Re: [PATCH] fs/proc: introduce /proc/stat2 file

[Waiman Long]

On 10/29/2018 04:38 PM, Davidlohr Bueso wrote:
> On Mon, 29 Oct 2018, Waiman Long wrote:
>
>> BTW, since you are making stat2 compatible with stat, will that be
>> easier from the user API perspective if we use a sysctl parameter to
>> turn on and off IRQs reporting for /proc/stat, for example?
>
> For one /proc/stat is also common for debugging envs (ie: performance)
> and I fear that if a tunnable modifies the behavior of the output, we
> it might never be usable again (at least not without having users also
> now consider the systctl parameter). Making it dynamic I think is not
> worth it.
>
> Thanks,
> Davidlohr

This is just a matter if it is easier for users to modify their code to
use /proc/stat2 or turning on a sysctl parameter. Again, this will
certainly depend on the circumstances.

Cheers,
Longman