1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <inttypes.h>
4 #include "trace_reader.h"
5
6 static const int kMaxHistEntries = 256;
7 static const int kMaxHistEntries2 = kMaxHistEntries / 2;
8 int hist[kMaxHistEntries];
9 int underflow, overflow;
10
main(int argc,char ** argv)11 int main(int argc, char **argv) {
12 if (argc != 2) {
13 fprintf(stderr, "Usage: %s trace_file\n", argv[0]);
14 exit(1);
15 }
16
17 char *trace_filename = argv[1];
18 TraceReaderBase *trace = new TraceReaderBase;
19 trace->Open(trace_filename);
20
21 uint64_t prev_bb_num = 0;
22 uint64_t prev_time = 0;
23 int total = 0;
24
25 while (1) {
26 BBEvent event;
27
28 if (trace->ReadBB(&event))
29 break;
30 int bb_diff = event.bb_num - prev_bb_num;
31 //int time_diff = event.time - prev_time;
32 //printf("bb_num: %llu prev: %llu, diff: %d\n",
33 // event.bb_num, prev_bb_num, bb_diff);
34 prev_bb_num = event.bb_num;
35 prev_time = event.time;
36
37 bb_diff += kMaxHistEntries2;
38 if (bb_diff < 0)
39 underflow += 1;
40 else if (bb_diff >= kMaxHistEntries)
41 overflow += 1;
42 else
43 hist[bb_diff] += 1;
44 total += 1;
45 }
46
47 int sum = 0;
48 double sum_per = 0;
49 double per = 0;
50 for (int ii = 0; ii < kMaxHistEntries; ++ii) {
51 if (hist[ii] == 0)
52 continue;
53 per = 100.0 * hist[ii] / total;
54 sum += hist[ii];
55 sum_per = 100.0 * sum / total;
56 printf(" %4d: %6d %6.2f %6.2f\n", ii - kMaxHistEntries2, hist[ii], per, sum_per);
57 }
58 per = 100.0 * underflow / total;
59 printf("under: %6d %6.2f\n", underflow, per);
60 per = 100.0 * overflow / total;
61 printf("over: %6d %6.2f\n", overflow, per);
62 printf("total: %6d\n", total);
63 return 0;
64 }
65