Re: [PATCH] Kconfig: CONFIG_UNEVICTABLE_LRU move into EMBEDDED submenu

KOSAKI Motohiro
2009-05-13T08:58:43Z

> Hi, Kosaki.
>
> On Wed, 13 May 2009 17:30:45 +0900 (JST)
> KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> wrote:
>
> > Subject: [PATCH] Kconfig: CONFIG_UNEVICTABLE_LRU move into EMBEDDED submenu
> >
> > Almost people always turn on CONFIG_UNEVICTABLE_LRU. this configuration is
> > used only embedded people.
>
> I think at least embedded guys don't need it.
> But I am not sure other guys.

perhaps, I and you live in another embedded world.

> > +config UNEVICTABLE_LRU
> > + bool "Add LRU list to track non-evictable pages" if EMBEDDED
> > + default y
>
> If you want to move, it would be better as following.
>
> config UNEVICTABLE_LRU
> bool "Add LRU list to track non-evictable pages" if EMBEDDED
> default !EMBEDDED

No.
As far as I know, many embedded guys use this configuration.

they hate unexpected latency by reclaim. !UNEVICTABLE_LRU increase
unexpectability largely.