From 79ccd7cbd5ca44bee0191d12e9e65abf702899e7 Mon Sep 17 00:00:00 2001 From: Robert Haas Date: Mon, 21 Aug 2017 14:43:00 -0400 Subject: pg_prewarm: Add automatic prewarm feature. Periodically while the server is running, and at shutdown, write out a list of blocks in shared buffers. When the server reaches consistency -- unfortunatey, we can't do it before that point without breaking things -- reload those blocks into any still-unused shared buffers. Mithun Cy and Robert Haas, reviewed and tested by Beena Emerson, Amit Kapila, Jim Nasby, and Rafia Sabih. Discussion: http://postgr.es/m/CAD__OugubOs1Vy7kgF6xTjmEqTR4CrGAv8w+ZbaY_+MZeitukw@mail.gmail.com --- src/include/storage/buf_internals.h | 1 + 1 file changed, 1 insertion(+) (limited to 'src/include') diff --git a/src/include/storage/buf_internals.h b/src/include/storage/buf_internals.h index b768b6fc962..300adfcf9e8 100644 --- a/src/include/storage/buf_internals.h +++ b/src/include/storage/buf_internals.h @@ -317,6 +317,7 @@ extern void StrategyNotifyBgWriter(int bgwprocno); extern Size StrategyShmemSize(void); extern void StrategyInitialize(bool init); +extern bool have_free_buffer(void); /* buf_table.c */ extern Size BufTableShmemSize(int size); -- cgit v1.2.3