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

[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
......@@ -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
/**
......
......@@ -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, \
......
......@@ -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, \
}
......
......@@ -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, \
......
......@@ -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, \
......
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