diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-09-15 09:22:03 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-09-15 10:51:23 -0400 |
| commit | b8a543ea5a5896830a9969bacfd047f9d15940b2 (patch) | |
| tree | 45bae76596f2a51f3cc79d55c9c4e0da064a7a2c | |
| parent | 0ec9fab3d186d9cbb00c0f694d4a260d07c198d9 (diff) | |
sched: Reduce forkexec_idx
If we're looking to place a new task, we might as well find the
idlest position _now_, not 1 tick ago.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/ia64/include/asm/topology.h | 4 | ||||
| -rw-r--r-- | arch/sh/include/asm/topology.h | 2 | ||||
| -rw-r--r-- | arch/sparc/include/asm/topology_64.h | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/topology.h | 4 | ||||
| -rw-r--r-- | include/linux/topology.h | 4 |
5 files changed, 7 insertions, 9 deletions
diff --git a/arch/ia64/include/asm/topology.h b/arch/ia64/include/asm/topology.h index 42f1673ec83f..569b9dafc78c 100644 --- a/arch/ia64/include/asm/topology.h +++ b/arch/ia64/include/asm/topology.h | |||
| @@ -63,7 +63,7 @@ void build_cpu_to_node_map(void); | |||
| 63 | .idle_idx = 1, \ | 63 | .idle_idx = 1, \ |
| 64 | .newidle_idx = 0, \ | 64 | .newidle_idx = 0, \ |
| 65 | .wake_idx = 0, \ | 65 | .wake_idx = 0, \ |
| 66 | .forkexec_idx = 1, \ | 66 | .forkexec_idx = 0, \ |
| 67 | .flags = SD_LOAD_BALANCE \ | 67 | .flags = SD_LOAD_BALANCE \ |
| 68 | | SD_BALANCE_NEWIDLE \ | 68 | | SD_BALANCE_NEWIDLE \ |
| 69 | | SD_BALANCE_EXEC \ | 69 | | SD_BALANCE_EXEC \ |
| @@ -89,7 +89,7 @@ void build_cpu_to_node_map(void); | |||
| 89 | .idle_idx = 2, \ | 89 | .idle_idx = 2, \ |
| 90 | .newidle_idx = 0, \ | 90 | .newidle_idx = 0, \ |
| 91 | .wake_idx = 0, \ | 91 | .wake_idx = 0, \ |
| 92 | .forkexec_idx = 1, \ | 92 | .forkexec_idx = 0, \ |
| 93 | .flags = SD_LOAD_BALANCE \ | 93 | .flags = SD_LOAD_BALANCE \ |
| 94 | | SD_BALANCE_NEWIDLE \ | 94 | | SD_BALANCE_NEWIDLE \ |
| 95 | | SD_BALANCE_EXEC \ | 95 | | SD_BALANCE_EXEC \ |
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h index c8436771e31d..a8cc564b703d 100644 --- a/arch/sh/include/asm/topology.h +++ b/arch/sh/include/asm/topology.h | |||
| @@ -17,7 +17,7 @@ | |||
| 17 | .idle_idx = 2, \ | 17 | .idle_idx = 2, \ |
| 18 | .newidle_idx = 0, \ | 18 | .newidle_idx = 0, \ |
| 19 | .wake_idx = 0, \ | 19 | .wake_idx = 0, \ |
| 20 | .forkexec_idx = 1, \ | 20 | .forkexec_idx = 0, \ |
| 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 \ |
diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h index bc3a0930ed64..10b979d1de20 100644 --- a/arch/sparc/include/asm/topology_64.h +++ b/arch/sparc/include/asm/topology_64.h | |||
