#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
+#include <string.h>
#include <unistd.h>
+#include <errno.h>
int main(int argc, char *argv[])
{
double this_time, last_time;
- char line[256], *p;
- int major, minor, cpu, seq, nr, alias, last_seq;
+ char line[256], last_line[256], *p;
+ int major, minor, cpu, nr, alias;
+ long MAX_CPUS;
+ unsigned long long total_entries;
+ unsigned int *last_seq;
+ unsigned int seq;
FILE *f;
+#ifdef _SC_NPROCESSORS_ONLN
+ MAX_CPUS = sysconf(_SC_NPROCESSORS_ONLN);
+ if (MAX_CPUS < 1)
+ {
+ fprintf(stderr, "Could not determine number of CPUs online:\n%s\n",
+ strerror (errno));
+ fprintf(stderr, "Assuming 1024\n");
+ MAX_CPUS = 1024;
+ }
+#else
+ MAX_CPUS = CPU_SETSIZE;
+#endif
+
+ last_seq = malloc( sizeof(unsigned int) * MAX_CPUS );
+ for (nr = 0; nr < MAX_CPUS; nr++)
+ last_seq[nr] = -1;
+
if (argc < 2) {
fprintf(stderr, "%s: file\n", argv[0]);
return 1;
}
last_time = 0;
- last_seq = alias = nr = 0;
+ alias = nr = 0;
+ total_entries = 0;
while ((p = fgets(line, sizeof(line), f)) != NULL) {
- if (sscanf(p, "%3d,%3d %2d %8d %lf", &major, &minor, &cpu, &seq, &this_time) == -1)
+ if (sscanf(p, "%3d,%3d %5d %8d %lf", &major, &minor, &cpu, &seq, &this_time) != 5)
break;
if (this_time < last_time) {
- fprintf(stdout, "%s", p);
+ fprintf(stdout, "last: %s", last_line);
+ fprintf(stdout, "this: %s", p);
nr++;
- } else
- last_time = this_time;
+ }
+
+ last_time = this_time;
+
+ if (cpu >= MAX_CPUS) {
+ fprintf(stderr, "cpu%d too large\n", cpu);
+ break;
+ }
- if (last_seq == seq) {
+ if (last_seq[cpu] == seq) {
fprintf(stdout, "alias on sequence %u\n", seq);
alias++;
}
- last_seq = seq;
+ last_seq[cpu] = seq;
+ total_entries++;
+ strcpy(last_line, line);
}
- fprintf(stdout, "%d unordered events, %d aliases\n", nr, alias);
+ fprintf(stdout, "Events %Lu: %d unordered, %d aliases\n", total_entries, nr, alias);
fclose(f);
return nr != 0;