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Add local_blk_{read|write}_time I/O timing statistics for local blocks

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There was no I/O timing statistics for counting read and write timings
on local blocks, contrary to the counterparts for temp and shared
blocks.  This information is available when track_io_timing is enabled.

The output of EXPLAIN is updated to show this information.  An update of
pg_stat_statements is planned next.

Author: Nazir Bilal Yavuz
Reviewed-by: Robert Haas, Melanie Plageman
Discussion: https://postgr.es/m/CAN55FZ19Ss279mZuqGbuUNxka0iPbLgYuOQXqAKewrjNrp27VA@mail.gmail.com
This commit is contained in:
Michael Paquier
2023-10-19 13:39:38 +09:00
parent 13d00729d4
commit 295c36c0c1
6 changed files with 40 additions and 3 deletions
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2
src/include/executor/instrument.h
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@@ -35,6 +35,8 @@ typedef struct BufferUsage
int64 temp_blks_written; /* # of temp blocks written */
instr_time shared_blk_read_time; /* time spent reading shared blocks */
instr_time shared_blk_write_time; /* time spent writing shared blocks */
instr_time local_blk_read_time; /* time spent reading local blocks */
instr_time local_blk_write_time; /* time spent writing local blocks */
instr_time temp_blk_read_time; /* time spent reading temp blocks */
instr_time temp_blk_write_time; /* time spent writing temp blocks */
} BufferUsage;