diff options
| author | Ruchi Kandoi <kandoiruchi@google.com> | 2015-04-17 16:52:54 -0700 |
|---|---|---|
| committer | Ruchi Kandoi <kandoiruchi@google.com> | 2015-06-08 11:06:57 -0700 |
| commit | 4b254ff54bf9dc95597c0a6b1845db42c81735af (patch) | |
| tree | 96d46347e540984200bf2f38c2838cbdfebce85c | |
| parent | 141aa174ac26c18a640d040dbdb45770013e8977 (diff) | |
uid_cputime: Extends the cputime functionality to report power per uid
/proc/uid_cputime/show_uid_stats shows a third field power for each of
the uids. It represents the power in the units (uAusec)
Change-Id: I52fdc5e59647e9dc97561a26d56f462a2689ba9c
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
| -rw-r--r-- | drivers/misc/uid_cputime.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/misc/uid_cputime.c b/drivers/misc/uid_cputime.c index c3f5bda9241d..89bfba6c5b6a 100644 --- a/drivers/misc/uid_cputime.c +++ b/drivers/misc/uid_cputime.c @@ -38,6 +38,8 @@ struct uid_entry { cputime_t stime; cputime_t active_utime; cputime_t active_stime; + unsigned long long active_power; + unsigned long long power; struct hlist_node hash; }; @@ -83,6 +85,7 @@ static int uid_stat_show(struct seq_file *m, void *v) hash_for_each(hash_table, bkt, uid_entry, hash) { uid_entry->active_stime = 0; uid_entry->active_utime = 0; + uid_entry->active_power = 0; } read_lock(&tasklist_lock); @@ -100,6 +103,7 @@ static int uid_stat_show(struct seq_file *m, void *v) task_cputime_adjusted(task, &utime, &stime); uid_entry->active_utime += utime; uid_entry->active_stime += stime; + uid_entry->active_power += task->cpu_power; } read_unlock(&tasklist_lock); @@ -108,9 +112,12 @@ static int uid_stat_show(struct seq_file *m, void *v) uid_entry->active_utime; cputime_t total_stime = uid_entry->stime + uid_entry->active_stime; - seq_printf(m, "%d: %u %u\n", uid_entry->uid, + unsigned long long total_power = uid_entry->power + + uid_entry->active_power; + seq_printf(m, "%d: %u %u %llu\n", uid_entry->uid, cputime_to_usecs(total_utime), - cputime_to_usecs(total_stime)); + cputime_to_usecs(total_stime), + total_power); } mutex_unlock(&uid_lock); @@ -203,6 +210,7 @@ static int process_notifier(struct notifier_block *self, task_cputime_adjusted(task, &utime, &stime); uid_entry->utime += utime; uid_entry->stime += stime; + uid_entry->power += task->cpu_power; exit: mutex_unlock(&uid_lock); |