lkml.org 
[lkml]   [2011]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/5] ppc64 scheduler fixes
From
Date
On Tue, 2011-09-20 at 10:19 +1000, Anton Blanchard wrote:
> Hi Peter,
>
> > On Mon, 2011-07-25 at 12:33 +1000, Anton Blanchard wrote:
> > > Here are a set of ppc64 scheduler fixes that help with some
> > > multi node performance issues.
> >
> > They look fine to me. I'll probably ping you when I'll rip out all
> > that SD_NODES_PER_DOMAIN crap for good, but until then I'm fine with
> > you fiddling it for ppc64.
> >
> > Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
>
> Are you OK if Ben takes this, or would you prefer to send it via the
> scheduler tree?

I've already put it in my next branch that I'll stick on github later
today hopefully :-)

Cheers,
Ben.

> Anton
> --
>
> [2/5] sched: Allow SD_NODES_PER_DOMAIN to be overridden
>
> We want to override the default value of SD_NODES_PER_DOMAIN on ppc64,
> so move it into linux/topology.h.
>
> Signed-off-by: Anton Blanchard <anton@samba.org>
>
> ---
>
> Index: linux-2.6-work/include/linux/topology.h
> ===================================================================
> --- linux-2.6-work.orig/include/linux/topology.h 2011-07-25 11:20:02.588717796 +1000
> +++ linux-2.6-work/include/linux/topology.h 2011-07-25 11:26:50.616468376 +1000
> @@ -201,6 +201,10 @@ int arch_update_cpu_topology(void);
> .balance_interval = 64, \
> }
>
> +#ifndef SD_NODES_PER_DOMAIN
> +#define SD_NODES_PER_DOMAIN 16
> +#endif
> +
> #ifdef CONFIG_SCHED_BOOK
> #ifndef SD_BOOK_INIT
> #error Please define an appropriate SD_BOOK_INIT in include/asm/topology.h!!!
> Index: linux-2.6-work/kernel/sched.c
> ===================================================================
> --- linux-2.6-work.orig/kernel/sched.c 2011-07-25 11:20:09.538850173 +1000
> +++ linux-2.6-work/kernel/sched.c 2011-07-25 11:26:50.626468565 +1000
> @@ -6938,8 +6938,6 @@ static int __init isolated_cpu_setup(cha
>
> __setup("isolcpus=", isolated_cpu_setup);
>
> -#define SD_NODES_PER_DOMAIN 16
> -
> #ifdef CONFIG_NUMA
>
> /**
> --
> 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: 2011-09-20 03:43    [W:0.106 / U:0.644 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site