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