Re: [Xen-devel] watches not working from domU userspace

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 2 Jan 2006, at 11:24, Cihula, Joseph wrote:

> It seems like this would add a lot of overhead.  Xenstore commands are
> typically only a couple hundred bytes and since they are synchronous
> (per client and excluding watches), this would leave a lot of the page
> unused.  Moreover, for transient clients, such as xenstore-{read, 
> write,
> rm}, the extra setup/teardown would also add to the cost.
Those overheads will certainly be insignificant. Far more important 
concerns are a clean design and small (as possible) implementation, 
with as little code/logic duplication as possible.
Implementing a proxy xenstored in the kernel for the use of userland 
code is not a nice solution. :-)
 -- Keir


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