sched: Reduce forkexec_idx
Peter Zijlstra [Tue, 15 Sep 2009 13:22:03 +0000 (15:22 +0200)]
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>

arch/ia64/include/asm/topology.h
arch/sh/include/asm/topology.h
arch/sparc/include/asm/topology_64.h
arch/x86/include/asm/topology.h
include/linux/topology.h

index 42f1673..569b9da 100644 (file)
@@ -63,7 +63,7 @@ void build_cpu_to_node_map(void);
        .idle_idx               = 1,                    \
        .newidle_idx            = 0,                    \
        .wake_idx               = 0,                    \
-       .forkexec_idx           = 1,                    \
+       .forkexec_idx           = 0,                    \
        .flags                  = SD_LOAD_BALANCE       \
                                | SD_BALANCE_NEWIDLE    \
                                | SD_BALANCE_EXEC       \
@@ -89,7 +89,7 @@ void build_cpu_to_node_map(void);
        .idle_idx               = 2,                    \
        .newidle_idx            = 0,                    \
        .wake_idx               = 0,                    \
-       .forkexec_idx           = 1,                    \
+       .forkexec_idx           = 0,                    \
        .flags                  = SD_LOAD_BALANCE       \
                                | SD_BALANCE_NEWIDLE    \
                                | SD_BALANCE_EXEC       \
index c843677..a8cc564 100644 (file)
@@ -17,7 +17,7 @@
        .idle_idx               = 2,                    \
        .newidle_idx            = 0,                    \
        .wake_idx               = 0,                    \
-       .forkexec_idx           = 1,                    \
+       .forkexec_idx           = 0,                    \
        .flags                  = SD_LOAD_BALANCE       \
                                | SD_BALANCE_FORK       \
                                | SD_BALANCE_EXEC       \
index bc3a093..10b979d 100644 (file)
@@ -53,7 +53,7 @@ static inline int pcibus_to_node(struct pci_bus *pbus)
        .idle_idx               = 2,                    \
        .newidle_idx            = 0,                    \
        .wake_idx               = 0,                    \
-       .forkexec_idx           = 1,                    \
+       .forkexec_idx           = 0,                    \
        .flags                  = SD_LOAD_BALANCE       \
                                | SD_BALANCE_FORK       \
                                | SD_BALANCE_EXEC       \
index 7fafd1b..589f123 100644 (file)
@@ -116,13 +116,11 @@ extern unsigned long node_remap_size[];
 
 # define SD_CACHE_NICE_TRIES   1
 # define SD_IDLE_IDX           1
-# define SD_FORKEXEC_IDX       0
 
 #else
 
 # define SD_CACHE_NICE_TRIES   2
 # define SD_IDLE_IDX           2
-# define SD_FORKEXEC_IDX       1
 
 #endif
 
@@ -137,7 +135,7 @@ extern unsigned long node_remap_size[];
        .idle_idx               = SD_IDLE_IDX,                          \
        .newidle_idx            = 0,                                    \
        .wake_idx               = 0,                                    \
-       .forkexec_idx           = SD_FORKEXEC_IDX,                      \
+       .forkexec_idx           = 0,                                    \
                                                                        \
        .flags                  = 1*SD_LOAD_BALANCE                     \
                                | 1*SD_BALANCE_NEWIDLE                  \
index 4298745..936ab2b 100644 (file)
@@ -121,7 +121,7 @@ int arch_update_cpu_topology(void);
        .cache_nice_tries       = 1,                                    \
        .busy_idx               = 2,                                    \
        .wake_idx               = 0,                                    \
-       .forkexec_idx           = 1,                                    \
+       .forkexec_idx           = 0,                                    \
                                                                        \
        .flags                  = 1*SD_LOAD_BALANCE                     \
                                | 1*SD_BALANCE_NEWIDLE                  \
@@ -153,7 +153,7 @@ int arch_update_cpu_topology(void);
        .idle_idx               = 1,                                    \
        .newidle_idx            = 0,                                    \
        .wake_idx               = 0,                                    \
-       .forkexec_idx           = 1,                                    \
+       .forkexec_idx           = 0,                                    \
                                                                        \
        .flags                  = 1*SD_LOAD_BALANCE                     \
                                | 1*SD_BALANCE_NEWIDLE                  \