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New GUC, track_iotiming, to track I/O timings.
Currently, the only way to see the numbers this gathers is via EXPLAIN (ANALYZE, BUFFERS), but the plan is to add visibility through the stats collector and pg_stat_statements in subsequent patches. Ants Aasma, reviewed by Greg Smith, with some further changes by me.
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- doc/src/sgml/config.sgml 15 additions, 0 deletionsdoc/src/sgml/config.sgml
- src/backend/commands/explain.c 18 additions, 0 deletionssrc/backend/commands/explain.c
- src/backend/executor/instrument.c 2 additions, 0 deletionssrc/backend/executor/instrument.c
- src/backend/storage/buffer/bufmgr.c 24 additions, 0 deletionssrc/backend/storage/buffer/bufmgr.c
- src/backend/utils/misc/guc.c 9 additions, 0 deletionssrc/backend/utils/misc/guc.c
- src/backend/utils/misc/postgresql.conf.sample 1 addition, 0 deletionssrc/backend/utils/misc/postgresql.conf.sample
- src/include/executor/instrument.h 2 additions, 0 deletionssrc/include/executor/instrument.h
- src/include/storage/bufmgr.h 1 addition, 0 deletionssrc/include/storage/bufmgr.h
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