| @@ -53,7 +53,7 @@ static inline int pcibus_to_node(struct pci_bus *pbus) | |||
| 53 | .idle_idx = 2, \ | 53 | .idle_idx = 2, \ |
| 54 | .newidle_idx = 0, \ | 54 | .newidle_idx = 0, \ |
| 55 | .wake_idx = 0, \ | 55 | .wake_idx = 0, \ |
| 56 | .forkexec_idx = 1, \ | 56 | .forkexec_idx = 0, \ |
| 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 \ |
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 7fafd1bc4149..589f12383d78 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h | |||
| @@ -116,13 +116,11 @@ extern unsigned long node_remap_size[]; | |||
| 116 | 116 | ||
| 117 | # define SD_CACHE_NICE_TRIES 1 | 117 | # define SD_CACHE_NICE_TRIES 1 |
| 118 | # define SD_IDLE_IDX 1 | 118 | # define SD_IDLE_IDX 1 |
| 119 | # define SD_FORKEXEC_IDX 0 | ||
| 120 | 119 | ||
| 121 | #else | 120 | #else |
| 122 | 121 | ||
| 123 | # define SD_CACHE_NICE_TRIES 2 | 122 | # define SD_CACHE_NICE_TRIES 2 |
| 124 | # define SD_IDLE_IDX 2 | 123 | # define SD_IDLE_IDX 2 |
| 125 | # define SD_FORKEXEC_IDX 1 | ||
| 126 | 124 | ||
| 127 | #endif | 125 | #endif |
| 128 | 126 | ||
| @@ -137,7 +135,7 @@ extern unsigned long node_remap_size[]; | |||
| 137 | .idle_idx = SD_IDLE_IDX, \ | 135 | .idle_idx = SD_IDLE_IDX, \ |
| 138 | .newidle_idx = 0, \ | 136 | .newidle_idx = 0, \ |
| 139 | .wake_idx = 0, \ | 137 | .wake_idx = 0, \ |
| 140 | .forkexec_idx = SD_FORKEXEC_IDX, \ | 138 | .forkexec_idx = 0, \ |
| 141 | \ | 139 | \ |
| 142 | .flags = 1*SD_LOAD_BALANCE \ | 140 | .flags = 1*SD_LOAD_BALANCE \ |
| 143 | | 1*SD_BALANCE_NEWIDLE \ | 141 | | 1*SD_BALANCE_NEWIDLE \ |
diff --git a/include/linux/topology.h b/include/linux/topology.h index 4298745615a5..936ab2b37683 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h | |||
| @@ -121,7 +121,7 @@ int arch_update_cpu_topology(void); | |||
| 121 | .cache_nice_tries = 1, \ | 121 | .cache_nice_tries = 1, \ |
| 122 | .busy_idx = 2, \ | 122 | .busy_idx = 2, \ |
| 123 | .wake_idx = 0, \ | 123 | .wake_idx = 0, \ |
| 124 | .forkexec_idx = 1, \ | 124 | .forkexec_idx = 0, \ |
| 125 | \ | 125 | \ |
| 126 | .flags = 1*SD_LOAD_BALANCE \ | 126 | .flags = 1*SD_LOAD_BALANCE \ |
| 127 | | 1*SD_BALANCE_NEWIDLE \ | 127 | | 1*SD_BALANCE_NEWIDLE \ |
| @@ -153,7 +153,7 @@ int arch_update_cpu_topology(void); | |||
| 153 | .idle_idx = 1, \ | 153 | .idle_idx = 1, \ |
| 154 | .newidle_idx = 0, \ | 154 | .newidle_idx = 0, \ |
| 155 | .wake_idx = 0, \ | 155 | .wake_idx = 0, \ |
| 156 | .forkexec_idx = 1, \ | 156 | .forkexec_idx = 0, \ |
| 157 | \ | 157 | \ |
| 158 | .flags = 1*SD_LOAD_BALANCE \ | 158 | .flags = 1*SD_LOAD_BALANCE \ |
| 159 | | 1*SD_BALANCE_NEWIDLE \ | 159 | | 1*SD_BALANCE_NEWIDLE \ |