Exemple #1
0
static u64 get_idle_time(int cpu)
{
	u64 idle;

	idle = kcpustat_cpu(cpu).cpustat[CPUTIME_IDLE];
	if (cpu_online(cpu) && !nr_iowait_cpu(cpu))
		idle += arch_idle_time(cpu);
	return idle;
}
Exemple #2
0
static cputime64_t get_iowait_time(int cpu)
{
	cputime64_t iowait;

	iowait = kcpustat_cpu(cpu).cpustat[CPUTIME_IOWAIT];
	if (cpu_online(cpu) && nr_iowait_cpu(cpu))
		iowait += arch_idle_time(cpu);
	return iowait;
}
Exemple #3
0
static cputime64_t get_idle_time(int cpu)
{
	u64 idle_time = get_cpu_idle_time_us(cpu, NULL);
	cputime64_t idle;

	if (idle_time == -1ULL) {
		/* !NO_HZ so we can rely on cpustat.idle */
		idle = kstat_cpu(cpu).cpustat.idle;
		idle = cputime64_add(idle, arch_idle_time(cpu));
	} else
		idle = usecs_to_cputime64(idle_time);

	return idle;
}
Exemple #4
0
/* Sync fs/proc/stat.c to caculate all cpu statistics */
static void get_all_cpu_stat(struct cpu_usage_stat *cpu_stat)
{
	int i;
	cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
	cputime64_t guest, guest_nice;

	if (!cpu_stat)
		return;

	user = nice = system = idle = iowait =
		irq = softirq = steal = cputime64_zero;
	guest = guest_nice = cputime64_zero;

	for_each_possible_cpu(i) {
		user = cputime64_add(user, kstat_cpu(i).cpustat.user);
		nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
		system = cputime64_add(system, kstat_cpu(i).cpustat.system);
		idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
		idle = cputime64_add(idle, arch_idle_time(i));
		iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
		irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
		softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
		steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
		guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
		guest_nice = cputime64_add(guest_nice,
			kstat_cpu(i).cpustat.guest_nice);
	}
	cpu_stat->user = user;
	cpu_stat->nice = nice;
	cpu_stat->system = system;
	cpu_stat->softirq = softirq;
	cpu_stat->irq = irq;
	cpu_stat->idle = idle;
	cpu_stat->iowait = iowait;
	cpu_stat->steal = steal;
	cpu_stat->guest = guest;
	cpu_stat->guest_nice = guest_nice;
}
/* Sync fs/proc/stat.c to caculate all cpu statistics */
static void get_all_cpu_stat(struct cpu_usage_stat *cpu_stat)
{
	int i;
	cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
	cputime64_t guest, guest_nice;

	if (!cpu_stat)
		return;

	user = nice = system = idle = iowait =
		irq = softirq = steal = 0;
	guest = guest_nice = 0;

	for_each_possible_cpu(i) {
		user += kstat_cpu(i).cpustat.user;
		nice += kstat_cpu(i).cpustat.nice;
		system += kstat_cpu(i).cpustat.system;
		idle += kstat_cpu(i).cpustat.idle;
		idle += arch_idle_time(i);
		iowait += kstat_cpu(i).cpustat.iowait;
		irq += kstat_cpu(i).cpustat.irq;
		softirq += kstat_cpu(i).cpustat.softirq;
		steal += kstat_cpu(i).cpustat.steal;
		guest += kstat_cpu(i).cpustat.guest;
		guest_nice += kstat_cpu(i).cpustat.guest_nice;
	}
	cpu_stat->user = user;
	cpu_stat->nice = nice;
	cpu_stat->system = system;
	cpu_stat->softirq = softirq;
	cpu_stat->irq = irq;
	cpu_stat->idle = idle;
	cpu_stat->iowait = iowait;
	cpu_stat->steal = steal;
	cpu_stat->guest = guest;
	cpu_stat->guest_nice = guest_nice;
}
Exemple #6
0
static int show_stat(struct seq_file *p, void *v)
{
	int i, j;
	unsigned long jif;
	cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
	cputime64_t guest, guest_nice;
	u64 sum = 0;
	u64 sum_softirq = 0;
	unsigned int per_softirq_sums[NR_SOFTIRQS] = {0};
	struct timespec boottime;

