[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Scalable Event Channel ABI design (draft A)
On 05/02/13 18:57, David Vrabel wrote: What to do here is a non-trivial decision. Possible options include: 1. Merge the 3-level ABI for 4.3. Work on the FIFO-based ABI in parallel, aiming to get this in for 4.4. This means maintaining 3 event channel ABIs in Xen. 2. Slip the 4.3 release for 2-3 months and merge the FIFO-based ABI in. 3. Status quo. Defer extending the event channel ABI to 4.4. The preferable option may be to: 4. Get the 3-level ABI to a mergable state. In parallel develop a prototype of the FIFO-based ABI. When the prototype is ready or the 4.3 freeze is here, evaluate it and make a decision then. Just to clarify, the difference between #1 and #4 is that in #4 we hold off on the merge, to delay committing to a specific course of action until later? That seems at first blush to be a pretty safe option. But I think it's worth pointing out that in practice the end result is likely to be that we just go with #1 eventually anyway: if the FIFO ABI can't be finished in 4 months giving it all our effort, can we really expect it to be finished in any less time while polishing up the 3-level ABI? I was going to say, "There's no particular reason to merge the 3-level ABI sooner rather than later", but of course there is: it allows considerably longer and wider testing. No conclusion here, just adding to the mix of things to consider. :-) -George _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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