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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2012-04-17 15:49:36 +0200
committerIngo Molnar <mingo@kernel.org>2012-05-09 15:00:55 +0200
commitcb83b629bae0327cf9f44f096adc38d150ceb913 (patch)
tree13f7da07ee150a97c21aace57eaa817a30df9539 /arch/tile
parentbd939f45da24e25e08a8f5c993c50b1afada0fef (diff)
downloadlinux-cb83b629bae0327cf9f44f096adc38d150ceb913.tar.bz2
sched/numa: Rewrite the CONFIG_NUMA sched domain support
The current code groups up to 16 nodes in a level and then puts an ALLNODES domain spanning the entire tree on top of that. This doesn't reflect the numa topology and esp for the smaller not-fully-connected machines out there today this might make a difference. Therefore, build a proper numa topology based on node_distance(). Since there's no fixed numa layers anymore, the static SD_NODE_INIT and SD_ALLNODES_INIT aren't usable anymore, the new code tries to construct something similar and scales some values either on the number of cpus in the domain and/or the node_distance() ratio. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: David Howells <dhowells@redhat.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: linux-alpha@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-sh@vger.kernel.org Cc: Matt Turner <mattst88@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Henderson <rth@twiddle.net> Cc: sparclinux@vger.kernel.org Cc: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dimitri Sivanich <sivanich@sgi.com> Cc: Greg Pearson <greg.pearson@hp.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: bob.picco@oracle.com Cc: chris.mason@oracle.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/n/tip-r74n3n8hhuc2ynbrnp3vt954@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/tile')
-rw-r--r--arch/tile/include/asm/topology.h26
1 files changed, 0 insertions, 26 deletions
diff --git a/arch/tile/include/asm/topology.h b/arch/tile/include/asm/topology.h
index 6fdd0c860193..7a7ce390534f 100644
--- a/arch/tile/include/asm/topology.h
+++ b/arch/tile/include/asm/topology.h
@@ -78,32 +78,6 @@ static inline const struct cpumask *cpumask_of_node(int node)
.balance_interval = 32, \
}
-/* sched_domains SD_NODE_INIT for TILE architecture */
-#define SD_NODE_INIT (struct sched_domain) { \
- .min_interval = 16, \
- .max_interval = 512, \
- .busy_factor = 32, \
- .imbalance_pct = 125, \
- .cache_nice_tries = 1, \
- .busy_idx = 3, \
- .idle_idx = 1, \
- .newidle_idx = 2, \
- .wake_idx = 1, \
- .flags = 1*SD_LOAD_BALANCE \
- | 1*SD_BALANCE_NEWIDLE \
- | 1*SD_BALANCE_EXEC \
- | 1*SD_BALANCE_FORK \
- | 0*SD_BALANCE_WAKE \
- | 0*SD_WAKE_AFFINE \
- | 0*SD_PREFER_LOCAL \
- | 0*SD_SHARE_CPUPOWER \
- | 0*SD_SHARE_PKG_RESOURCES \
- | 1*SD_SERIALIZE \
- , \
- .last_balance = jiffies, \
- .balance_interval = 128, \
-}
-
/* By definition, we create nodes based on online memory. */
#define node_has_online_mem(nid) 1