Simon Riggs 18fb9d8d21 Reduce checkpoints and WAL traffic on low activity database server ...

Previously, we skipped a checkpoint if no WAL had been written since
last checkpoint, though this does not appear in user documentation.
As of now, we skip a checkpoint until we have written at least one
enough WAL to switch the next WAL file. This greatly reduces the
level of activity and number of WAL messages generated by a very
low activity server. This is safe because the purpose of a checkpoint
is to act as a starting place for a recovery, in case of crash.
This patch maintains minimal WAL volume for replay in case of crash,
thus maintaining very low crash recovery time.

2011-11-02 15:26:33 +00:00

..

backend

Reduce checkpoints and WAL traffic on low activity database server

2011-11-02 15:26:33 +00:00

bin

Remove hard-coded "\connect postgres" from pg_dumpall.

2011-10-28 15:50:42 -04:00

include

Refactor xlog.c to create src/backend/postmaster/startup.c

2011-11-02 14:25:01 +00:00

interfaces

Clean up whitespace and indentation in parser and scanner files

2011-11-01 21:51:30 +02:00

makefiles

Fix pgxs.mk to always add --dbname=$(CONTRIB_TESTDB) to REGRESS_OPTS.

2011-08-24 15:16:50 -04:00

pl

Clean up whitespace and indentation in parser and scanner files

2011-11-01 21:51:30 +02:00

port

Fix typo in pg_srand48 (srand48 in older branches).

2011-09-03 16:17:34 -04:00

template

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

test

Clean up whitespace and indentation in parser and scanner files

2011-11-01 21:51:30 +02:00

timezone

Update docs to point to the timezone library's new home at IANA.

2011-10-27 23:09:05 -04:00

tools

Add simple script to check for right recursion in Bison grammars.

2011-10-27 13:50:57 -04:00

tutorial

Stamp copyrights for year 2011.

2011-01-01 13:18:15 -05:00

.gitignore

Convert cvsignore to gitignore, and add .gitignore for build targets.

2010-09-22 12:57:04 +02:00

bcc32.mak

Remove useless whitespace at end of lines

2010-11-23 22:34:55 +02:00

DEVELOPERS

Replace a couple of references to files that no longer exist in the source

2009-05-04 08:08:47 +00:00

Makefile

Fix some oversights in distprep and maintainer-clean targets.

2011-03-10 00:04:05 -05:00

Makefile.global.in

Make distprep and *clean build targets recurse into all subdirectories.

2011-07-03 13:55:12 -04:00

Makefile.shlib

Use single quotes in preference to double quotes for protecting pathnames.

2011-06-15 21:45:23 -04:00

nls-global.mk

Add the possibility to pass --flag arguments to xgettext calls

2011-06-27 00:37:21 +03:00

win32.mak

Remove useless whitespace at end of lines

2010-11-23 22:34:55 +02:00