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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-09-16 07:24:49 -0400
committerIngo Molnar <mingo@elte.hu>2009-09-16 10:44:33 -0400
commit182a85f8a119c789610a9d464f4129ded9f3c107 (patch)
treeffc36e5049895bf85543ba8d0225805e15fe8d92
parent5a9b86f647a56862cdc0a1362bfb015ae921af7f (diff)
sched: Disable wakeup balancing
Sysbench thinks SD_BALANCE_WAKE is too agressive and kbuild doesn't really mind too much, SD_BALANCE_NEWIDLE picks up most of the slack. On a dual socket, quad core, dual thread nehalem system: sysbench (--num_threads=16): SD_BALANCE_WAKE-: 13982 tx/s SD_BALANCE_WAKE+: 15688 tx/s kbuild (-j16): SD_BALANCE_WAKE-: 47.648295846 seconds time elapsed ( +- 0.312% ) SD_BALANCE_WAKE+: 47.608607360 seconds time elapsed ( +- 0.026% ) (same within noise) Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat
-rw-r--r--arch/ia64/include/asm/topology.h2
-rw-r--r--arch/mips/include/asm/mach-ip27/topology.h1
-rw-r--r--arch/powerpc/include/asm/topology.h1
-rw-r--r--arch/sh/include/asm/topology.h1
-rw-r--r--arch/sparc/include/asm/topology_64.h1
-rw-r--r--arch/x86/include/asm/topology.h2
-rw-r--r--include/linux/topology.h6
7 files changed, 4 insertions, 10 deletions
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h
index 569b9dafc78c..d0141fbf51d0 100644
--- a/arch/ia64/include/asm/topology.h
+++ b/arch/ia64/include/asm/topology.h
@@ -68,7 +68,6 @@ void build_cpu_to_node_map(void);
68 | SD_BALANCE_NEWIDLE \ 68 | SD_BALANCE_NEWIDLE \
69 | SD_BALANCE_EXEC \ 69 | SD_BALANCE_EXEC \
70 | SD_BALANCE_FORK \ 70 | SD_BALANCE_FORK \
71 | SD_BALANCE_WAKE \
72 | SD_WAKE_AFFINE, \ 71 | SD_WAKE_AFFINE, \
73 .last_balance = jiffies, \ 72 .last_balance = jiffies, \
74 .balance_interval = 1, \ 73 .balance_interval = 1, \
@@ -94,7 +93,6 @@ void build_cpu_to_node_map(void);
94 | SD_BALANCE_NEWIDLE \ 93 | SD_BALANCE_NEWIDLE \
95 | SD_BALANCE_EXEC \ 94 | SD_BALANCE_EXEC \
96 | SD_BALANCE_FORK \ 95 | SD_BALANCE_FORK \
97 | SD_BALANCE_WAKE \
98 | SD_SERIALIZE, \ 96 | SD_SERIALIZE, \
99 .last_balance = jiffies, \ 97 .last_balance = jiffies, \
100 .balance_interval = 64, \ 98 .balance_interval = 64, \
diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h
index d8332398f5be..230591707005 100644
--- a/arch/mips/include/asm/mach-ip27/topology.h
+++ b/arch/mips/include/asm/mach-ip27/topology.h
@@ -48,7 +48,6 @@ extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
48 .cache_nice_tries = 1, \ 48 .cache_nice_tries = 1, \
49 .flags = SD_LOAD_BALANCE \ 49 .flags = SD_LOAD_BALANCE \
50 | SD_BALANCE_EXEC \ 50 | SD_BALANCE_EXEC \
51 | SD_BALANCE_WAKE, \
52 .last_balance = jiffies, \ 51 .last_balance = jiffies, \
53 .balance_interval = 1, \ 52 .balance_interval = 1, \
54 .nr_balance_failed = 0, \ 53 .nr_balance_failed = 0, \
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index 1a2c9eb42a03..394edcbcce71 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -63,7 +63,6 @@ static inline int pcibus_to_node(struct pci_bus *bus)
63 | SD_BALANCE_EXEC \ 63 | SD_BALANCE_EXEC \
64 | SD_BALANCE_FORK \ 64 | SD_BALANCE_FORK \
65 | SD_BALANCE_NEWIDLE \ 65 | SD_BALANCE_NEWIDLE \
66 | SD_BALANCE_WAKE \
67 | SD_SERIALIZE, \ 66 | SD_SERIALIZE, \
