Messages in this thread | | | Subject | Re: [RFC][PATCH 00/14] Rewrite sched_domain/sched_group creation | From | Peter Zijlstra <> | Date | Fri, 25 Mar 2011 22:46:41 +0100 |
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On Mon, 2011-03-14 at 16:06 +0100, Peter Zijlstra wrote: > So I got annoyed with the whole sched_domain/sched_group creation mess again > and decided to actuall do something about it. See here ;-) > > Its not completely done yet, but much of the ground-work is there. > > The final goal is to be able to have a simple way to dynamically specify the > architecture topoplogy and have the generic code in charge of building the data > structures. The architecture would need to provide a function that maps a cpu > to a cpumask and a function that initializes the sched_domain (flags etc.), > this would replace the now still hard-coded __build_*_sched_domain() calls in > __build_sched_domains().
Got to here last friday a week ago, and started on:
> With that we can also kill the current NODE and ALLNODES mess and generate > appropriate masks from say the ACPI SLIT table by grouping CPUs on their node > distance.
which I just finished.
> This would allow us to kill the horrid mess in x86's cpu_coregroup_mask() and > properly support the AMD magnycours stuff.
Still todo.
> Anyway, not quite there yet.. patches build and boot on a 2*6*2 wsm box.
Still boots, although a 2 node system isn't very interesting.
I pushed out an updated version to:
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched.git sched_domain
we're now at:
include/linux/sched.h | 26 +- include/linux/topology.h | 25 - kernel/cpuset.c | 2 +- kernel/sched.c | 1094 ++++++++++++++++------------------------------ kernel/sched_fair.c | 32 +- 5 files changed, 407 insertions(+), 772 deletions(-)
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