diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2012-04-17 09:49:36 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-09 09:00:55 -0400 |
| commit | cb83b629bae0327cf9f44f096adc38d150ceb913 (patch) | |
| tree | 13f7da07ee150a97c21aace57eaa817a30df9539 /arch/tile | |
| parent | bd939f45da24e25e08a8f5c993c50b1afada0fef (diff) | |
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.h | 26 |
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) | |||
| 78 | .balance_interval = 32, \ | 78 | .balance_interval = 32, \ |
| 79 | } | 79 | } |
| 80 | 80 | ||
| 81 | /* sched_domains SD_NODE_INIT for TILE architecture */ | ||
| 82 | #define SD_NODE_INIT (struct sched_domain) { \ | ||
| 83 | .min_interval = 16, \ | ||
| 84 | .max_interval = 512, \ | ||
| 85 | .busy_factor = 32, \ | ||
| 86 | .imbalance_pct = 125, \ | ||
| 87 | .cache_nice_tries = 1, \ | ||
| 88 | .busy_idx = 3, \ | ||
| 89 | .idle_idx = 1, \ | ||
| 90 | .newidle_idx = 2, \ | ||
| 91 | .wake_idx = 1, \ | ||
| 92 | .flags = 1*SD_LOAD_BALANCE \ | ||
| 93 | | 1*SD_BALANCE_NEWIDLE \ | ||
| 94 | | 1*SD_BALANCE_EXEC \ | ||
| 95 | | 1*SD_BALANCE_FORK \ | ||
| 96 | | 0*SD_BALANCE_WAKE \ | ||
| 97 | | 0*SD_WAKE_AFFINE \ | ||
| 98 | | 0*SD_PREFER_LOCAL \ | ||
| 99 | | 0*SD_SHARE_CPUPOWER \ | ||
| 100 | | 0*SD_SHARE_PKG_RESOURCES \ | ||
| 101 | | 1*SD_SERIALIZE \ | ||
| 102 | , \ | ||
| 103 | .last_balance = jiffies, \ | ||
| 104 | .balance_interval = 128, \ | ||
| 105 | } | ||
| 106 | |||
| 107 | /* By definition, we create nodes based on online memory. */ | 81 | /* By definition, we create nodes based on online memory. */ |
| 108 | #define node_has_online_mem(nid) 1 | 82 | #define node_has_online_mem(nid) 1 |
| 109 | 83 | ||