#include <sys/prctl.h>
#include <math.h>
-static struct perf_counter_attr default_attrs[] = {
+static struct perf_event_attr default_attrs[] = {
{ .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_TASK_CLOCK },
{ .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_CONTEXT_SWITCHES},
static int run_count = 1;
static int inherit = 1;
static int scale = 1;
-static int target_pid = -1;
+static pid_t target_pid = -1;
+static pid_t child_pid = -1;
static int null_run = 0;
static int fd[MAX_NR_CPUS][MAX_COUNTERS];
attrs[counter].config == PERF_COUNT_##c)
#define ERR_PERF_OPEN \
-"Error: counter %d, sys_perf_counter_open() syscall returned with %d (%s)\n"
+"Error: counter %d, sys_perf_event_open() syscall returned with %d (%s)\n"
static void create_perf_stat_counter(int counter, int pid)
{
- struct perf_counter_attr *attr = attrs + counter;
+ struct perf_event_attr *attr = attrs + counter;
if (scale)
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
unsigned int cpu;
for (cpu = 0; cpu < nr_cpus; cpu++) {
- fd[cpu][counter] = sys_perf_counter_open(attr, -1, cpu, -1, 0);
+ fd[cpu][counter] = sys_perf_event_open(attr, -1, cpu, -1, 0);
if (fd[cpu][counter] < 0 && verbose)
fprintf(stderr, ERR_PERF_OPEN, counter,
fd[cpu][counter], strerror(errno));
attr->disabled = 1;
attr->enable_on_exec = 1;
- fd[0][counter] = sys_perf_counter_open(attr, pid, -1, -1, 0);
+ fd[0][counter] = sys_perf_event_open(attr, pid, -1, -1, 0);
if (fd[0][counter] < 0 && verbose)
fprintf(stderr, ERR_PERF_OPEN, counter,
fd[0][counter], strerror(errno));
exit(-1);
}
+ child_pid = pid;
+
/*
* Wait for the child to be ready to exec.
*/
static void abs_printout(int counter, double avg)
{
+ double total, ratio = 0.0;
+
fprintf(stderr, " %14.0f %-24s", avg, event_name(counter));
if (MATCH_EVENT(HARDWARE, HW_INSTRUCTIONS, counter)) {
- fprintf(stderr, " # %10.3f IPC ",
- avg / avg_stats(&runtime_cycles_stats));
+ total = avg_stats(&runtime_cycles_stats);
+
+ if (total)
+ ratio = avg / total;
+
+ fprintf(stderr, " # %10.3f IPC ", ratio);
} else {
- fprintf(stderr, " # %10.3f M/sec",
- 1000.0 * avg / avg_stats(&runtime_nsecs_stats));
+ total = avg_stats(&runtime_nsecs_stats);
+
+ if (total)
+ ratio = 1000.0 * avg / total;
+
+ fprintf(stderr, " # %10.3f M/sec", ratio);
}
}
static void sig_atexit(void)
{
+ if (child_pid != -1)
+ kill(child_pid, SIGTERM);
+
if (signr == -1)
return;