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| author | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-09-08 12:51:42 -0300 |
|---|---|---|
| committer | Alvaro Herrera <alvherre@alvh.no-ip.org> | 2015-09-08 12:51:42 -0300 |
| commit | 1aba62ec635f5852bc45ce65482366e541e61ff5 (patch) | |
| tree | 1161cc00324cb8d229b831a944432646ae1552d5 /src/include/commands/tablespace.h | |
| parent | 665a00c9e2598e3be366cb9f99c0a04a51dd8c7a (diff) | |
| download | postgresql-1aba62ec635f5852bc45ce65482366e541e61ff5.tar.gz postgresql-1aba62ec635f5852bc45ce65482366e541e61ff5.zip | |
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
Diffstat (limited to 'src/include/commands/tablespace.h')
| -rw-r--r-- | src/include/commands/tablespace.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/commands/tablespace.h b/src/include/commands/tablespace.h index 6b928a58a01..be9582a2035 100644 --- a/src/include/commands/tablespace.h +++ b/src/include/commands/tablespace.h @@ -39,6 +39,7 @@ typedef struct TableSpaceOpts int32 vl_len_; /* varlena header (do not touch directly!) */ float8 random_page_cost; float8 seq_page_cost; + int effective_io_concurrency; } TableSpaceOpts; extern Oid CreateTableSpace(CreateTableSpaceStmt *stmt); |