Tom Lane 6f5c38dcd0 Just-in-time background writing strategy. This code avoids re-scanning ... buffers that cannot possibly need to be cleaned, and estimates how many buffers it should try to clean based on moving averages of recent allocation requests and density of reusable buffers. The patch also adds a couple more columns to pg_stat_bgwriter to help measure the effectiveness of the bgwriter. Greg Smith, building on his own work and ideas from several other people, in particular a much older patch from Itagaki Takahiro.		2007-09-25 20:03:38 +00:00
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backendid.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
block.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
buf_internals.h	Just-in-time background writing strategy. This code avoids re-scanning	2007-09-25 20:03:38 +00:00
buf.h	Make large sequential scans and VACUUMs work in a limited-size "ring" of	2007-05-30 20:12:03 +00:00
buffile.h	Rework temp_tablespaces patch so that temp tablespaces are assigned separately	2007-06-07 19:19:57 +00:00
bufmgr.h	Just-in-time background writing strategy. This code avoids re-scanning	2007-09-25 20:03:38 +00:00
bufpage.h	Improve handling of prune/no-prune decisions by storing a page's oldest	2007-09-21 21:25:42 +00:00
fd.h	Remove FileUnlink(), which wasn't being used anywhere and interacted poorly	2007-07-26 15:15:18 +00:00
freespace.h	Rename DLLIMPORT macro to PGDLLIMPORT to avoid conflict with	2007-07-25 12:22:54 +00:00
ipc.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
item.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
itemid.h	Redefine the lp_flags field of item pointers as having four states, rather	2007-09-12 22:10:26 +00:00
itempos.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
itemptr.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
large_object.h	Add lo_truncate() to backend and libpq for large object truncation.	2007-03-03 19:52:47 +00:00
lmgr.h	Implement lazy XID allocation: transactions that do not modify any database	2007-09-05 18:10:48 +00:00
lock.h	Implement lazy XID allocation: transactions that do not modify any database	2007-09-05 18:10:48 +00:00
lwlock.h	Arrange for large sequential scans to synchronize with each other, so that	2007-06-08 18:23:53 +00:00
off.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
pg_sema.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
pg_shmem.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
pmsignal.h	Restructure autovacuum in two processes: a dummy process, which runs	2007-02-15 23:23:23 +00:00
pos.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
proc.h	Implement lazy XID allocation: transactions that do not modify any database	2007-09-05 18:10:48 +00:00
procarray.h	Replace the former method of determining snapshot xmax --- to wit, calling	2007-09-08 20:31:15 +00:00
relfilenode.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
s_lock.h	Apparently icc doesn't always define __ICC, and it's more correct to	2007-08-05 15:11:40 +00:00
shmem.h	Rename DLLIMPORT macro to PGDLLIMPORT to avoid conflict with	2007-07-25 12:22:54 +00:00
sinval.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
sinvaladt.h	Implement lazy XID allocation: transactions that do not modify any database	2007-09-05 18:10:48 +00:00
smgr.h	Implement lazy XID allocation: transactions that do not modify any database	2007-09-05 18:10:48 +00:00
spin.h	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00