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On Windows, use QueryPerformanceCounter instead of gettimeofday for

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EXPLAIN ANALYZE instrumentation.  Magnus Hagander
This commit is contained in:
Tom Lane
2005-03-20 22:27:52 +00:00
parent 354049c709
commit 9e0dd84596
3 changed files with 72 additions and 30 deletions
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31
src/backend/executor/instrument.c
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@ -7,7 +7,7 @@
* Copyright (c) 2001-2005, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/instrument.c,v 1.9 2005/01/01 05:43:06 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/instrument.c,v 1.10 2005/03/20 22:27:51 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -36,29 +36,30 @@ InstrStartNode(Instrumentation *instr)
if (!instr)
return;
if (instr->starttime.tv_sec != 0 || instr->starttime.tv_usec != 0)
if (!INSTR_TIME_IS_ZERO(instr->starttime))
elog(DEBUG2, "InstrStartNode called twice in a row");
else
gettimeofday(&instr->starttime, NULL);
INSTR_TIME_SET_CURRENT(instr->starttime);
}
/* Exit from a plan node */
void
InstrStopNode(Instrumentation *instr, bool returnedTuple)
{
struct timeval endtime;
instr_time endtime;
if (!instr)
return;
if (instr->starttime.tv_sec == 0 && instr->starttime.tv_usec == 0)
if (INSTR_TIME_IS_ZERO(instr->starttime))
{
elog(DEBUG2, "InstrStopNode without start");
return;
}
gettimeofday(&endtime, NULL);
INSTR_TIME_SET_CURRENT(endtime);
#ifndef WIN32
instr->counter.tv_sec += endtime.tv_sec - instr->starttime.tv_sec;
instr->counter.tv_usec += endtime.tv_usec - instr->starttime.tv_usec;
@ -73,16 +74,17 @@ InstrStopNode(Instrumentation *instr, bool returnedTuple)
instr->counter.tv_usec -= 1000000;
instr->counter.tv_sec++;
}
#else /* WIN32 */
instr->counter.QuadPart += (endtime.QuadPart - instr->starttime.QuadPart);
#endif
instr->starttime.tv_sec = 0;
instr->starttime.tv_usec = 0;
INSTR_TIME_SET_ZERO(instr->starttime);
/* Is this the first tuple of this cycle? */
if (!instr->running)
{
instr->running = true;
instr->firsttuple = (double) instr->counter.tv_sec +
(double) instr->counter.tv_usec / 1000000.0;
instr->firsttuple = INSTR_TIME_GET_DOUBLE(instr->counter);
}
if (returnedTuple)
@ -103,8 +105,7 @@ InstrEndLoop(Instrumentation *instr)
return;
/* Accumulate statistics */
totaltime = (double) instr->counter.tv_sec +
(double) instr->counter.tv_usec / 1000000.0;
totaltime = INSTR_TIME_GET_DOUBLE(instr->counter);
instr->startup += instr->firsttuple;
instr->total += totaltime;
@ -113,10 +114,8 @@ InstrEndLoop(Instrumentation *instr)
/* Reset for next cycle (if any) */
instr->running = false;
instr->starttime.tv_sec = 0;
instr->starttime.tv_usec = 0;
instr->counter.tv_sec = 0;
instr->counter.tv_usec = 0;
INSTR_TIME_SET_ZERO(instr->starttime);
INSTR_TIME_SET_ZERO(instr->counter);
instr->firsttuple = 0;
instr->tuplecount = 0;
}