	user = nice = system = idle = iowait =
		irq = softirq = steal = cputime64_zero;
	guest = guest_nice = cputime64_zero;
	getboottime(&boottime);
	jif = boottime.tv_sec;

	for_each_possible_cpu(i) {
		user = cputime64_add(user, kstat_cpu(i).cpustat.user);
		nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
		system = cputime64_add(system, kstat_cpu(i).cpustat.system);
		idle = cputime64_add(idle, kstat_cpu(i).cpustat.idle);
		idle = cputime64_add(idle, arch_idle_time(i));
		iowait = cputime64_add(iowait, kstat_cpu(i).cpustat.iowait);
		irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
		softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
		steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
		guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
 		guest_nice = cputime64_add(guest_nice,
 			kstat_cpu(i).cpustat.guest_nice);
		sum += kstat_cpu_irqs_sum(i);
		sum += arch_irq_stat_cpu(i);

		for (j = 0; j < NR_SOFTIRQS; j++) {
			unsigned int softirq_stat = kstat_softirqs_cpu(j, i);

			per_softirq_sums[j] += softirq_stat;
			sum_softirq += softirq_stat;
		}
	}
	sum += arch_irq_stat();

	seq_printf(p, "cpu  %llu %llu %llu %llu %llu %llu %llu %llu %llu"
	"%llu\n",
		(unsigned long long)cputime64_to_clock_t(user),
		(unsigned long long)cputime64_to_clock_t(nice),
		(unsigned long long)cputime64_to_clock_t(system),
		(unsigned long long)cputime64_to_clock_t(idle),
		(unsigned long long)cputime64_to_clock_t(iowait),
		(unsigned long long)cputime64_to_clock_t(irq),
		(unsigned long long)cputime64_to_clock_t(softirq),
		(unsigned long long)cputime64_to_clock_t(steal),
		(unsigned long long)cputime64_to_clock_t(guest),
		(unsigned long long)cputime64_to_clock_t(guest_nice));
	for_each_online_cpu(i) {

		/* Copy values here to work around gcc-2.95.3, gcc-2.96 */
		user = kstat_cpu(i).cpustat.user;
		nice = kstat_cpu(i).cpustat.nice;
		system = kstat_cpu(i).cpustat.system;
		idle = kstat_cpu(i).cpustat.idle;
		idle = cputime64_add(idle, arch_idle_time(i));
		iowait = kstat_cpu(i).cpustat.iowait;
		irq = kstat_cpu(i).cpustat.irq;
		softirq = kstat_cpu(i).cpustat.softirq;
		steal = kstat_cpu(i).cpustat.steal;
		guest = kstat_cpu(i).cpustat.guest;
		guest_nice = kstat_cpu(i).cpustat.guest_nice;
		seq_printf(p,
			"cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu"
			"%llu\n",
			i,
			(unsigned long long)cputime64_to_clock_t(user),
			(unsigned long long)cputime64_to_clock_t(nice),
			(unsigned long long)cputime64_to_clock_t(system),
			(unsigned long long)cputime64_to_clock_t(idle),
			(unsigned long long)cputime64_to_clock_t(iowait),
			(unsigned long long)cputime64_to_clock_t(irq),
			(unsigned long long)cputime64_to_clock_t(softirq),
			(unsigned long long)cputime64_to_clock_t(steal),
			(unsigned long long)cputime64_to_clock_t(guest),
			(unsigned long long)cputime64_to_clock_t(guest_nice));
	}
	seq_printf(p, "intr %llu", (unsigned long long)sum);

	/* sum again ? it could be updated? */
	for_each_irq_nr(j)
		seq_printf(p, " %u", kstat_irqs(j));

	seq_printf(p,
		"\nctxt %llu\n"
		"btime %lu\n"
		"processes %lu\n"
		"procs_running %lu\n"
		"procs_blocked %lu\n",
		nr_context_switches(),
		(unsigned long)jif,
		total_forks,
		nr_running(),
		nr_iowait());

	seq_printf(p, "softirq %llu", (unsigned long long)sum_softirq);

	for (i = 0; i < NR_SOFTIRQS; i++)
		seq_put_decimal_ull(p, ' ', per_softirq_sums[i]);
	seq_putc(p, '\n');

	return 0;
}