linux-kernel - Re: [PATCH] sched: fix constructing the span cpu mask of sched domain

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Date:	Wed, 11 May 2011 16:15:09 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Hillf Danton <dhillf@...il.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Mike Galbraith <efault@....de>,
	Yong Zhang <yong.zhang0@...il.com>,
	Andreas Herrmann <andreas.herrmann3@....com>
Subject: Re: [PATCH] sched: fix constructing the span cpu mask of sched domain


* Hillf Danton <dhillf@...il.com> wrote:

> On Wed, May 11, 2011 at 9:54 PM, Peter Zijlstra <peterz@...radead.org> wrote:
> > On Wed, 2011-05-11 at 21:26 +0800, Hillf Danton wrote:
> >> Your work for rewriting NUMA support, published at
> >>          http://marc.info/?l=linux-kernel&m=130218515520540
> >> is patched by changing how level is computed and by changing how it is
> >> used to build the mask.
> >>
> >> When computing, some valid levels are lost in your work.
> >>
> >> When building mask, nodes are selected only if they have same distance,
> >> thus nodes of less distance are also masked out since the computation of
> >> level now is tough.
> >>
> >> Without MUNA hardware, I did not test the patch:(
> >
> > I do have a (tiny) NUMA box (2 nodes) but that actually booted with the
> > old code too, Andreas Hermann from AMD (CC'ed) is usually willing to
> > test such patches on somewhat larger systems. Please send a full patch
> > against tip/master for him to apply.
> >
> Oh my God, I am not good at playing game with git, already laughed by many
> guys on LKML. As you see, I delivered all works based on diff through 512K ADSL,
> things like "git clone" sounds really monstrous.
> 
> Would you please, Peter, teach me how to play git, since I want to do more?

Here's how you fetch the scheduler tree:

  http://people.redhat.com/mingo/tip.git/README

and here's the Kernel Hacker's Guide to Git:

  http://linux.yyz.us/git-howto.html

Thanks,

	Ingo
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