On 26 April 2013 14:38, Peter Zijlstra wrote:
> On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
>
>> +static bool is_buddy_busy(int cpu)
>> +{
>> + struct rq *rq = cpu_rq(cpu);
>> + u32 sum = rq->avg.runnable_avg_sum;
>> + u32 period = rq->avg.runnable_avg_period;
>>
On 26 April 2013 14:30, Peter Zijlstra wrote:
> On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
>> During the creation of sched_domain, we define a pack buddy CPU for each CPU
>> when one is available. We want to pack at all levels where a group of CPUs
>> can
>> be power gated
On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
> +static bool is_buddy_busy(int cpu)
> +{
> + struct rq *rq = cpu_rq(cpu);
> + u32 sum = rq->avg.runnable_avg_sum;
> + u32 period = rq->avg.runnable_avg_period;
> +
> + /*
> + * If a CPU accesses the
On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
> During the creation of sched_domain, we define a pack buddy CPU for each CPU
> when one is available. We want to pack at all levels where a group of CPUs can
> be power gated independently from others.
> On a system that can't
On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
During the creation of sched_domain, we define a pack buddy CPU for each CPU
when one is available. We want to pack at all levels where a group of CPUs can
be power gated independently from others.
On a system that can't power
On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
+static bool is_buddy_busy(int cpu)
+{
+ struct rq *rq = cpu_rq(cpu);
+ u32 sum = rq-avg.runnable_avg_sum;
+ u32 period = rq-avg.runnable_avg_period;
+
+ /*
+ * If a CPU accesses the runnable_avg_sum and
On 26 April 2013 14:30, Peter Zijlstra pet...@infradead.org wrote:
On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
During the creation of sched_domain, we define a pack buddy CPU for each CPU
when one is available. We want to pack at all levels where a group of CPUs
can
be
On 26 April 2013 14:38, Peter Zijlstra pet...@infradead.org wrote:
On Thu, Apr 25, 2013 at 07:23:19PM +0200, Vincent Guittot wrote:
+static bool is_buddy_busy(int cpu)
+{
+ struct rq *rq = cpu_rq(cpu);
+ u32 sum = rq-avg.runnable_avg_sum;
+ u32 period =
During the creation of sched_domain, we define a pack buddy CPU for each CPU
when one is available. We want to pack at all levels where a group of CPUs can
be power gated independently from others.
On a system that can't power gate a group of CPUs independently, the flag is
set at all sched_domain
During the creation of sched_domain, we define a pack buddy CPU for each CPU
when one is available. We want to pack at all levels where a group of CPUs can
be power gated independently from others.
On a system that can't power gate a group of CPUs independently, the flag is
set at all sched_domain
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