Re: 3.10-rcX: cpu governor ondemand doesn't scale well after s2ram

["Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>]

On 07/04/2013 12:31 PM, Viresh Kumar wrote:
> On 4 July 2013 12:25, Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> wrote:
>> On 07/04/2013 01:16 AM, Toralf Förster wrote:
>>> On 06/30/2013 07:05 PM, Toralf Förster wrote:
>>>> On 06/30/2013 06:33 PM, Srivatsa S. Bhat wrote:
>>>>> Toralf, can you please
>>>>> try out the below patch and see if it improves anything? (Don't revert anything,
>>>>> just apply the below diff on a problematic kernel and see if it solves your
>>>>> issue).
>>>>
>>>> applied on top of a66b2e5 - issue went away (either fixed or hidden now)
>>>>
>>>> Thx
>>>>
>>> But if I do apply that patch on top of kernel 3.10 then it has no effect
>>> - 3.10 shows the same issue.
>>>
>>
>> Weird. So I think something *else* got broken by some other patch, _after_
>> a66b2e5. Viresh, do you have any suspect commits in mind?
> 
> If I was God I could have. But as I am a poor human being I
> need more details (preferably with git bisect) :)
> 

Haha :)

Coming to git bisect, I think it needs to be done between a66b2e5 + this-patch
and 3.10 + this-patch, to ensure that we look for problematic commits in-between
a66b2e5 and 3.10 (to avoid the bisect result ending up at a66b2e5 again).

Regards,
Srivatsa S. Bhat