Date: Sun, 27 Aug 2017 10:18:28 +0200 From: Ed Schouten <ed@nuxi.nl> To: Conrad Meyer <cem@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r322942 - head/sys/kern Message-ID: <CABh_MKknHyosfENq8SPzSOAhGFKL_tALfNdn5=eJqa29yjFqSA@mail.gmail.com> In-Reply-To: <201708270514.v7R5EmDK064785@repo.freebsd.org> References: <201708270514.v7R5EmDK064785@repo.freebsd.org>
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Hi Conrad, [ Context: I don't understand anything about CPU topologies! ] 2017-08-27 7:14 GMT+02:00 Conrad Meyer <cem@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@nuxi.nl> Nuxi, 's-Hertogenbosch, the Netherlands KvK-nr.: 62051717
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