[PATCH] powerpc/configs: Enable function trace by default

[Balbir Singh]

On Thu, Apr 13, 2017 at 6:41 PM, Christophe LEROY
<christophe.leroy at c-s.fr> wrote:
>
>
> Le 13/04/2017 à 10:19, Balbir Singh a écrit :
>>
>> On Thu, 2017-04-13 at 09:24 +0200, Christophe LEROY wrote:
>>>
>>> Hi Baldir
>>
>>
>> Hi Christophe, It's Balbir
>
>
> Sorry
>
No worries!

>>
>>>
>>> Le 13/04/2017 à 09:03, Balbir Singh a écrit :
>>>>
>>>> We expect to have these configs on by default, most
>>>> distros turn them off, its always good to have them on
>>>> so that we can use them and hopefully not break them
>>>
>>>
>>> Isn't it the purpose of the target allyesconfig to allow such tests ?
>>>
>>
>> As a developer I don't use allyesconfig for submitting patches or testing
>> the kernel.
>
>
> I do it most of the time to check compilation doesn't fail.
>
>>
>>> FTRACE is quite CPU consumming, shouldn't it really be on by default ?
>>
>>
>> It does some work at boot to NOP out function entry points at _mcount
>> locations. Is that what you are referring to? Or the overhead of the
>> code in terms of size? Most distro kernels have tracing on by default.
>
>
> You said in you patch text: "most distros turn them off".
>

My bad.. sometimes one can type faster than one can think, this is one
of those occasions :)

> If most distros turn it ON (and not OFF as you said), then I can understand

Yes

Balbir Singh.