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Track last time for statistics reset on databases and bgwriter

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Tracks one counter for each database, which is reset whenever
the statistics for any individual object inside the database is
reset, and one counter for the background writer.

Tomas Vondra, reviewed by Greg Smith
This commit is contained in:
Magnus Hagander
2011-02-10 15:09:35 +01:00
parent a2e61ec319
commit 4c468b37a2
8 changed files with 79 additions and 9 deletions
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4
src/include/pgstat.h
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@ -484,7 +484,7 @@ typedef union PgStat_Msg
* ------------------------------------------------------------
*/
#define PGSTAT_FILE_FORMAT_ID 0x01A5BC98
#define PGSTAT_FILE_FORMAT_ID 0x01A5BC99
/* ----------
* PgStat_StatDBEntry The collector's data per database
@ -508,6 +508,7 @@ typedef struct PgStat_StatDBEntry
PgStat_Counter n_conflict_snapshot;
PgStat_Counter n_conflict_bufferpin;
PgStat_Counter n_conflict_startup_deadlock;
TimestampTz stat_reset_timestamp;
/*
@ -584,6 +585,7 @@ typedef struct PgStat_GlobalStats
PgStat_Counter buf_written_backend;
PgStat_Counter buf_fsync_backend;
PgStat_Counter buf_alloc;
TimestampTz stat_reset_timestamp;
} PgStat_GlobalStats;