svn commit: r322942 - head/sys/kern

Ed Schouten ed at nuxi.nl
Sun Aug 27 08:19:00 UTC 2017


Hi Conrad,

[ Context: I don't understand anything about CPU topologies! ]

2017-08-27 7:14 GMT+02:00 Conrad Meyer <cem at freebsd.org>:
> +       while (top->cg_children == 1) {
> +               top = &top->cg_child[0];
> +               top->cg_parent = NULL;
> +       }

This only removes layers from the top if they only have a single
child. Question: is it possible/likely to have CPU topologies where
one of the middle layers only has one child? If so, would it make
sense to use tree traversal here to do the flattening?

-- 
Ed Schouten <ed at nuxi.nl>
Nuxi, 's-Hertogenbosch, the Netherlands
KvK-nr.: 62051717


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