tools/OAD_support/timeRatio.c

#include <sys/time.h>
#include <stdio.h>

void timeratio_() { 
  /* 
     three invocations produce
     the ratio of the timedifference of 
     the 3rd vs. the 2nd invocation over
     the difference of the 2nd vs. the 1st invocation
  */
  static short stage=0;
#define tvCount 3
  static struct timeval tv_a[tvCount];
  double deltaThis, deltaPrevious;
  if (stage<tvCount) 
    gettimeofday(&(tv_a[stage]),0);
  printf("OAD: TIMING: stamp %u: %lu.%06lu\n",
         stage,
         tv_a[stage].tv_sec,
         tv_a[stage].tv_usec);
  if (stage>0) { 
    printf("OAD: TIMING: delta stamps %u-%u: %lu.%06lu\n",
           stage,
           stage-1,
           (tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?tv_a[stage].tv_sec-tv_a[stage-1].tv_sec-1:tv_a[stage].tv_sec-tv_a[stage-1].tv_sec,
           (tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?1000000-(tv_a[stage-1].tv_usec-tv_a[stage].tv_usec):tv_a[stage].tv_usec-tv_a[stage-1].tv_usec);
  }
  if (stage>1) { 
    printf("OAD: TIMING: delta stamps %u-%u: %lu.%06lu\n",
           stage,
           0,
           (tv_a[stage].tv_usec<tv_a[0].tv_usec)?tv_a[stage].tv_sec-tv_a[0].tv_sec-1:tv_a[stage].tv_sec-tv_a[0].tv_sec,
           (tv_a[stage].tv_usec<tv_a[0].tv_usec)?1000000-(tv_a[0].tv_usec-tv_a[stage].tv_usec):tv_a[stage].tv_usec-tv_a[0].tv_usec);
  }
  if (stage==tvCount-1 && stage>1) { 
    deltaThis=(tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?tv_a[stage].tv_sec-tv_a[stage-1].tv_sec-1:tv_a[stage].tv_sec-tv_a[stage-1].tv_sec;
    deltaThis*=1.0e6;
    deltaThis+=(tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?1000000-(tv_a[stage-1].tv_usec-tv_a[stage].tv_usec):tv_a[stage].tv_usec-tv_a[stage-1].tv_usec;
    deltaPrevious=(tv_a[stage-1].tv_usec<tv_a[stage-2].tv_usec)?tv_a[stage-1].tv_sec-tv_a[stage-2].tv_sec-1:tv_a[stage-1].tv_sec-tv_a[stage-2].tv_sec;
    deltaPrevious*=1.0e6;
    deltaPrevious+=(tv_a[stage-1].tv_usec<tv_a[stage-2].tv_usec)?1000000-(tv_a[stage-2].tv_usec-tv_a[stage-1].tv_usec):tv_a[stage-1].tv_usec-tv_a[stage-2].tv_usec;
    printf("OAD: TIMING: ratio stamps (%u-%u)/(%u-%u): %e/%e=%e\n",
           stage,
           stage-1,
           stage-1,
           stage-2,
           deltaThis,
           deltaPrevious,
           deltaThis/deltaPrevious);
    stage=0;  
  }
  else
    stage++;
}
1	heimbach	1.1	#include <sys/time.h>
2			#include <stdio.h>
3
4			void timeratio_() {
5			/*
6			three invocations produce
7			the ratio of the timedifference of
8			the 3rd vs. the 2nd invocation over
9			the difference of the 2nd vs. the 1st invocation
10			*/
11			static short stage=0;
12			#define tvCount 3
13			static struct timeval tv_a[tvCount];
14			double deltaThis, deltaPrevious;
15			if (stage<tvCount)
16			gettimeofday(&(tv_a[stage]),0);
17			printf("OAD: TIMING: stamp %u: %lu.%06lu\n",
18			stage,
19			tv_a[stage].tv_sec,
20			tv_a[stage].tv_usec);
21			if (stage>0) {
22			printf("OAD: TIMING: delta stamps %u-%u: %lu.%06lu\n",
23			stage,
24			stage-1,
25			(tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?tv_a[stage].tv_sec-tv_a[stage-1].tv_sec-1:tv_a[stage].tv_sec-tv_a[stage-1].tv_sec,
26			(tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?1000000-(tv_a[stage-1].tv_usec-tv_a[stage].tv_usec):tv_a[stage].tv_usec-tv_a[stage-1].tv_usec);
27			}
28			if (stage>1) {
29			printf("OAD: TIMING: delta stamps %u-%u: %lu.%06lu\n",
30			stage,
31			0,
32			(tv_a[stage].tv_usec<tv_a[0].tv_usec)?tv_a[stage].tv_sec-tv_a[0].tv_sec-1:tv_a[stage].tv_sec-tv_a[0].tv_sec,
33			(tv_a[stage].tv_usec<tv_a[0].tv_usec)?1000000-(tv_a[0].tv_usec-tv_a[stage].tv_usec):tv_a[stage].tv_usec-tv_a[0].tv_usec);
34			}
35			if (stage==tvCount-1 && stage>1) {
36			deltaThis=(tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?tv_a[stage].tv_sec-tv_a[stage-1].tv_sec-1:tv_a[stage].tv_sec-tv_a[stage-1].tv_sec;
37			deltaThis*=1.0e6;
38			deltaThis+=(tv_a[stage].tv_usec<tv_a[stage-1].tv_usec)?1000000-(tv_a[stage-1].tv_usec-tv_a[stage].tv_usec):tv_a[stage].tv_usec-tv_a[stage-1].tv_usec;
39			deltaPrevious=(tv_a[stage-1].tv_usec<tv_a[stage-2].tv_usec)?tv_a[stage-1].tv_sec-tv_a[stage-2].tv_sec-1:tv_a[stage-1].tv_sec-tv_a[stage-2].tv_sec;
40			deltaPrevious*=1.0e6;
41			deltaPrevious+=(tv_a[stage-1].tv_usec<tv_a[stage-2].tv_usec)?1000000-(tv_a[stage-2].tv_usec-tv_a[stage-1].tv_usec):tv_a[stage-1].tv_usec-tv_a[stage-2].tv_usec;
42			printf("OAD: TIMING: ratio stamps (%u-%u)/(%u-%u): %e/%e=%e\n",
43			stage,
44			stage-1,
45			stage-1,
46			stage-2,
47			deltaThis,
48			deltaPrevious,
49			deltaThis/deltaPrevious);
50			stage=0;
51			}
52			else
53			stage++;
54			}