diff options
| author | Robert Haas <rhaas@postgresql.org> | 2012-04-05 11:37:31 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2012-04-05 11:40:24 -0400 |
| commit | 644828908fb132ee1f1da5b8b7975c0d73d6158a (patch) | |
| tree | cb90eb1d3f1953919b757d16c06ef447463dbdd3 /src/include/pgstat.h | |
| parent | 05dbd4a7734e09bd1f835f4197d9befa1c00c4f3 (diff) | |
Expose track_iotiming data via the statistics collector.
Ants Aasma's original patch to add timing information for buffer I/O
requests exposed this data at the relation level, which was judged too
costly. I've here exposed it at the database level instead.
Diffstat (limited to 'src/include/pgstat.h')
| -rw-r--r-- | src/include/pgstat.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/include/pgstat.h b/src/include/pgstat.h index 1281bd8b69f..b3618f28d01 100644 --- a/src/include/pgstat.h +++ b/src/include/pgstat.h @@ -233,6 +233,8 @@ typedef struct PgStat_MsgTabstat int m_nentries; int m_xact_commit; int m_xact_rollback; + PgStat_Counter m_block_time_read; + PgStat_Counter m_block_time_write; PgStat_TableEntry m_entry[PGSTAT_NUM_TABENTRIES]; } PgStat_MsgTabstat; @@ -536,6 +538,8 @@ typedef struct PgStat_StatDBEntry PgStat_Counter n_temp_files; PgStat_Counter n_temp_bytes; PgStat_Counter n_deadlocks; + PgStat_Counter n_block_time_read; /* times in microseconds */ + PgStat_Counter n_block_time_write; TimestampTz stat_reset_timestamp; @@ -721,6 +725,12 @@ extern char *pgstat_stat_filename; */ extern PgStat_MsgBgWriter BgWriterStats; +/* + * Updated by pgstat_count_time_* macros. + */ +extern PgStat_Counter pgStatBlockTimeRead; +extern PgStat_Counter pgStatBlockTimeWrite; + /* ---------- * Functions called from postmaster * ---------- @@ -816,6 +826,10 @@ extern void pgstat_initstats(Relation rel); if ((rel)->pgstat_info != NULL) \ (rel)->pgstat_info->t_counts.t_blocks_hit++; \ } while (0) +#define pgstat_count_buffer_read_time(n) \ + pgStatBlockTimeRead += (n); +#define pgstat_count_buffer_write_time(n) \ + pgStatBlockTimeWrite += (n); extern void pgstat_count_heap_insert(Relation rel, int n); extern void pgstat_count_heap_update(Relation rel, bool hot); |