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SubjectRe: [PATCH -mm][preview] memcg: a patch series for next [0/9]
On Tue, 19 Aug 2008 18:11:50 +0900
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> wrote:

> On Tue, 19 Aug 2008 17:30:14 +0900, KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> > Hi,
> >
> > This post is for showing what I'm trying now.
> >
> > This patch set is for memory resource controller.
> > 4 purposes here.
> > - improve performance of memcg.
> > - remove lock_page_cgroup()
> > - making page_cgroup->flags to be atomic_ops.
> > - support mem+swap controller.
> >
>
> Thank you for working on mem+swap controller.
>
> I'll review and comment later.
>
My next version (writing now) will be much cleaner and clearer than this ;)
So, please review only if you have free time.

Thanks,
-Kame

>
> Thanks,
> Daisuke Nishimura.
>
> > But this is still under test and the series is not well organised.
> > and base tree is old. (2.6.27-rc1-mm1) I'll rebase this set to newer mmtom tree.
> >
> > Maybe this set have some troubles/objections but I think the direction is not bad.
> >
> > Patch description. (patch ordering is bad. I'll fix in the next post.)
> >
> > [1/9] ... private_counter ...replace res_counter with my own counter.
> > This is for supporting mem+swap controller.
> > (And I think memcg has a bit different characteristics from other
> > users of res_counter....)
> >
> > [2/9] ... change-order-uncharge ...
> > This patch is for making it easy to handle swap-cache.
> >
> > [3/9] ... atomic_flags
> > This patch changes operations for page_cgroup->flags to be atomic_ops.
> >
> > [4/9] ... delayed freeing.
> > delaying to free page_cgroup at uncharge.
> >
> > [5/9] ... RCU freeing of page_cgroup
> > free page_cgroup by RCU.
> >
> > [6/9] ... lockress page cgroup.
> > remove lock_page_cgroup() and use RCU semantics.
> >
> > [7/9] ... add preftech
> > add prefetch() macro
> >
> > [8/9] ... mem+swap controller base.
> > introduce mem+swap controller. A bit big patch....but have tons of TODO.
> > and have troubles. (it seems it's difficult to cause OOM killer.)
> >
> > [9/9] ... mem+swap controller control files.
> > add mem+swap controller's control files.
> >
> > I'd like to push patch [2,3,4,5,6,7] first.
> >
> > Thanks,
> > -Kame
> >
>



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