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Commit 687f1661 authored by Nick Piggin's avatar Nick Piggin Committed by Linus Torvalds
Browse files

[PATCH] sched: sched tuning 



Do some basic initial tuning.

Signed-off-by: default avatarNick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 68767a0a

arch/ia64/kernel/domain.c

+1 −1
Original line number Diff line number Diff line
@@ -14,7 +14,7 @@ 
#include <linux/topology.h>

#include <linux/nodemask.h>



#define SD_NODES_PER_DOMAIN 6

#define SD_NODES_PER_DOMAIN 16



#ifdef CONFIG_NUMA

/**

include/asm-i386/topology.h

+1 −1
Original line number Diff line number Diff line
@@ -81,7 +81,7 @@ static inline int node_to_first_cpu(int node) 
	.per_cpu_gain		= 100,			\

	.flags			= SD_LOAD_BALANCE	\

				| SD_BALANCE_EXEC	\

				| SD_BALANCE_NEWIDLE	\

				| SD_BALANCE_FORK	\

				| SD_WAKE_BALANCE,	\

	.last_balance		= jiffies,		\

	.balance_interval	= 1,			\

include/asm-ia64/topology.h

+47 −14
Original line number Diff line number Diff line
@@ -42,25 +42,54 @@ 


void build_cpu_to_node_map(void);



#define SD_CPU_INIT (struct sched_domain) {		\

	.span			= CPU_MASK_NONE,	\

	.parent			= NULL,			\

	.groups			= NULL,			\

	.min_interval		= 1,			\

	.max_interval		= 4,			\

	.busy_factor		= 64,			\

	.imbalance_pct		= 125,			\

	.cache_hot_time		= (10*1000000),		\

	.per_cpu_gain		= 100,			\

	.cache_nice_tries	= 2,			\

	.busy_idx		= 2,			\

	.idle_idx		= 1,			\

	.newidle_idx		= 2,			\

	.wake_idx		= 1,			\

	.forkexec_idx		= 1,			\

	.flags			= SD_LOAD_BALANCE	\

				| SD_BALANCE_NEWIDLE	\

				| SD_BALANCE_EXEC	\

				| SD_WAKE_AFFINE,	\

	.last_balance		= jiffies,		\

	.balance_interval	= 1,			\

	.nr_balance_failed	= 0,			\

}



/* sched_domains SD_NODE_INIT for IA64 NUMA machines */

#define SD_NODE_INIT (struct sched_domain) {		\

	.span			= CPU_MASK_NONE,	\

	.parent			= NULL,			\

	.groups			= NULL,			\

	.min_interval		= 80,			\

	.max_interval		= 320,			\

	.busy_factor		= 320,			\

	.min_interval		= 8,			\

	.max_interval		= 8*(min(num_online_cpus(), 32)), \

	.busy_factor		= 64,			\

	.imbalance_pct		= 125,			\

	.cache_hot_time		= (10*1000000),		\

	.cache_nice_tries	= 1,			\

	.cache_nice_tries	= 2,			\

	.busy_idx		= 3,			\

	.idle_idx		= 2,			\

	.newidle_idx		= 0, /* unused */	\

	.wake_idx		= 1,			\

	.forkexec_idx		= 1,			\

	.per_cpu_gain		= 100,			\

	.flags			= SD_LOAD_BALANCE	\

				| SD_BALANCE_EXEC	\

				| SD_BALANCE_NEWIDLE	\

				| SD_WAKE_IDLE		\

				| SD_BALANCE_FORK	\

				| SD_WAKE_BALANCE,	\

	.last_balance		= jiffies,		\

	.balance_interval	= 1,			\

	.balance_interval	= 64,			\

	.nr_balance_failed	= 0,			\

}
@@ -69,17 +98,21 @@ void build_cpu_to_node_map(void); 
	.span			= CPU_MASK_NONE,	\

	.parent			= NULL,			\

	.groups			= NULL,			\

	.min_interval		= 80,			\

	.max_interval		= 320,			\

	.busy_factor		= 320,			\

	.imbalance_pct		= 125,			\

	.min_interval		= 64,			\

	.max_interval		= 64*num_online_cpus(),	\

	.busy_factor		= 128,			\

	.imbalance_pct		= 133,			\

	.cache_hot_time		= (10*1000000),		\

	.cache_nice_tries	= 1,			\

	.busy_idx		= 3,			\

	.idle_idx		= 3,			\

	.newidle_idx		= 0, /* unused */	\

	.wake_idx		= 0, /* unused */	\

	.forkexec_idx		= 0, /* unused */	\

	.per_cpu_gain		= 100,			\

	.flags			= SD_LOAD_BALANCE	\

				| SD_BALANCE_EXEC,	\

	.flags			= SD_LOAD_BALANCE,	\

	.last_balance		= jiffies,		\

	.balance_interval	= 100*(63+num_online_cpus())/64,   \

	.balance_interval	= 64,			\

	.nr_balance_failed	= 0,			\

}

include/asm-x86_64/topology.h

+1 −2
Original line number Diff line number Diff line
@@ -42,12 +42,11 @@ extern int __node_distance(int, int); 
	.cache_nice_tries	= 2,			\

	.busy_idx		= 3,			\

	.idle_idx		= 2,			\

	.newidle_idx		= 1, 			\

	.newidle_idx		= 0, 			\

	.wake_idx		= 1,			\

	.forkexec_idx		= 1,			\

	.per_cpu_gain		= 100,			\

	.flags			= SD_LOAD_BALANCE	\

				| SD_BALANCE_NEWIDLE	\

				| SD_BALANCE_FORK	\

				| SD_BALANCE_EXEC	\

				| SD_WAKE_BALANCE,	\

include/linux/topology.h

+5 −6
Original line number Diff line number Diff line
@@ -91,7 +91,7 @@ 
	.per_cpu_gain		= 25,			\

	.busy_idx		= 0,			\

	.idle_idx		= 0,			\

	.newidle_idx		= 0,			\

	.newidle_idx		= 1,			\

	.wake_idx		= 0,			\

	.forkexec_idx		= 0,			\

	.flags			= SD_LOAD_BALANCE	\
@@ -121,15 +121,14 @@ 
	.cache_nice_tries	= 1,			\

	.per_cpu_gain		= 100,			\

	.busy_idx		= 2,			\

	.idle_idx		= 0,			\

	.newidle_idx		= 1,			\

	.idle_idx		= 1,			\

	.newidle_idx		= 2,			\

	.wake_idx		= 1,			\

	.forkexec_idx		= 0,			\

	.forkexec_idx		= 1,			\

	.flags			= SD_LOAD_BALANCE	\

				| SD_BALANCE_NEWIDLE	\

				| SD_BALANCE_EXEC	\

				| SD_WAKE_AFFINE	\

				| SD_WAKE_BALANCE,	\

				| SD_WAKE_AFFINE,	\

	.last_balance		= jiffies,		\

	.balance_interval	= 1,			\

	.nr_balance_failed	= 0,			\