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81 lines
1.6 KiB
81 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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