Hi Peter,
On 02/09/2018 04:53 AM, Peter Zijlstra wrote:
this_sd = rcu_dereference(*this_cpu_ptr(&sd_llc));
if (!this_sd)
@@ -6173,8 +6183,15 @@ static int select_idle_cpu(struct task_struct *p, struct
sched_domain *sd, int t
return -1;
On 02/09/2018 11:05 PM, Rohit Jain wrote:
On 02/09/2018 07:46 AM, Dietmar Eggemann wrote:
On 02/09/2018 01:53 PM, Peter Zijlstra wrote:
On Mon, Jan 29, 2018 at 03:27:09PM -0800, Rohit Jain wrote:
[...]
@@ -6173,8 +6183,15 @@ static int select_idle_cpu(struct task_struct
*p, struct sched_do
On 02/09/2018 04:53 AM, Peter Zijlstra wrote:
On Mon, Jan 29, 2018 at 03:27:09PM -0800, Rohit Jain wrote:
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 26a71eb..ce5ccf8 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5625,6 +5625,11 @@ static unsigned long capacit
On 02/09/2018 07:46 AM, Dietmar Eggemann wrote:
On 02/09/2018 01:53 PM, Peter Zijlstra wrote:
On Mon, Jan 29, 2018 at 03:27:09PM -0800, Rohit Jain wrote:
[...]
@@ -6173,8 +6183,15 @@ static int select_idle_cpu(struct task_struct
*p, struct sched_domain *sd, int t
return -1;
On 02/09/2018 01:53 PM, Peter Zijlstra wrote:
On Mon, Jan 29, 2018 at 03:27:09PM -0800, Rohit Jain wrote:
[...]
@@ -6173,8 +6183,15 @@ static int select_idle_cpu(struct task_struct *p, struct
sched_domain *sd, int t
return -1;
if (!cpumask_test_cpu(cpu
On Mon, Jan 29, 2018 at 03:27:09PM -0800, Rohit Jain wrote:
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 26a71eb..ce5ccf8 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -5625,6 +5625,11 @@ static unsigned long capacity_orig_of(int cpu)
> return cpu_rq(
On Mon, Feb 05, 2018 at 10:50:41PM -0800, Joel Fernandes wrote:
> That's Ok with me. Just that I remember Peter messing with this path
> and that it was expensive to scan too much for some systems. The other
> thing is you're really doing to do a "fail safe" as you call it search
> here with SIS_P
On Mon, Jan 29, 2018 at 07:39:15PM -0800, Joel Fernandes wrote:
> > @@ -6081,7 +6086,7 @@ static int select_idle_core(struct task_struct *p,
> > struct sched_domain *sd, int
> >
> > for_each_cpu(cpu, cpu_smt_mask(core)) {
> > cpumask_clear_cpu(cpu, cpus);
>
On 02/05/2018 10:50 PM, Joel Fernandes wrote:
On Wed, Jan 31, 2018 at 9:50 AM, Rohit Jain wrote:
kernel/sched/fair.c | 38 --
1 file changed, 28 insertions(+), 10 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 26a71eb..ce5
On 02/05/2018 10:42 PM, Joel Fernandes wrote:
On Tue, Jan 30, 2018 at 11:47 AM, Rohit Jain wrote:
[...]
@@ -6102,7 +6107,8 @@ static int select_idle_core(struct task_struct *p,
struct sched_domain *sd, int
*/
static int select_idle_smt(struct task_struct *p, struct sched_domain
*sd, in
On Mon, Feb 5, 2018 at 10:50 PM, Joel Fernandes wrote:
> On Wed, Jan 31, 2018 at 9:50 AM, Rohit Jain wrote:
>>kernel/sched/fair.c | 38 --
>>1 file changed, 28 insertions(+), 10 deletions(-)
>>
>> diff --git a/kernel/sched/fair.c b/kernel
On Wed, Jan 31, 2018 at 9:50 AM, Rohit Jain wrote:
>kernel/sched/fair.c | 38 --
>1 file changed, 28 insertions(+), 10 deletions(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index 26a71eb..ce5ccf8 100644
> --- a/
On Tue, Jan 30, 2018 at 11:47 AM, Rohit Jain wrote:
[...]
>>> @@ -6102,7 +6107,8 @@ static int select_idle_core(struct task_struct *p,
>>> struct sched_domain *sd, int
>>>*/
>>> static int select_idle_smt(struct task_struct *p, struct sched_domain
>>> *sd, int target)
>>> {
>>> - int
On 01/30/2018 05:57 PM, Joel Fernandes wrote:
Signed-off-by: Rohit Jain
---
kernel/sched/fair.c | 38 --
1 file changed, 28 insertions(+), 10 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 26a71eb..ce5ccf8 100644
--- a/kernel/
On Tue, Jan 30, 2018 at 11:47 AM, Rohit Jain wrote:
[...]
>>>
>>> Currently fast path in the scheduler looks for an idle CPU to schedule
>>> threads on. Capacity is taken into account in the function
>>> 'select_task_rq_fair' when it calls 'wake_cap', however it ignores the
>>> instantaneous capac
Hi Joel,
On 1/29/2018 7:39 PM, Joel Fernandes wrote:
Hi Rohit,
On Mon, Jan 29, 2018 at 3:27 PM, Rohit Jain wrote:
Currently fast path in the scheduler looks for an idle CPU to schedule
threads on. Capacity is taken into account in the function
'select_task_rq_fair' when it calls 'wake_cap', h
Hi Rohit,
On Mon, Jan 29, 2018 at 3:27 PM, Rohit Jain wrote:
> Currently fast path in the scheduler looks for an idle CPU to schedule
> threads on. Capacity is taken into account in the function
> 'select_task_rq_fair' when it calls 'wake_cap', however it ignores the
> instantaneous capacity and
Currently fast path in the scheduler looks for an idle CPU to schedule
threads on. Capacity is taken into account in the function
'select_task_rq_fair' when it calls 'wake_cap', however it ignores the
instantaneous capacity and looks at the original capacity. Furthermore
select_idle_sibling path o
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