a proposed callout API

[Poul-Henning Kamp]

In message <ejcasd$2rf$1 at sea.gmane.org>, Ivan Voras writes:
>Poul-Henning Kamp wrote:
>
>...
>> 4. We execute all callouts on one CPU only.
>...
>> Short callouts, less than 2 seconds, will be stored in a binary
>> heap (A tree where a node is numerically lower than its parents.)
>> 
>> The depth of the heap is Log2(nodes) and there are very efficient
>> ways to store and access the heap.
>> 
>> Locking will be with one mutex for the heap.
>
>Won't that retain the 1-cpu-only "feature"?

No, that will be one lock per callout-group, however we decide
to use those.

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