Re: [PATCH v3] vmstat: Kernel stack usage histogram

[Shakeel Butt]

Hi Pasha,

On Wed, Jul 17, 2024 at 12:50:00PM GMT, Pasha Tatashin wrote:
> On Wed, Jun 12, 2024 at 2:50 PM Shakeel Butt <shakeel.butt@xxxxxxxxx> wrote:
> >
[...]
> > >
> > > One more question: Is there any concern in making
> > > CONFIG_DEBUG_STACK_USAGE not a debug feature i.e. enable in default
> > > kernels instead of just debug kernels?
> 
> We enabled it in Google ProdKernel. There is some overhead when
> threads are exiting, because we are looking for the first non-zero
> byte, but that is minimal. We haven't observed any performance impact
> on our fleet.
>

So, you would support making CONFIG_DEBUG_STACK_USAGE enabled by
default, right?