int main(int argc, char *argv[])
{
FILE *fd = NULL;
Tstate prev_state;
char filename[256];
time_t rstart, rend, tnow;
struct tm tm;
char tag[32] = "default";
char *home = getenv("HOME");
// check for explicit tag name
if (argc > 2 && argv[1][1] == 't') {
strncpy(tag, argv[2], sizeof(tag));
argc -= 2;
argv += 2;
}
if (argc < 2) {
printf("usage: %s", usage);
exit(EXIT_SUCCESS);
}
snprintf(filename, sizeof(filename), "%s/.wtimed/%s", home, tag);
if ((fd = fopen(filename, "r+")) == NULL) {
if ((fd = fopen(filename, "w+")) == NULL) {
fprintf(stderr, "Error while opening data file '%s'.\n", filename);
exit(EXIT_FAILURE);
}
}
if (argv[1][0] != '-') {
fprintf(stderr, "Unknown parameter: %s\n", argv[1]);
} else {
if ((prev_state = cur_state(fd)) == UNKNOWN) {
fprintf(stderr, "Corrupted data file '%s'.\n", filename);
exit(EXIT_FAILURE);
}
switch (argv[1][1]) {
case 'h':
printf("usage: %s", usage);
break;
case 'a':
if (prev_state == STARTED)
fprintf(stderr, "We are allready counting.\n");
else
start_counting(fd);
break;
case 's':
if (prev_state != STARTED)
fprintf(stderr, "We are not counting.\n");
else
stop_counting(fd);
break;
case 'r':
if (argc == 4) { // end
if (strptime(argv[3], "%d-%m-%Y", &tm) == NULL) {
fprintf(stderr, "Malformated end date\n");
exit(EXIT_FAILURE);
}
tm.tm_min = tm.tm_sec = 59;
tm.tm_hour = 23;
rend = mktime(&tm);
} else {
rend = time(NULL);
}
if (argc >= 3) { // start
if (strptime(argv[2], "%d-%m-%Y", &tm) == NULL) {
fprintf(stderr, "Malformated start date\n");
exit(EXIT_FAILURE);
}
tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
rstart = mktime(&tm);
} else { // beginning of month
tnow = time(NULL);
tm = *localtime(&tnow);
tm.tm_mday = 1;
tm.tm_sec = tm.tm_min = tm.tm_hour = 0;
rstart = mktime(&tm);
}
if (rstart > rend) {
fprintf(stderr, "Start date is further then end date.\n");
exit(EXIT_FAILURE);
}
print_report(fd, rstart, rend);
break;
case 'c':
if (prev_state != STARTED) {
fprintf(stderr, "We are not counting.\n");
exit(EXIT_FAILURE);
} else
print_elapsed(fd);
break;
default:
fprintf(stderr, "Unknown parameter: %s\n", argv[1]);
break;
}
}
if (fd)
fclose(fd);
return (0);
}
int main(int argc, char *argv[]) {
int floatingPoint = 0;
int integer = 0;
int trials = 0;
int arrLength = 0;
int range = 0;
char* endptr;
struct timespec start, stop;
int opt;
while ((opt = getopt( argc, argv, "fin:a:r:")) != -1) {
switch (opt) {
case 'f':
floatingPoint = 1;
break;
case 'i':
integer = 1;
break;
case 'n':
trials = strtol( optarg, &endptr, 10);
break;
case 'a':
arrLength = strtol( optarg, &endptr, 10);
break;
case 'r':
range = strtol( optarg, &endptr, 10);
break;
case '?':
display_usage();
break;
}
}
// printf( "float: %u, int: %u, trials: %u, array length: %u\n", floatingPoint, integer, trials, arrLength);
int k = 0;
int i = 0;
if( integer == 1) {
int a[arrLength];
int b[arrLength];
int c[arrLength];
srand(time(0));
for( i = 0; i < arrLength; i++) {
a[i] = rand() % range;
b[i] = rand() % range;
}
//"Warm-up" to remove initial memory-acces overhead
intAdd( a, b, c, arrLength);
//clock_gettime(CLOCK_REALTIME, &start);
start_counting(ARMV6_EVENT_INSTR_EXEC, ARMV6_EVENT_CPU_CYCLES) ;
//start_counting(ARMV6_EVENT_DTLB_MISS, ARMV6_EVENT_MAIN_TLB_MISS) ;
//start_counting(ARMV6_EVENT_DCACHE_CACCESS, ARMV6_EVENT_DCACHE_MISS) ;
for( k = trials; k > 0; k--) {
intAdd( a, b, c, arrLength);
}
stop_counting() ;
if (create_result_file("output.dat") == 0) {
printf ("Error cannot create file");
exit( EXIT_FAILURE ) ;
}
fprintf(result_file,"Performance Monitor events\n") ;
print_counts(result_file) ;
//clock_gettime(CLOCK_REALTIME, &stop);
double diff = ( stop.tv_sec - start.tv_sec ) + ( stop.tv_nsec - start.tv_nsec ) / 1E9;
printf( "%u, %u, %lf\n", trials, arrLength, diff);
}else if ( floatingPoint == 1) {
double a[arrLength];
double b[arrLength];
double c[arrLength];
srand(time(0));
for( i = 0; i < arrLength; i++) {
a[i] = (double)rand() / (double)(RAND_MAX/range);
b[i] = (double)rand() / (double)(RAND_MAX/range);
}
/*"Warm-up" to remove initial memory-acces overhead
fpAdd( a, b, c, arrLength);
clock_gettime(CLOCK_REALTIME, &start);
for( k = trials; k > 0; k--) {
fpAdd( a, b, c, arrLength);
}
clock_gettime(CLOCK_REALTIME, &stop);
*/
double diff = ( stop.tv_sec - start.tv_sec ) + ( stop.tv_nsec - start.tv_nsec ) / 1E9;
printf( "%u, %u, %lf\n", trials, arrLength, diff);
}
return 0;
}