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author	Tom Lane <tgl@sss.pgh.pa.us>
	Mon, 12 Jan 2009 05:10:45 +0000 (05:10 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Mon, 12 Jan 2009 05:10:45 +0000 (05:10 +0000)
commit	b7b8f0b6096d2ab6e4f67980d19e478cf6fab629
tree	b72f9703650b8fb051b516ba369c7cc929309004	tree \| snapshot
parent	1a37056a74e273085c39bb88cba48797695c067e	commit \| diff

Implement prefetching via posix_fadvise() for bitmap index scans. A new
GUC variable effective_io_concurrency controls how many concurrent block
prefetch requests will be issued.

(The best way to handle this for plain index scans is still under debate,
so that part is not applied yet --- tgl)

Greg Stark

15 files changed:

doc/src/sgml/config.sgml		diff \| blob \| blame \| history
src/backend/executor/nodeBitmapHeapscan.c		diff \| blob \| blame \| history
src/backend/storage/buffer/bufmgr.c		diff \| blob \| blame \| history
src/backend/storage/buffer/localbuf.c		diff \| blob \| blame \| history
src/backend/storage/file/fd.c		diff \| blob \| blame \| history
src/backend/storage/smgr/md.c		diff \| blob \| blame \| history
src/backend/storage/smgr/smgr.c		diff \| blob \| blame \| history
src/backend/utils/misc/guc.c		diff \| blob \| blame \| history
src/backend/utils/misc/postgresql.conf.sample		diff \| blob \| blame \| history
src/include/nodes/execnodes.h		diff \| blob \| blame \| history
src/include/pg_config_manual.h		diff \| blob \| blame \| history
src/include/storage/buf_internals.h		diff \| blob \| blame \| history
src/include/storage/bufmgr.h		diff \| blob \| blame \| history
src/include/storage/fd.h		diff \| blob \| blame \| history
src/include/storage/smgr.h		diff \| blob \| blame \| history

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