Ejemplo n.º 1
0
unsigned fcse_flush_all_start(void)
{
	if (!cache_is_vivt())
		return 0;

#ifndef CONFIG_ARM_FCSE_PREEMPT_FLUSH
	preempt_disable();
#endif /* CONFIG_ARM_FCSE_PREEMPT_FLUSH */

#if defined(CONFIG_IPIPE)
	clear_ti_thread_flag(current_thread_info(), TIF_SWITCHED);
#elif defined(CONFIG_ARM_FCSE_PREEMPT_FLUSH)
	return nr_context_switches();
#endif /* CONFIG_ARM_FCSE_PREEMPT_FLUSH */

	return 0;
}
Ejemplo n.º 2
0
noinline void
fcse_flush_all_done(unsigned seq, unsigned dirty)
{
	unsigned long flags;

	if (!cache_is_vivt())
		return;

	spin_lock_irqsave(&fcse_lock, flags);
#if defined(CONFIG_IPIPE)
	if (!test_ti_thread_flag(current_thread_info(), TIF_SWITCHED))
#elif defined(CONFIG_ARM_FCSE_PREEMPT_FLUSH)
	if (seq == nr_context_switches())
#endif /* CONFIG_ARM_FCSE_PREEMPT_FLUSH */
		fcse_clear_dirty_all();

	if (dirty && current->mm != &init_mm && current->mm) {
		unsigned fcse_pid =
			current->mm->context.fcse.pid >> FCSE_PID_SHIFT;
		__set_bit(FCSE_PID_MAX - fcse_pid, fcse_pids_cache_dirty);
	}
Ejemplo n.º 3
0
static int show_stat(struct seq_file *p, void *v)
{
	int i, j;
	unsigned long jif;
	u64 user, nice, system, idle, iowait, irq, softirq, steal;
	u64 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 = 0;
	guest = guest_nice = 0;
	getboottime(&boottime);
	jif = boottime.tv_sec;

	for_each_possible_cpu(i) {
		user += kcpustat_cpu(i).cpustat[CPUTIME_USER];
		nice += kcpustat_cpu(i).cpustat[CPUTIME_NICE];
		system += kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
		idle += get_idle_time(i);
		iowait += get_iowait_time(i);
		irq += kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
		softirq += kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
		steal += kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
		guest += kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
		guest_nice += kcpustat_cpu(i).cpustat[CPUTIME_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_puts(p, "cpu ");
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(system));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(idle));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(iowait));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(irq));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(softirq));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(steal));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(guest));
	seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(guest_nice));
	seq_putc(p, '\n');

	for_each_online_cpu(i) {
		/* Copy values here to work around gcc-2.95.3, gcc-2.96 */
		user = kcpustat_cpu(i).cpustat[CPUTIME_USER];
		nice = kcpustat_cpu(i).cpustat[CPUTIME_NICE];
		system = kcpustat_cpu(i).cpustat[CPUTIME_SYSTEM];
		idle = get_idle_time(i);
		iowait = get_iowait_time(i);
		irq = kcpustat_cpu(i).cpustat[CPUTIME_IRQ];
		softirq = kcpustat_cpu(i).cpustat[CPUTIME_SOFTIRQ];
		steal = kcpustat_cpu(i).cpustat[CPUTIME_STEAL];
		guest = kcpustat_cpu(i).cpustat[CPUTIME_GUEST];
		guest_nice = kcpustat_cpu(i).cpustat[CPUTIME_GUEST_NICE];
		seq_printf(p, "cpu%d", i);
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(user));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(nice));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(system));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(idle));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(iowait));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(irq));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(softirq));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(steal));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(guest));
		seq_put_decimal_ull(p, ' ', cputime64_to_clock_t(guest_nice));
		seq_putc(p, '\n');
	}
	seq_printf(p, "intr %llu", (unsigned long long)sum);

	/* sum again ? it could be updated? */
	for_each_irq_nr(j)
		seq_put_decimal_ull(p, ' ', 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;
}
Ejemplo n.º 4
0
void rcu_scheduler_starting(void)
{
	WARN_ON(num_online_cpus() != 1);
	WARN_ON(nr_context_switches() > 0);
	rcu_scheduler_active = 1;
}
Ejemplo n.º 5
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;
}
Ejemplo n.º 6
0
static int kstat_read_proc(char *page, char **start, off_t off,
				 int count, int *eof, void *data)
{
	int i, len = 0;
	extern unsigned long total_forks;
	unsigned long jif = jiffies;
	unsigned int sum = 0, user = 0, nice = 0, system = 0;
	int major, disk;

