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#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include "trace_reader.h"
static const int kMaxHistEntries = 256;
static const int kMaxHistEntries2 = kMaxHistEntries / 2;
int hist[kMaxHistEntries];
int underflow, overflow;
int main(int argc, char **argv) {
if (argc != 2) {
fprintf(stderr, "Usage: %s trace_file\n", argv[0]);
exit(1);
}
char *trace_filename = argv[1];
TraceReaderBase *trace = new TraceReaderBase;
trace->Open(trace_filename);
uint64_t prev_bb_num = 0;
uint64_t prev_time = 0;
int total = 0;
while (1) {
BBEvent event;
if (trace->ReadBB(&event))
break;
int bb_diff = event.bb_num - prev_bb_num;
//int time_diff = event.time - prev_time;
//printf("bb_num: %llu prev: %llu, diff: %d\n",
// event.bb_num, prev_bb_num, bb_diff);
prev_bb_num = event.bb_num;
prev_time = event.time;
bb_diff += kMaxHistEntries2;
if (bb_diff < 0)
underflow += 1;
else if (bb_diff >= kMaxHistEntries)
overflow += 1;
else
hist[bb_diff] += 1;
total += 1;
}
int sum = 0;
double sum_per = 0;
double per = 0;
for (int ii = 0; ii < kMaxHistEntries; ++ii) {
if (hist[ii] == 0)
continue;
per = 100.0 * hist[ii] / total;
sum += hist[ii];
sum_per = 100.0 * sum / total;
printf(" %4d: %6d %6.2f %6.2f\n", ii - kMaxHistEntries2, hist[ii], per, sum_per);
}
per = 100.0 * underflow / total;
printf("under: %6d %6.2f\n", underflow, per);
per = 100.0 * overflow / total;
printf("over: %6d %6.2f\n", overflow, per);
printf("total: %6d\n", total);
return 0;
}
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