diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/delayacct.c | 6 | ||||
| -rw-r--r-- | kernel/fork.c | 2 | ||||
| -rw-r--r-- | kernel/sched.c | 21 | ||||
| -rw-r--r-- | kernel/timer.c | 7 | ||||
| -rw-r--r-- | kernel/tsacct.c | 4 |
5 files changed, 38 insertions, 2 deletions
diff --git a/kernel/delayacct.c b/kernel/delayacct.c index 09e9574eeb2..10e43fd8b72 100644 --- a/kernel/delayacct.c +++ b/kernel/delayacct.c @@ -115,6 +115,12 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk) tmp += timespec_to_ns(&ts); d->cpu_run_real_total = (tmp < (s64)d->cpu_run_real_total) ? 0 : tmp; + tmp = (s64)d->cpu_scaled_run_real_total; + cputime_to_timespec(tsk->utimescaled + tsk->stimescaled, &ts); + tmp += timespec_to_ns(&ts); + d->cpu_scaled_run_real_total = + (tmp < (s64)d->cpu_scaled_run_real_total) ? 0 : tmp; + /* * No locking available for sched_info (and too expensive to add one) * Mitigate by taking snapshot of values diff --git a/kernel/fork.c b/kernel/fork.c index 1232aac6a1c..2ce28f165e3 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1059,6 +1059,8 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->utime = cputime_zero; p->stime = cputime_zero; p->gtime = cputime_zero; + p->utimescaled = cputime_zero; + p->stimescaled = cputime_zero; #ifdef CONFIG_TASK_XACCT p->rchar = 0; /* I/O counter: bytes read */ diff --git a/kernel/sched.c b/kernel/sched.c index 92721d1534b..12534421d7b 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -3334,6 +3334,16 @@ void account_guest_time(struct task_struct *p, cputime_t cputime) } /* + * Account scaled user cpu time to a process. + * @p: the process that the cpu time gets accounted to + * @cputime: the cpu time spent in user space since the last update + */ +void account_user_time_scaled(struct task_struct *p, cputime_t cputime) +{ + p->utimescaled = cputime_add(p->utimescaled, cputime); +} + +/* * Account system cpu time to a process. * @p: the process that the cpu time gets accounted to * @hardirq_offset: the offset to subtract from hardirq_count() @@ -3371,6 +3381,17 @@ void account_system_time(struct task_struct *p, int hardirq_offset, } /* + * Account scaled system cpu time to a process. + * @p: the process that the cpu time gets accounted to + * @hardirq_offset: the offset to subtract from hardirq_count() + * @cputime: the cpu time spent in kernel space since the last update + */ +void account_system_time_scaled(struct task_struct *p, cputime_t cputime) +{ + p->stimescaled = cputime_add(p->stimescaled, cputime); +} + +/* * Account for involuntary wait time. * @p: the process from which the cpu time has been stolen * @steal: the cpu time spent in involuntary wait diff --git a/kernel/timer.c b/kernel/timer.c index 0735f0aa3af..8521d10fbb2 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -826,10 +826,13 @@ void update_process_times(int user_tick) int cpu = smp_processor_id(); /* Note: this timer irq context must be accounted for as well. */ - if (user_tick) + if (user_tick) { account_user_time(p, jiffies_to_cputime(1)); - else + account_user_time_scaled(p, jiffies_to_cputime(1)); + } else { account_system_time(p, HARDIRQ_OFFSET, jiffies_to_cputime(1)); + account_system_time_scaled(p, jiffies_to_cputime(1)); + } run_local_timers(); if (rcu_pending(cpu)) rcu_check_callbacks(cpu, user_tick); diff --git a/kernel/tsacct.c b/kernel/tsacct.c index c122131a122..4ab1b584961 100644 --- a/kernel/tsacct.c +++ b/kernel/tsacct.c @@ -62,6 +62,10 @@ void bacct_add_tsk(struct taskstats *stats, struct task_struct *tsk) rcu_read_unlock(); stats->ac_utime = cputime_to_msecs(tsk->utime) * USEC_PER_MSEC; stats->ac_stime = cputime_to_msecs(tsk->stime) * USEC_PER_MSEC; + stats->ac_utimescaled = + cputime_to_msecs(tsk->utimescaled) * USEC_PER_MSEC; + stats->ac_stimescaled = + cputime_to_msecs(tsk->stimescaled) * USEC_PER_MSEC; stats->ac_minflt = tsk->min_flt; stats->ac_majflt = tsk->maj_flt; |