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#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <inttypes.h>
#include <string.h>
#include "trace_reader.h"
#include "parse_options.h"
typedef TraceReader<> TraceReaderType;
#include "parse_options-inl.h"
// This function is called from quicksort to compare the cpu time
// of processes and sort into decreasing order.
int cmp_dec_cpu_time(const void *a, const void *b) {
ProcessState *proc1, *proc2;
proc1 = (ProcessState*)a;
proc2 = (ProcessState*)b;
if (proc1 == NULL) {
if (proc2 == NULL)
return 0;
return 1;
}
if (proc2 == NULL)
return -1;
if (proc1->cpu_time < proc2->cpu_time)
return 1;
if (proc1->cpu_time > proc2->cpu_time)
return -1;
// If the cpu_time times are the same, then sort into increasing
// order of pid.
return proc1->pid - proc2->pid;
}
void Usage(const char *program)
{
fprintf(stderr, "Usage: %s [options] trace_file\n", program);
OptionsUsage();
}
int main(int argc, char **argv) {
// Parse the options
ParseOptions(argc, argv);
if (argc - optind != 1) {
Usage(argv[0]);
exit(1);
}
char *trace_filename = argv[optind];
TraceReader<> *trace = new TraceReader<>;
trace->Open(trace_filename);
trace->SetRoot(root);
while (1) {
BBEvent event, ignored;
symbol_type *dummy_sym;
if (GetNextValidEvent(trace, &event, &ignored, &dummy_sym))
break;
}
int num_procs;
ProcessState *processes = trace->GetProcesses(&num_procs);
qsort(processes, num_procs, sizeof(ProcessState), cmp_dec_cpu_time);
uint64_t total_time = 0;
for (int ii = 0; ii < num_procs; ++ii) {
total_time += processes[ii].cpu_time;
}
uint64_t sum_time = 0;
printf(" pid parent cpu_time %% %% flags argv\n");
ProcessState *pstate = &processes[0];
for (int ii = 0; ii < num_procs; ++ii, ++pstate) {
sum_time += pstate->cpu_time;
double per = 100.0 * pstate->cpu_time / total_time;
double sum_per = 100.0 * sum_time / total_time;
const char *print_flags = "";
if ((pstate->flags & ProcessState::kCalledExec) == 0)
print_flags = "T";
if (pstate->name == NULL)
pstate->name = "";
printf("%5d %5d %10llu %6.2f %6.2f %5s %s",
pstate->pid, pstate->parent_pid, pstate->cpu_time,
per, sum_per, print_flags, pstate->name);
for (int jj = 1; jj < pstate->argc; ++jj) {
printf(" %s", pstate->argv[jj]);
}
printf("\n");
}
delete trace;
return 0;
}
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