lkml.org 
[lkml]   [2004]   [Oct]   [8]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
FromJesse Barnes <>
SubjectRe: [Lse-tech] Re: [RFC PATCH] scheduler: Dynamic sched_domains
DateFri, 8 Oct 2004 09:43:21 -0700
On Thursday, October 7, 2004 11:08 pm, Nick Piggin wrote:
> Takayoshi Kochi wrote:
> > Yup, if SD_NODES_PER_DOMAIN is set to 4, our 32-way TX-7 have
> > two disjoint domains ;(
> > (though the current default is 6 for ia64...)
> >
> > I think the default configuration of the scheduler domains should be
> > as identical to its real hardware topology as possible, and should
> > modify the default only when necessary (e.g. for Altix).
>
> That is the idea. Unfortunately the ia64 modifications are ia64 wide.
> I don't think it should be too hard to make it sn2 only.

The NEC and Altix machines both use a SLIT table to describe the machine
layout, so it should be possible to build them correctly w/o special case
code (I hope). The question is how big to make them, but if that's runtime
changeable, then no big deal. Like I said, the main thing missing from my
changes is a system wide domain, but I think John has some ideas about that.

Jesse

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:06    [from the cache]
©2003-2009