	for (i = 0 ; i < smp_num_cpus; i++) {
		int cpu = cpu_logical_map(i), j;

		user += kstat.per_cpu_user[cpu];
		nice += kstat.per_cpu_nice[cpu];
		system += kstat.per_cpu_system[cpu];
#if !defined(CONFIG_ARCH_S390)
		for (j = 0 ; j < NR_IRQS ; j++)
			sum += kstat.irqs[cpu][j];
#endif
	}

	proc_sprintf(page, &off, &len,
		      "cpu  %u %u %u %lu\n", user, nice, system,
		      jif * smp_num_cpus - (user + nice + system));
	for (i = 0 ; i < smp_num_cpus; i++)
		proc_sprintf(page, &off, &len,
			"cpu%d %u %u %u %lu\n",
			i,
			kstat.per_cpu_user[cpu_logical_map(i)],
			kstat.per_cpu_nice[cpu_logical_map(i)],
			kstat.per_cpu_system[cpu_logical_map(i)],
			jif - (  kstat.per_cpu_user[cpu_logical_map(i)] \
				   + kstat.per_cpu_nice[cpu_logical_map(i)] \
				   + kstat.per_cpu_system[cpu_logical_map(i)]));
	proc_sprintf(page, &off, &len,
		"page %u %u\n"
		"swap %u %u\n"
		"intr %u",
			kstat.pgpgin >> 1,
			kstat.pgpgout >> 1,
			kstat.pswpin,
			kstat.pswpout,
			sum
	);
#if !defined(CONFIG_ARCH_S390)
	for (i = 0 ; i < NR_IRQS ; i++)
		proc_sprintf(page, &off, &len,
			     " %u", kstat_irqs(i));
#endif

	proc_sprintf(page, &off, &len, "\ndisk_io: ");

	for (major = 0; major < DK_MAX_MAJOR; major++) {
		for (disk = 0; disk < DK_MAX_DISK; disk++) {
			int active = kstat.dk_drive[major][disk] +
				kstat.dk_drive_rblk[major][disk] +
				kstat.dk_drive_wblk[major][disk];
			if (active)
				proc_sprintf(page, &off, &len,
					"(%u,%u):(%u,%u,%u,%u,%u) ",
					major, disk,
					kstat.dk_drive[major][disk],
					kstat.dk_drive_rio[major][disk],
					kstat.dk_drive_rblk[major][disk],
					kstat.dk_drive_wio[major][disk],
					kstat.dk_drive_wblk[major][disk]
			);
		}
	}

	proc_sprintf(page, &off, &len,
		"\nctxt %lu\n"
		"btime %lu\n"
		"processes %lu\n",
		nr_context_switches(),
		xtime.tv_sec - jif / HZ,
		total_forks);

	return proc_calc_metrics(page, start, off, count, eof, len);
}
Ejemplo n.º 7
0
/* The function is NOT SCHEDULE-SAFE! */
struct buffer_head  * reiserfs_bread (struct super_block *super, int n_block, int n_size) 
{
    struct buffer_head  *result;
    PROC_EXP( unsigned int ctx_switches = nr_context_switches(); );
Ejemplo n.º 8
0
static int show_stat(struct seq_file *p, void *v)
{
	int i;
	unsigned long jif;
	cputime64_t user, nice, system, idle, iowait, irq, softirq, steal;
	u64 sum = 0;

	user = nice = system = idle = iowait =
		irq = softirq = steal = cputime64_zero;
	jif = - wall_to_monotonic.tv_sec;
	if (wall_to_monotonic.tv_nsec)
		--jif;

	for_each_cpu(i) {
		int j;

		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);
		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);
		for (j = 0 ; j < NR_IRQS ; j++)
			sum += kstat_cpu(i).irqs[j];
	}

	seq_printf(p, "cpu  %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));
	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;
		iowait = kstat_cpu(i).cpustat.iowait;
		irq = kstat_cpu(i).cpustat.irq;
		softirq = kstat_cpu(i).cpustat.softirq;
		steal = kstat_cpu(i).cpustat.steal;
		seq_printf(p, "cpu%d %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));
	}
	seq_printf(p, "intr %llu", (unsigned long long)sum);

#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA)
	for (i = 0; i < NR_IRQS; i++)
		seq_printf(p, " %u", kstat_irqs(i));
#endif

	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());

	return 0;
}
Ejemplo n.º 9
0
unsigned long DT_Mdep_GetContextSwitchNum(void)
{
	return nr_context_switches();
}