On Thu, May 24, 2018 at 02:55:25PM -0400, Waiman Long wrote:
> On 05/24/2018 11:43 AM, Peter Zijlstra wrote:
> > I'm confused... why exactly do we have both domain and load_balance ?
>
> The domain is for partitioning the CPUs only. It doesn't change the load
> balancing state. So the load_balanc
On 05/25/2018 05:40 AM, Patrick Bellasi wrote:
> On 24-May 11:22, Waiman Long wrote:
>> On 05/24/2018 11:16 AM, Juri Lelli wrote:
>>> On 24/05/18 11:09, Waiman Long wrote:
On 05/24/2018 10:36 AM, Juri Lelli wrote:
> On 17/05/18 16:55, Waiman Long wrote:
>
> [...]
>
>> +
On 24-May 11:22, Waiman Long wrote:
> On 05/24/2018 11:16 AM, Juri Lelli wrote:
> > On 24/05/18 11:09, Waiman Long wrote:
> >> On 05/24/2018 10:36 AM, Juri Lelli wrote:
> >>> On 17/05/18 16:55, Waiman Long wrote:
> >>>
> >>> [...]
> >>>
> +A parent cgroup cannot distribute all its CPUs
On 05/24/2018 11:43 AM, Peter Zijlstra wrote:
> On Thu, May 17, 2018 at 04:55:42PM -0400, Waiman Long wrote:
>> The sched.load_balance flag is needed to enable CPU isolation similar to
>> what can be done with the "isolcpus" kernel boot parameter. Its value
>> can only be changed in a scheduling do
On Thu, May 17, 2018 at 04:55:42PM -0400, Waiman Long wrote:
> The sched.load_balance flag is needed to enable CPU isolation similar to
> what can be done with the "isolcpus" kernel boot parameter. Its value
> can only be changed in a scheduling domain with no child cpusets. On
> a non-scheduling d
On 05/24/2018 11:16 AM, Juri Lelli wrote:
> On 24/05/18 11:09, Waiman Long wrote:
>> On 05/24/2018 10:36 AM, Juri Lelli wrote:
>>> On 17/05/18 16:55, Waiman Long wrote:
>>>
>>> [...]
>>>
+ A parent cgroup cannot distribute all its CPUs to child
+ scheduling domain cgroups unless its loa
On 24/05/18 11:09, Waiman Long wrote:
> On 05/24/2018 10:36 AM, Juri Lelli wrote:
> > On 17/05/18 16:55, Waiman Long wrote:
> >
> > [...]
> >
> >> + A parent cgroup cannot distribute all its CPUs to child
> >> + scheduling domain cgroups unless its load balancing flag is
> >> + turned off.
> >>
On 05/24/2018 10:36 AM, Juri Lelli wrote:
> On 17/05/18 16:55, Waiman Long wrote:
>
> [...]
>
>> +A parent cgroup cannot distribute all its CPUs to child
>> +scheduling domain cgroups unless its load balancing flag is
>> +turned off.
>> +
>> + cpuset.sched.load_balance
>> +A read-w
On 17/05/18 16:55, Waiman Long wrote:
[...]
> + A parent cgroup cannot distribute all its CPUs to child
> + scheduling domain cgroups unless its load balancing flag is
> + turned off.
> +
> + cpuset.sched.load_balance
> + A read-write single value file which exists on non-root
>
The sched.load_balance flag is needed to enable CPU isolation similar to
what can be done with the "isolcpus" kernel boot parameter. Its value
can only be changed in a scheduling domain with no child cpusets. On
a non-scheduling domain cpuset, the value of sched.load_balance is
inherited from its p
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