Libxenstat to be considered as stable?

Libxenstat to be considered as stable?

[Jan Michael]

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Hello All,

As I'm going to write some kind of a monitoring sensor, which will use the
same information "xentop" currently provides, I would like to know if
libxenstat can be considered as stable? Will libxenstat be supported in
future versions of Xen?
Or is it rather advisable to get this information from the Xen Management
API, which maybe provide the same data?

The sensor mentioned before will be written in C++. 

Many thanks in advance,

	Jan


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Re: Libxenstat to be considered as stable?

[Mark Williamson]

> As I'm going to write some kind of a monitoring sensor, which will use the
> same information "xentop" currently provides, I would like to know if
> libxenstat can be considered as stable? Will libxenstat be supported in
> future versions of Xen?

I'm not sure but I don't think libxenstat changes very often, however AFAIK 
it's not guaranteed to stay stable either...

> Or is it rather advisable to get this information from the Xen Management
> API, which maybe provide the same data?

If you can do so then it might be a good idea; this would presumably make it 
easier to do remote access as well.

> The sensor mentioned before will be written in C++.

You could also consider using RedHat's libvirt which attempts to provide a 
virtualiser-agnostic tool (e.g. Qemu / KVM may be supported at some point in 
the future).

Cheers,
Mark


-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

Re: Libxenstat to be considered as stable?

[Josh Triplett]

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Jan Michael wrote:
> As I'm going to write some kind of a monitoring sensor, which will use the
> same information "xentop" currently provides, I would like to know if
> libxenstat can be considered as stable? Will libxenstat be supported in
> future versions of Xen?

As one of the original developers of libxenstat, I can say that we developed
it specifically as a layer to insulate programs from changes to the underlying
libraries, APIs, structure layouts, or hypercalls.  We do not intend for
existing APIs in it to change, though new ones may certainly appear.

That said, I don't currently have a lot of involvement with libxenstat, and I
don't know whether it will change or not.

- Josh Triplett


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