On Fri, Jan 03, 2014 at 02:51:14PM -0500, Andres Lagar-Cavilla
wrote:> On Jan 3, 2014, at 1:41 PM, Konrad Rzeszutek Wilk
<konrad.wilk@oracle.com> wrote:
>
> > On Fri, Jan 03, 2014 at 09:49:36AM -0500, Andres Lagar-Cavilla wrote:
> >>
> >> On Dec 31, 2013, at 11:31 AM, Tim Deegan <tim@xen.org>
wrote:
> >>
> >>> At 10:33 -0500 on 31 Dec (1388482410), Konrad Rzeszutek Wilk
wrote:
> >>>> On Mon, Dec 23, 2013 at 06:34:55PM +0000, Russell Pavlicek
wrote:
> >>>>> On Twitter, Florian Heigl sent a out a few messages
about issues with xenpaging:
> >>>>>
> >>>>> ---
> >>>>> 19-Dec: Anyone successfully use
#xen<https://twitter.com/search?q=%23xen&src=hash>
#xenpaging<https://twitter.com/search?q=%23xenpaging&src=hash>? docs
are at SLES manual, rest is mostly this:
http://www.gossamer-threads.com/lists/xen/devel/255798<http://t.co/P36VdL84Et>
dead feature or usable?
> >>>>>
> >>>>> 22-Dec:
@lars_kurth<https://twitter.com/lars_kurth>
@RCPavlicek<https://twitter.com/RCPavlicek> Hey guys, I wrote down as much
as I could https://piratenpad.de/p/Ik3lOBLniq1L5TEM
<https://t.co/e5LQCUD9d0> (since I'm on holiday and not constant
online)
> >>>>>
> >>>>> 22-Dec: Yay, tested
#xen<https://twitter.com/search?q=%23xen&src=hash> Xenpaging (memory
overcommit)
> >>>>> [x] largely untested
> >>>>> [x] docs outdated
> >>>>> [x] syntax+logic changed
> >>>>> [x] broken
> >>>>> ---
> >>>>>
> >>>>> [I've taken the liberty of removing the colorful
expletive from the final post]
> >>>>>
> >>>>> Is Florian's assessment correct, or is there
somewhere we can point him for help? I'm on vacation this week, but if
someone replies to me, I will try to forward the information appropriately.
> >>>>
> >>>> The Maintainers file implies otherwise. Let me CC the
maintainers.
> >>>
> >>> Andres really owns this code, so I'll punt to him for an
official
> >>> answer, but:
> >> The part actively maintained is the hypervisor support for paging,
and the interface.
> >>
> >> tools/xenpaging is one way to consume that interface. It seems to
have suffered from bitrot.
> >
> > What is the other interface? Thanks!
>
> Not sure what the question is. There is one interface. What I was referring
to, is that tools/xenpaging implements one specific paging policy: victim
selection, rate limiting, paging target, all of these are algorithms that
entirely define what bang for your money you will get.
>
Right, but there is other code that uses this interface as well correct?
Is it available for users ?