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.zijls...@chello.nl>
Are you OK if Ben takes this, or would you prefer to send it via the
scheduler tree?
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 <an...@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
/**
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