From b8a543ea5a5896830a9969bacfd047f9d15940b2 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 15 Sep 2009 15:22:03 +0200 Subject: [PATCH] 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 LKML-Reference: Signed-off-by: Ingo Molnar --- arch/ia64/include/asm/topology.h | 4 ++-- arch/sh/include/asm/topology.h | 2 +- arch/sparc/include/asm/topology_64.h | 2 +- arch/x86/include/asm/topology.h | 4 +--- 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 42f1673..569b9da 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); .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 \ diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h index c843677..a8cc564 100644 --- a/arch/sh/include/asm/topology.h +++ b/arch/sh/include/asm/topology.h @@ -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 \ diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h index bc3a093..10b979d 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) .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 \ diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 7fafd1b..589f123 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[]; # 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 \ diff --git a/include/linux/topology.h b/include/linux/topology.h index 4298745..936ab2b 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -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 \ -- 2.7.4