Re: [RFC PATCH v2] sched/fair: select idle cpu from idle cpumask in sched domain

Tim Chen
2020-09-24T17:43:36Z

On 9/24/20 10:13 AM, Phil Auld wrote:
> On Thu, Sep 24, 2020 at 09:37:33AM -0700 Tim Chen wrote:
>>
>>
>> On 9/22/20 12:14 AM, Vincent Guittot wrote:
>>
>>>>
>>>>>>
>>>>>> And a quick test with hackbench on my octo cores arm64 gives for 12
>>
>> Vincent,
>>
>> Is it octo (=10) or octa (=8) cores on a single socket for your system?
>
> In what Romance language does octo mean 10? :)
>

Got confused by october, the tenth month. :)

Tim

>
>> The L2 is per core or there are multiple L2s shared among groups of cores?
>>
>> Wonder if placing the threads within a L2 or not within
>> an L2 could cause differences seen with Aubrey's test.
>>
>> Tim
>>
>