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| #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], 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;
| }
|
| f = fopen(argv[1], "r");
| if (!f) {
| perror("fopen");
| return 1;
| }
|
| last_time = 0;
| alias = nr = 0;
| total_entries = 0;
| while ((p = fgets(line, sizeof(line), f)) != NULL) {
| if (sscanf(p, "%3d,%3d %5d %8d %lf", &major, &minor, &cpu, &seq, &this_time) != 5)
| break;
|
| if (this_time < last_time) {
| fprintf(stdout, "last: %s", last_line);
| fprintf(stdout, "this: %s", p);
| nr++;
| }
|
| last_time = this_time;
|
| if (cpu >= MAX_CPUS) {
| fprintf(stderr, "cpu%d too large\n", cpu);
| break;
| }
|
| if (last_seq[cpu] == seq) {
| fprintf(stdout, "alias on sequence %u\n", seq);
| alias++;
| }
|
| last_seq[cpu] = seq;
| total_entries++;
| strcpy(last_line, line);
| }
|
| fprintf(stdout, "Events %Lu: %d unordered, %d aliases\n", total_entries, nr, alias);
| fclose(f);
|
| return nr != 0;
| }
|
|
