Re: [Xen-devel] [RFC] Lightweight socket communication between domainsin a single machine

["Zhu Han" <schumi.han@xxxxxxxxx>]

HI,

I'm quite curious how Xway find out whether the peer is on the same
host or on another host? Does the switch provide such capability?

On 5/3/07, 김강호 <sunnykuz@xxxxxxxxx> wrote:
> Dear Ian Pratt.
>
> Thanks for your attention.
>
> I attached a PPT file that has some note on the implementation, comparing to
> XenSocket.
> In each slide of the PPT, I wrote a few lines of slide note. Please read the
> note for more details.
> Since I don't know much about XenSocket I comapred only a few features that
> I'm interested in.
>
> I know that this summary slide is not enough to understand the whole things
> of Xway.
> However, let's start discussion on Xway as well as XenSocket.
>
>
> 2007/5/1, Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>:
> > > I'd like to introduce a socket communication facility optimized for
> > > sending and receiving data between domains in a single machine, named
> > > Xway.
> >
> > Cool.
> > Please can you write a few notes on the implementation, comparing and
> > contrasting to XenSocket:
> >
> http://www.xensource.com/files/xensummit_4/SuzanneMcIntosh_XenSummit_200
> > 7.pdf
> >
> > I'd like to get a reliable inter-domain byte stream protocol in to
> > mainline Xen. Ideally, there'd be a story on remoting it if the VM's got
> > migrated to different nodes e.g. tunnelled over TCP or SDP.
> >
> > Ian
> >
> > > Xway is a network module that enables socket programs running on
> > > virtual machines in a single machine to communicate each other
> > > efficiently though socket interface. Xway shows better socket
> > > communication latency and bandwidth than the native socket of Xen.
> > Xway
> > > also provides binary compatiblity for socket interface, so that the
> > > socket programs don't have to be recompiled to exploit the advantages
> > > of Xway.
> > > We have tested the binary compatiblity for a couple of programs such
> > as
> > > ssh, vsftp, proftp, apache, and mysql.
> > > Those programs works well without any recompilication or modification
> > > to the source codes as we expected.
> > >
> > > The main schemes of Xway are as follows:
> > > 1) shared memory between domains
> > > 2) bypassing TCP/IP and Domain 0
> > > 3) dual channel approach dividing data send/receive and others on a
> > > socket
> > >
> > > The implementation of Xway can be found at
> > > http://sourceforge.net/projects/xway.
> > > It consists of  kernel patch, a kernel module, and a user daemon.
> > >
> > > Please evaluate Xway and comments on it .
> > > Feel free to contact me if you meet problems when installing and
> > > evaluating it.
> > >
> > >
> > > Thank you  in advance.
> > >
> > >
> > > ----------------------------------------------------
> > >
> > > Kang-ho Kim
> > >
> > > Senior Member of Engineering Staff
> > >
> > > System Software Research Team/Internet Server Group
> > > Digital Home Research Division/Electronics and Telecommunications
> > > Research Institute
> > >
> > > 161 Gajeong-dong, Yuseong-gu, Daejeon, 305-350 KOREA
> > > Phone : 82-42-860-6226
> > >
> > > Fax : 82-42-860-6699
> > > Mobile : 82-10-4433-8538
> > >
> > > E-mail : khk@xxxxxxxxxx, sunnykuz@xxxxxxxxx
> > > ----------------------------------------------------
> >
> >
>
>
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--
best regards,
hanzhu

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