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-rw-r--r--kernel/rcutorture.c42
1 files changed, 37 insertions, 5 deletions
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 53c548c..2736cc8 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -177,8 +177,14 @@ static long n_rcu_torture_boosts;
static long n_rcu_torture_timers;
static long n_offline_attempts;
static long n_offline_successes;
+static unsigned long sum_offline;
+static int min_offline = -1;
+static int max_offline;
static long n_online_attempts;
static long n_online_successes;
+static unsigned long sum_online;
+static int min_online = -1;
+static int max_online;
static long n_barrier_attempts;
static long n_barrier_successes;
static struct list_head rcu_torture_removed;
@@ -1215,11 +1221,13 @@ rcu_torture_printk(char *page)
n_rcu_torture_boost_failure,
n_rcu_torture_boosts,
n_rcu_torture_timers);
- cnt += sprintf(&page[cnt], "onoff: %ld/%ld:%ld/%ld ",
- n_online_successes,
- n_online_attempts,
- n_offline_successes,
- n_offline_attempts);
+ cnt += sprintf(&page[cnt],
+ "onoff: %ld/%ld:%ld/%ld %d,%d:%d,%d %lu:%lu (HZ=%d) ",
+ n_online_successes, n_online_attempts,
+ n_offline_successes, n_offline_attempts,
+ min_online, max_online,
+ min_offline, max_offline,
+ sum_online, sum_offline, HZ);
cnt += sprintf(&page[cnt], "barrier: %ld/%ld:%ld",
n_barrier_successes,
n_barrier_attempts,
@@ -1491,8 +1499,10 @@ static int __cpuinit
rcu_torture_onoff(void *arg)
{
int cpu;
+ unsigned long delta;
int maxcpu = -1;
DEFINE_RCU_RANDOM(rand);
+ unsigned long starttime;
VERBOSE_PRINTK_STRING("rcu_torture_onoff task started");
for_each_online_cpu(cpu)
@@ -1510,6 +1520,7 @@ rcu_torture_onoff(void *arg)
printk(KERN_ALERT "%s" TORTURE_FLAG
"rcu_torture_onoff task: offlining %d\n",
torture_type, cpu);
+ starttime = jiffies;
n_offline_attempts++;
if (cpu_down(cpu) == 0) {
if (verbose)
@@ -1517,12 +1528,23 @@ rcu_torture_onoff(void *arg)
"rcu_torture_onoff task: offlined %d\n",
torture_type, cpu);
n_offline_successes++;
+ delta = jiffies - starttime;
+ sum_offline += delta;
+ if (min_offline < 0) {
+ min_offline = delta;
+ max_offline = delta;
+ }
+ if (min_offline > delta)
+ min_offline = delta;
+ if (max_offline < delta)
+ max_offline = delta;
}
} else if (cpu_is_hotpluggable(cpu)) {
if (verbose)
printk(KERN_ALERT "%s" TORTURE_FLAG
"rcu_torture_onoff task: onlining %d\n",
torture_type, cpu);
+ starttime = jiffies;
n_online_attempts++;
if (cpu_up(cpu) == 0) {
if (verbose)
@@ -1530,6 +1552,16 @@ rcu_torture_onoff(void *arg)
"rcu_torture_onoff task: onlined %d\n",
torture_type, cpu);
n_online_successes++;
+ delta = jiffies - starttime;
+ sum_online += delta;
+ if (min_online < 0) {
+ min_online = delta;
+ max_online = delta;
+ }
+ if (min_online > delta)
+ min_online = delta;
+ if (max_online < delta)
+ max_online = delta;
}
}
schedule_timeout_interruptible(onoff_interval * HZ);
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