Re: [GIT PULL] nohz: Adaptively stop the tick, finally

Ingo Molnar
2013-04-25T06:28:36Z

* Frederic Weisbecker <fweisbec@gmail.com> wrote:

> > depends on VIRT_CPU_ACCOUNTING_GEN
> >
> > It should _really_ select both the RCU and the CPU time accounting model
> > automatically!
>
> Yeah I know. I have yet to fix that in Kconfig (it's a Kconfig limitation).

Why cannot we simply select it and its dependencies, explicitly, for the
time being? Something like:

depends on 64BIT
select VIRT_CPU_ACCOUNTING
select VIRT_CPU_ACCOUNTING_GEN

90% of the .config's have VIRT_CPU_ACCOUNTING_GEN turned off, because it's
a default-off feature - so dynticks-full is effectively hidden from the
large majority of testers...

Thanks,

Ingo