San Mehat | e20e134 | 2009-06-03 15:36:35 -0700 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <fcntl.h> |
| 4 | #include <string.h> |
| 5 | #include <unistd.h> |
Wei Wang | c80018f | 2018-08-29 14:04:30 -0700 | [diff] [blame] | 6 | #include <errno.h> |
San Mehat | e20e134 | 2009-06-03 15:36:35 -0700 | [diff] [blame] | 7 | |
| 8 | int main(int argc, char *argv[]) |
| 9 | { |
| 10 | double this_time, last_time; |
| 11 | char line[256], last_line[256], *p; |
| 12 | int major, minor, cpu, nr, alias; |
Wei Wang | c80018f | 2018-08-29 14:04:30 -0700 | [diff] [blame] | 13 | long MAX_CPUS; |
San Mehat | e20e134 | 2009-06-03 15:36:35 -0700 | [diff] [blame] | 14 | unsigned long long total_entries; |
Wei Wang | c80018f | 2018-08-29 14:04:30 -0700 | [diff] [blame] | 15 | unsigned int *last_seq; |
| 16 | unsigned int seq; |
San Mehat | e20e134 | 2009-06-03 15:36:35 -0700 | [diff] [blame] | 17 | FILE *f; |
| 18 | |
Wei Wang | c80018f | 2018-08-29 14:04:30 -0700 | [diff] [blame] | 19 | #ifdef _SC_NPROCESSORS_ONLN |
| 20 | MAX_CPUS = sysconf(_SC_NPROCESSORS_ONLN); |
| 21 | if (MAX_CPUS < 1) |
| 22 | { |
| 23 | fprintf(stderr, "Could not determine number of CPUs online:\n%s\n", |
| 24 | strerror (errno)); |
| 25 | fprintf(stderr, "Assuming 1024\n"); |
| 26 | MAX_CPUS = 1024; |
| 27 | } |
| 28 | #else |
| 29 | MAX_CPUS = CPU_SETSIZE; |
| 30 | #endif |
| 31 | |
| 32 | last_seq = malloc( sizeof(unsigned int) * MAX_CPUS ); |
San Mehat | e20e134 | 2009-06-03 15:36:35 -0700 | [diff] [blame] | 33 | for (nr = 0; nr < MAX_CPUS; nr++) |
| 34 | last_seq[nr] = -1; |
| 35 | |
| 36 | if (argc < 2) { |
| 37 | fprintf(stderr, "%s: file\n", argv[0]); |
| 38 | return 1; |
| 39 | } |
| 40 | |
| 41 | f = fopen(argv[1], "r"); |
| 42 | if (!f) { |
| 43 | perror("fopen"); |
| 44 | return 1; |
| 45 | } |
| 46 | |
| 47 | last_time = 0; |
| 48 | alias = nr = 0; |
| 49 | total_entries = 0; |
| 50 | while ((p = fgets(line, sizeof(line), f)) != NULL) { |
Wei Wang | c80018f | 2018-08-29 14:04:30 -0700 | [diff] [blame] | 51 | if (sscanf(p, "%3d,%3d %5d %8d %lf", &major, &minor, &cpu, &seq, &this_time) != 5) |
San Mehat | e20e134 | 2009-06-03 15:36:35 -0700 | [diff] [blame] | 52 | break; |
| 53 | |
| 54 | if (this_time < last_time) { |
| 55 | fprintf(stdout, "last: %s", last_line); |
| 56 | fprintf(stdout, "this: %s", p); |
| 57 | nr++; |
| 58 | } |
| 59 | |
| 60 | last_time = this_time; |
| 61 | |
| 62 | if (cpu >= MAX_CPUS) { |
| 63 | fprintf(stderr, "cpu%d too large\n", cpu); |
| 64 | break; |
| 65 | } |
| 66 | |
| 67 | if (last_seq[cpu] == seq) { |
| 68 | fprintf(stdout, "alias on sequence %u\n", seq); |
| 69 | alias++; |
| 70 | } |
| 71 | |
| 72 | last_seq[cpu] = seq; |
| 73 | total_entries++; |
| 74 | strcpy(last_line, line); |
| 75 | } |
| 76 | |
| 77 | fprintf(stdout, "Events %Lu: %d unordered, %d aliases\n", total_entries, nr, alias); |
| 78 | fclose(f); |
| 79 | |
| 80 | return nr != 0; |
| 81 | } |