68 .last_balance = jiffies, \ 67 .last_balance = jiffies, \
69 .balance_interval = 1, \ 68 .balance_interval = 1, \
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index a8cc564b703d..f8c40cc65054 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -21,7 +21,6 @@
21 .flags = SD_LOAD_BALANCE \ 21 .flags = SD_LOAD_BALANCE \
22 | SD_BALANCE_FORK \ 22 | SD_BALANCE_FORK \
23 | SD_BALANCE_EXEC \ 23 | SD_BALANCE_EXEC \
24 | SD_BALANCE_WAKE \
25 | SD_BALANCE_NEWIDLE \ 24 | SD_BALANCE_NEWIDLE \
26 | SD_SERIALIZE, \ 25 | SD_SERIALIZE, \
27 .last_balance = jiffies, \ 26 .last_balance = jiffies, \
diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h
index 10b979d1de20..26cd25c08399 100644
--- a/arch/sparc/include/asm/topology_64.h
+++ b/arch/sparc/include/asm/topology_64.h
@@ -57,7 +57,6 @@ static inline int pcibus_to_node(struct pci_bus *pbus)
57 .flags = SD_LOAD_BALANCE \ 57 .flags = SD_LOAD_BALANCE \
58 | SD_BALANCE_FORK \ 58 | SD_BALANCE_FORK \
59 | SD_BALANCE_EXEC \ 59 | SD_BALANCE_EXEC \
60 | SD_BALANCE_WAKE \
61 | SD_SERIALIZE, \ 60 | SD_SERIALIZE, \
62 .last_balance = jiffies, \ 61 .last_balance = jiffies, \
63 .balance_interval = 1, \ 62 .balance_interval = 1, \
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 589f12383d78..6f0695d744bf 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -141,7 +141,7 @@ extern unsigned long node_remap_size[];
141 | 1*SD_BALANCE_NEWIDLE \ 141 | 1*SD_BALANCE_NEWIDLE \
142 | 1*SD_BALANCE_EXEC \ 142 | 1*SD_BALANCE_EXEC \
143 | 1*SD_BALANCE_FORK \ 143 | 1*SD_BALANCE_FORK \
144 | 1*SD_BALANCE_WAKE \ 144 | 0*SD_BALANCE_WAKE \
145 | 1*SD_WAKE_AFFINE \ 145 | 1*SD_WAKE_AFFINE \
146 | 0*SD_SHARE_CPUPOWER \ 146 | 0*SD_SHARE_CPUPOWER \
147 | 0*SD_POWERSAVINGS_BALANCE \ 147 | 0*SD_POWERSAVINGS_BALANCE \
diff --git a/include/linux/topology.h b/include/linux/topology.h
index a6614b0242a9..809b26c07090 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -95,7 +95,7 @@ int arch_update_cpu_topology(void);
95 | 1*SD_BALANCE_NEWIDLE \ 95 | 1*SD_BALANCE_NEWIDLE \
96 | 1*SD_BALANCE_EXEC \ 96 | 1*SD_BALANCE_EXEC \
97 | 1*SD_BALANCE_FORK \ 97 | 1*SD_BALANCE_FORK \
98 | 1*SD_BALANCE_WAKE \ 98 | 0*SD_BALANCE_WAKE \
99 | 1*SD_WAKE_AFFINE \ 99 | 1*SD_WAKE_AFFINE \
100 | 1*SD_SHARE_CPUPOWER \ 100 | 1*SD_SHARE_CPUPOWER \
101 | 0*SD_POWERSAVINGS_BALANCE \ 101 | 0*SD_POWERSAVINGS_BALANCE \
@@ -127,7 +127,7 @@ int arch_update_cpu_topology(void);
127 | 1*SD_BALANCE_NEWIDLE \ 127 | 1*SD_BALANCE_NEWIDLE \
128 | 1*SD_BALANCE_EXEC \ 128 | 1*SD_BALANCE_EXEC \
129 | 1*SD_BALANCE_FORK \ 129 | 1*SD_BALANCE_FORK \
130 | 1*SD_BALANCE_WAKE \ 130 | 0*SD_BALANCE_WAKE \
131 | 1*SD_WAKE_AFFINE \ 131 | 1*SD_WAKE_AFFINE \
132 | 1*SD_PREFER_LOCAL \ 132 | 1*SD_PREFER_LOCAL \
133 | 0*SD_SHARE_CPUPOWER \ 133 | 0*SD_SHARE_CPUPOWER \
@@ -160,7 +160,7 @@ int arch_update_cpu_topology(void);
160 | 1*SD_BALANCE_NEWIDLE \ 160 | 1*SD_BALANCE_NEWIDLE \
161 | 1*SD_BALANCE_EXEC \ 161 | 1*SD_BALANCE_EXEC \
162 | 1*SD_BALANCE_FORK \ 162 | 1*SD_BALANCE_FORK \
163 | 1*SD_BALANCE_WAKE \ 163 | 0*SD_BALANCE_WAKE \
164 | 1*SD_WAKE_AFFINE \ 164 | 1*SD_WAKE_AFFINE \
165 | 1*SD_PREFER_LOCAL \ 165 | 1*SD_PREFER_LOCAL \
166 | 0*SD_SHARE_CPUPOWER \ 166 | 0*SD_SHARE_CPUPOWER \
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-22 07:59:03 -0500