Bug#534964: Any updates on this BUG?
* Ben Hutchings <ben@decadent.org.uk> [2011-05-23 08:10:21]:
> On Mon, 2011-05-23 at 12:43 +0530, Balbir Singh wrote:
> > * Ben Hutchings <ben@decadent.org.uk> [2011-05-23 00:10:13]:
> >
> > > On Fri, 2011-05-20 at 17:35 +0530, Balbir Singh wrote:
> > > > * maximilian attems <maks@debian.org> [2011-05-12 11:53:25]:
> > > >
> > > > > On Wed, May 11, 2011 at 12:08:10PM +0000, maximilian attems wrote:
> > > > > > On Wed, May 11, 2011 at 11:33:31AM +0000, maximilian attems wrote:
> > > > > > > On Wed, May 11, 2011 at 04:43:06PM +0530, Balbir Singh wrote:
> > > > > > > > <balbir@linux.vnet.ibm.com> wrote:
> > > > > > > > > Hi, Ben,
> > > > > > > > >
> > > > > > > > > We've made significant progress in reducing the overhead of memory
> > > > > > > > > cgroup subsystem. I'd request you to try it and enable it. If there
> > > > > > > > > are some concerns, we could always address them. There are more
> > > > > > > > > interesting changes on the way as well.
> > > > > >
> > > > > > could you point to the relevant commits?
> > > > >
> > > > > so unless this information comes along soon,
> > > > > I'll revert my change.
> > > > >
> > > >
> > > > I sent some information earlier, I hope it was useful. BTW, I don't
> > > > see memory cgroups enabled in debian experimental (changelog), should I be looking
> > > > elsewhere?
> > >
> > > They're enabled in 2.6.39-1 (in sid). However, I actually meant them to
> > > be disabled by default, and that will be done in 2.6.39-2.
> > >
> >
> > Oops, but why do you want to disable them by default? Other distros
> > have them enabled, disabled implies more boot options required, lesser
> > testing of the feature and feedback. Is there a strong reason to
> > change it?
>
> Yes, because it currently (2.6.39) requires extra page tables that take
> time and memory. I understand this is supposed to change soon, and we
> can reconsider then.
>
Sorry, I don't understand the extra page tables remark, that changed
way back in 2.6.30/1 timeframe. Could you please elaborate, so that I
can clarify the correct concern.
--
Three Cheers,
Balbir
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