[pgpool-committers: 8675] pgpool: Doc: fix memory requirement section.

[Tatsuo Ishii]

Doc: fix memory requirement section.

- enhance the formula to calculate shared memory requirement so that it computes more accurate result.

- fix shared memory requirement for shared rel cache. The old value 64MB was simply wrong.

- fix process memory requirement. Previously the formula was based on
  RSS. However PSS should be used because RSS includes shared memory
  such as the memory used for libraries. This resuls in lot smaller
  memory requirement than before.

Branch
------
V4_2_STABLE

Details
-------
https://git.postgresql.org/gitweb?p=pgpool2.git;a=commitdiff;h=8917f54748c1a13965dea299aa1890dc9b2cd2d6

Modified Files
--------------
doc.ja/src/sgml/performance.sgml | 10 +++++-----
doc/src/sgml/performance.sgml    | 10 +++++-----
2 files changed, 10 insertions(+), 10 deletions(-)