Re: [Xen-devel] xend / xenstored performance & scalability issues

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 12/10/06 15:16, "Daniel P. Berrange" <berrange@xxxxxxxxxx> wrote:

> Clearly we can't address these for 3.0.3, but I think both of these areas need
> serious work in 3.0.4 if we want a scalable control plane in Dom0. Fixing
> the XenD bit looks particularly hard because any single method using the
> convenience xenstored read functions can be called under many different
> contexts, so of which needs transactions, others which don't. It ought to
> be possible to trace back all the calls & make it possible to pass explicit
> xstransct objects into all calls & then kill off the convenience methods.

Yes, xenstored is very simple minded in many respects. We will certainly be
improving this during 3.0.4 development -- I think we can get the costs down
very significantly for commonplace operations without enormous effort.

 -- Keir



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