Re: [Xen-devel] Event channel questions

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 1 Aug 2005, at 21:37, Carl Holtje ;021;vcsg6; wrote:

> Can someone help define 'little bandwidth' and 'high-performance' in 
> less
> than relataive terms? What is an appropriate application of the event
> channel if it is low bandwidth?
Little bandwidth == one 'sticky bit' of information that is cleared by 
the receiver. It's an event pending bit.
High performance == when you send an event, teh receiver will receive 
an upcall sometime later. The mechanisms involved are simple so the CPU 
overhead is dominated by context switch time, if a context switch is 
required.
 -- Keir



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