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