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783609c6cb
linux/kernel
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Siddha, Suresh B 783609c6cb [PATCH] sched: decrease number of load balances 
Currently at a particular domain, each cpu in the sched group will do a
load balance at the frequency of balance_interval.  More the cores and
threads, more the cpus will be in each sched group at SMP and NUMA domain.
And we endup spending quite a bit of time doing load balancing in those
domains.

Fix this by making only one cpu(first idle cpu or first cpu in the group if
all the cpus are busy) in the sched group do the load balance at that
particular sched domain and this load will slowly percolate down to the
other cpus with in that group(when they do load balancing at lower
domains).

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10 09:55:43 -08:00
..
irq [PATCH] CPEI gets warning at kernel/irq/migration.c:27/move_masked_irq() 2006-12-08 08:28:37 -08:00
power [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
time
.gitignore
acct.c [PATCH] kernel: change uses of f_{dentry, vfsmnt} to use f_path 2006-12-08 08:28:42 -08:00
audit.c [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
audit.h
auditfilter.c [PATCH] kernel core: replace kmalloc+memset with kzalloc 2006-12-07 08:39:41 -08:00
auditsc.c [PATCH] struct path: convert kernel 2006-12-08 08:28:46 -08:00
capability.c
compat.c
configs.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
cpu.c [PATCH] suspend: don't change cpus_allowed for task initiating the suspend 2006-12-07 08:39:28 -08:00
cpuset.c [PATCH] struct path: convert kernel 2006-12-08 08:28:46 -08:00
delayacct.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
dma.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
exec_domain.c
exit.c [PATCH] session_of_pgrp: kill unnecessary do_each_task_pid(PIDTYPE_PGID) 2006-12-08 08:28:52 -08:00
extable.c
fork.c [PATCH] io-accounting: core statistics 2006-12-10 09:55:41 -08:00
futex_compat.c
futex.c [PATCH] kernel: change uses of f_{dentry, vfsmnt} to use f_path 2006-12-08 08:28:42 -08:00
hrtimer.c
itimer.c
kallsyms.c [PATCH] move kallsyms data to .rodata 2006-12-08 08:28:37 -08:00
Kconfig.hz [PATCH] HZ: 300Hz support 2006-12-07 08:39:36 -08:00
Kconfig.preempt
kexec.c Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6 2006-12-07 15:39:22 -08:00
kfifo.c
kmod.c [PATCH] rename struct namespace to struct mnt_namespace 2006-12-08 08:28:51 -08:00
kprobes.c [PATCH] kprobes: enable booster on the preemptible kernel 2006-12-07 08:39:38 -08:00
ksysfs.c
kthread.c
latency.c
lockdep_internals.h [PATCH] lockdep: more chains 2006-12-07 08:39:43 -08:00
lockdep_proc.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
lockdep.c Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2006-12-07 08:59:11 -08:00
Makefile
module.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
mutex-debug.c [PATCH] lockdep: show more details about self-test failures 2006-12-07 08:39:43 -08:00
mutex-debug.h
mutex.c [PATCH] lockdep: avoid lockdep warning in md 2006-12-08 08:28:39 -08:00
mutex.h
nsproxy.c [PATCH] to nsproxy 2006-12-08 08:28:52 -08:00
panic.c
params.c
pid.c [PATCH] add child reaper to pid_namespace 2006-12-08 08:28:52 -08:00
posix-cpu-timers.c
posix-timers.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
printk.c [PATCH] add ignore_loglevel boot option 2006-12-07 08:39:47 -08:00
profile.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
ptrace.c
rcupdate.c [PATCH] rcu: add a prefetch() in rcu_do_batch() 2006-12-07 08:39:40 -08:00
rcutorture.c [PATCH] Add Sparse annotations to SRCU wrapper functions in rcutorture 2006-12-07 08:39:44 -08:00
relay.c [PATCH] kernel: change uses of f_{dentry, vfsmnt} to use f_path 2006-12-08 08:28:42 -08:00
resource.c [PATCH] struct seq_operations and struct file_operations constification 2006-12-07 08:39:46 -08:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
rtmutex.c
rtmutex.h
rwsem.c
sched.c [PATCH] sched: decrease number of load balances 2006-12-10 09:55:43 -08:00
seccomp.c
signal.c [PATCH] add child reaper to pid_namespace 2006-12-08 08:28:52 -08:00
softirq.c [PATCH] softirq: remove BUG_ONs which can incorrectly trigger 2006-12-07 08:39:43 -08:00
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c [PATCH] sys_setpgid: eliminate unnecessary do_each_task_pid(PIDTYPE_PGID) 2006-12-08 08:28:52 -08:00
sysctl.c [PATCH] sysctl: remove unused "context" param 2006-12-10 09:55:41 -08:00
taskstats.c [PATCH] taskstats: cleanup reply assembling 2006-12-07 08:39:34 -08:00
time.c
timer.c
tsacct.c [PATCH] io-accounting: via taskstats 2006-12-10 09:55:41 -08:00
uid16.c
unwind.c [PATCH] unwinder: move .eh_frame to RODATA 2006-12-07 02:14:19 +01:00
user.c [PATCH] slab: remove kmem_cache_t 2006-12-07 08:39:25 -08:00
utsname.c
wait.c
workqueue.c [PATCH] WorkStruct: Use direct assignment rather than cmpxchg() 2006-12-09 12:25:08 -08:00