Allow per-tablespace effective_io_concurrency
Per discussion, nowadays it is possible to have tablespaces that have
wildly different I/O characteristics from others. Setting different
effective_io_concurrency parameters for those has been measured to
improve performance.
Author: Julien Rouhaud
Reviewed by: Andres Freund
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/1aba62ec635f5852bc45ce65482366e541e61ff5
Modified Files
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doc/src/sgml/config.sgml | 5 ++-
doc/src/sgml/ref/create_tablespace.sgml | 17 ++++----
src/backend/access/common/reloptions.c | 16 +++++++-
src/backend/executor/nodeBitmapHeapscan.c | 35 ++++++++++++----
src/backend/storage/buffer/bufmgr.c | 63 ++++++++++++++++++++++++++++-
src/backend/utils/cache/spccache.c | 12 ++++++
src/backend/utils/misc/guc.c | 45 ++-------------------
src/bin/psql/tab-complete.c | 2 +-
src/include/commands/tablespace.h | 1 +
src/include/nodes/execnodes.h | 4 +-
src/include/storage/bufmgr.h | 7 ++++
src/include/utils/spccache.h | 1 +
12 files changed, 145 insertions(+), 63 deletions(-)