diff options
| author | Ruchi Kandoi <kandoiruchi@google.com> | 2015-04-17 16:33:29 -0700 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-09-10 16:03:52 +0200 |
| commit | d568ebc24c10a87c465ada70d0009c2f707ef121 (patch) | |
| tree | efc4f6da8217325c5771436735ae189e7d635c6c /kernel/fork.c | |
| parent | bbc4c63b8fa5bb5d5e855a65714d9f57a02ac737 (diff) | |
sched: cpufreq: Adds a field cpu_power in the task_struct
cpu_power has been added to keep track of amount of power each task is
consuming. cpu_power is updated whenever stime and utime are updated for
a task. power is computed by taking into account the frequency at which
the current core was running and the current for cpu actively
running at hat frequency.
Bug: 21498425
Change-Id: Ic535941e7b339aab5cae9081a34049daeb44b248
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 486303367..01650a5dd 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1345,6 +1345,7 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->utime = p->stime = p->gtime = 0; p->utimescaled = p->stimescaled = 0; + p->cpu_power = 0; #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE p->prev_cputime.utime = p->prev_cputime.stime = 0; #endif |