql.org    02/08/11 20:36:12

Modified files:
    doc/src/sgml   : runtime.sgml
    src/backend/utils/init: globals.c
    src/backend/utils/misc: guc.c postgresql.conf.sample
    src/backend/utils/mmgr: aset.c mcxt.c
    src/backend/utils/sort: tuplesort.c tuplestore.c
    src/include/nodes: memnodes.h
    src/include/utils: memutils.h

Log message:
    Change memory-space accounting mechanism in tuplesort.c and tuplestore.c
    to make a reasonable attempt at accounting for palloc overhead, not just
    the requested size of each memory chunk.  Since in many scenarios this
    will make for a significant reduction in the amount of space acquired,
    partially compensate by doubling the default value of SORT_MEM to 1Mb.
    Per discussion in pgsql-general around 9-Jun-2002..