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

Nice work! From initdb.sh:

for nbuffers in 1000 900 800 700 600 500 400 300 200 100 50
do
TEST_OPT="$PGSQL_OPT -c shared_buffers=$nbuffers -c max_connections=5"
if "$PGPATH"/postgres -boot -x0 $TEST_OPT template1 </dev/null >/dev/null 2>&1
then
break
fi
done

---------------------------------------------------------------------------

Tom Lane wrote:

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl@svr1.postgresql.org 03/07/14 17:00:24

Modified files:
doc/src/sgml : runtime.sgml
src/backend/port: sysv_shmem.c
src/backend/utils/init: postinit.c
src/backend/utils/misc: postgresql.conf.sample
src/bin/initdb : initdb.sh

Log message:
The default values for shared_buffers and max_connections are now 1000
and 100 respectively, if the platform will allow it. initdb selects
values that are not too large to allow the postmaster to start, and
places these values in the installed postgresql.conf file. This allows
us to continue to start up out-of-the-box on platforms with small SHMMAX,
while having somewhat-realistic default settings on platforms with
reasonable SHMMAX. Per recent pghackers discussion.

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