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PG-166: Display actual system time instead of null.

pull/71/head
Ibrar Ahmed 2021-01-18 17:11:49 +00:00
parent 0e8f4c489c
commit 412d9bc9b1
3 changed files with 21 additions and 14 deletions
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4
pg_stat_monitor--1.0.sql
View File

@ -134,8 +134,8 @@ CREATE VIEW pg_stat_monitor AS SELECT
blk_read_time,
blk_write_time,
(string_to_array(resp_calls, ',')) resp_calls,
cpu_user_time,
cpu_sys_time
round(cpu_user_time::numeric, 4) as cpu_user_time,
round(cpu_sys_time::numeric, 4) as cpu_sys_time
FROM pg_stat_monitor(TRUE), pg_database WHERE dbid = oid
ORDER BY bucket_start_time;

26
pg_stat_monitor.c
View File

@ -21,7 +21,7 @@
PG_MODULE_MAGIC;
#define BUILD_VERSION "0.7.0"
#define PG_STAT_STATEMENTS_COLS 41 /* maximum of above */
#define PG_STAT_STATEMENTS_COLS 42 /* maximum of above */
#define PGSM_TEXT_FILE "/tmp/pg_stat_monitor_query"
/*---- Initicalization Function Declarations ----*/
@ -46,6 +46,7 @@ static unsigned char *pgss_qbuf[MAX_BUCKETS];
static bool IsSystemInitialized(void);
static void dump_queries_buffer(int bucket_id, unsigned char *buf, int buf_len);
static double time_diff(struct timeval end, struct timeval start);
/* Saved hook values in case of unload */
static planner_hook_type planner_hook_next = NULL;
@ -314,9 +315,9 @@ pgss_post_parse_analyze(ParseState *pstate, Query *query)
static void
pgss_ExecutorStart(QueryDesc *queryDesc, int eflags)
{
getrusage(RUSAGE_SELF, &rusage_start);
if(getrusage(RUSAGE_SELF, &rusage_start) != 0)
elog(WARNING, "pg_stat_monitor: failed to execute getrusage");
if (prev_ExecutorStart)
prev_ExecutorStart(queryDesc, eflags);
else
@ -410,9 +411,10 @@ pgss_ExecutorEnd(QueryDesc *queryDesc)
* levels of hook all do this.)
*/
InstrEndLoop(queryDesc->totaltime);
getrusage(RUSAGE_SELF, &rusage_end);
utime = TIMEVAL_DIFF(rusage_start.ru_utime, rusage_end.ru_utime);
stime = TIMEVAL_DIFF(rusage_start.ru_stime, rusage_end.ru_stime);
if(getrusage(RUSAGE_SELF, &rusage_end) != 0)
elog(WARNING, "pg_stat_monitor: failed to execute getrusage");
utime = time_diff(rusage_end.ru_utime, rusage_start.ru_utime);
stime = time_diff(rusage_end.ru_stime, rusage_start.ru_stime);
if (PGSM_ENABLED == 1)
pgss_store(queryId,
@ -2622,3 +2624,13 @@ exit:
return buf_len;
}
static double
time_diff(struct timeval end, struct timeval start)
{
double mstart;
double mend;
mend = ((double) end.tv_sec * 1000.0 + (double) end.tv_usec / 1000.0);
mstart = ((double) start.tv_sec * 1000.0 + (double) start.tv_usec / 1000.0);
return mend - mstart;
}

5
pg_stat_monitor.h
View File

@ -54,11 +54,6 @@
#include "utils/guc.h"
#define MAX_BACKEND_PROCESES (MaxBackends + NUM_AUXILIARY_PROCS + max_prepared_xacts)
/* Time difference in miliseconds */
#define TIMEVAL_DIFF(start, end) (((double) end.tv_sec + (double) end.tv_usec / 1000000.0) \
- ((double) start.tv_sec + (double) start.tv_usec / 1000000.0)) * 1000
#define TextArrayGetTextDatum(x,y) textarray_get_datum(x,y)
#define IntArrayGetTextDatum(x,y) intarray_get_datum(x,y)