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Re: [MirageOS-devel] Monitoring MirageOS guests on CubieBoard2

On 14/05/14 16:55, Anil Madhavapeddy wrote:
> On 14 May 2014, at 16:47, Jon Ludlam <jjl25@xxxxxxxxx> wrote:
>>> On 14/05/14 15:06, Anil Madhavapeddy wrote:
>>>> On 14 May 2014, at 14:01, buzz heavyyear <buzzheavyyear@xxxxxxxxxxx> wrote:
>>>> Now that I'm having a lot of fun getting up to speed with ocaml, xen, 
>>>> mirage, writing ocaml guests and getting them to run on the Cubieboard, 
>>>> what I really need is to see how they are performing as they are running.
>>>> XAPI/XCP has rrd. Am I right in thinking that a good way forward is to 
>>>> includegithub.com/xapi-project/xcp-rrd during the build process?
>>>> Perhaps there's an easier way? Any thoughts anyone?
>>> RRD is definitely the right direction for dom0 to track guest activity, but 
>>> we do need to get vchan up to speed from the guest side.  Dave, Jon, what's 
>>> the current state of ocaml-vchan?  I'm happy to add a Cohttp functor for it 
>>> if there's something vaguely resembling a FLOW interface (right now, it's 
>>> fairly low level).
>> I believe the state is 'I saw it work once recently'. There's nothing
>> really resembling a flow interface, but I'm sure one could be assembled
>> fairly easily.
> Thanks, is there a working unit test domain anywhere?  If we're going to 
> depend on vchan, it's time to get the low level bits well tested. The atomic 
> bit ops particularly worrisome, and we are likely to be the first ARM vchan 
> user (so let's get the x86 bugs sorted first :-)
> Anil
What I was using to test was the vchan client from the xen repository.
I'll have another look at it tomorrow if you like?


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