Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Paul Jackson 029190c515 cpuset sched_load_balance flag ... Add a new per-cpuset flag called 'sched_load_balance'. When enabled in a cpuset (the default value) it tells the kernel scheduler that the scheduler should provide the normal load balancing on the CPUs in that cpuset, sometimes moving tasks from one CPU to a second CPU if the second CPU is less loaded and if that task is allowed to run there. When disabled (write "0" to the file) then it tells the kernel scheduler that load balancing is not required for the CPUs in that cpuset. Now even if this flag is disabled for some cpuset, the kernel may still have to load balance some or all the CPUs in that cpuset, if some overlapping cpuset has its sched_load_balance flag enabled. If there are some CPUs that are not in any cpuset whose sched_load_balance flag is enabled, the kernel scheduler will not load balance tasks to those CPUs. Moreover the kernel will partition the 'sched domains' (non-overlapping sets of CPUs over which load balancing is attempted) into the finest granularity partition that it can find, while still keeping any two CPUs that are in the same shed_load_balance enabled cpuset in the same element of the partition. This serves two purposes: 1) It provides a mechanism for real time isolation of some CPUs, and 2) it can be used to improve performance on systems with many CPUs by supporting configurations in which load balancing is not done across all CPUs at once, but rather only done in several smaller disjoint sets of CPUs. This mechanism replaces the earlier overloading of the per-cpuset flag 'cpu_exclusive', which overloading was removed in an earlier patch: cpuset-remove-sched-domain-hooks-from-cpusets See further the Documentation and comments in the code itself. [akpm@linux-foundation.org: don't be weird] Signed-off-by: Paul Jackson <pj@sgi.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-10-19 11:53:41 -07:00
..
irq	Compile handle_percpu_irq even for uniprocessor kernels	2007-10-17 08:43:00 -07:00
power	Hibernation: Enter platform hibernation state in a consistent way	2007-10-18 14:37:20 -07:00
time	kernel/time/clocksource.c: Use list_for_each_entry instead of list_for_each	2007-10-19 11:53:38 -07:00
.gitignore
acct.c	whitespace fixes: process accounting	2007-10-18 14:37:24 -07:00
audit.c	whitespace fixes: system auditing	2007-10-18 14:37:25 -07:00
audit.h	Audit: add TTY input auditing	2007-07-16 09:05:47 -07:00
auditfilter.c	whitespace fixes: audit filtering	2007-10-18 14:37:24 -07:00
auditsc.c	whitespace fixes: syscall auditing	2007-10-18 14:37:25 -07:00
capability.c	Uninline find_pid etc set of functions	2007-10-19 11:53:41 -07:00
cgroup.c	Add cgroupstats	2007-10-19 11:53:36 -07:00
cgroup_debug.c	Task Control Groups: simple task cgroup debug info subsystem	2007-10-19 11:53:36 -07:00
compat.c	Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-hrt	2007-10-18 15:12:41 -07:00
configs.c
cpu.c	cpu hotplug: cpu: deliver CPU_UP_CANCELED only to NOTIFY_OKed callbacks with CPU_UP_PREPARE	2007-10-18 14:37:21 -07:00
cpu_acct.c	Task Control Groups: example CPU accounting subsystem	2007-10-19 11:53:36 -07:00
cpuset.c	cpuset sched_load_balance flag	2007-10-19 11:53:41 -07:00
delayacct.c	Add scaled time to taskstats based process accounting	2007-10-18 14:37:28 -07:00
dma.c	whitespace fixes: DMA channel allocator	2007-10-18 14:37:24 -07:00
exec_domain.c	whitespace fixes: execution domains	2007-10-18 14:37:26 -07:00
exit.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
extable.c
fork.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
futex.c	Uninline find_task_by_xxx set of functions	2007-10-19 11:53:40 -07:00
futex_compat.c	Uninline find_task_by_xxx set of functions	2007-10-19 11:53:40 -07:00
hrtimer.c	hrtimer: Rework hrtimer_nanosleep to make sys_compat_nanosleep easier	2007-10-18 22:54:18 +02:00
itimer.c	whitespace fixes: interval timers	2007-10-18 14:37:26 -07:00
kallsyms.c	kallsyms: make KSYM_NAME_LEN include space for trailing '\0'	2007-07-17 10:23:03 -07:00
Kconfig.hz
Kconfig.preempt	Move PREEMPT_NOTIFIERS into an always-included Kconfig	2007-10-17 08:42:55 -07:00
kexec.c	pid namespaces: define is_global_init() and is_container_init()	2007-10-19 11:53:37 -07:00
kfifo.c	is_power_of_2: kernel/kfifo.c	2007-07-16 09:05:50 -07:00
kmod.c	Restore call_usermodehelper_pipe() behaviour	2007-09-11 17:21:20 -07:00
kprobes.c	kprobes: support kretprobe blacklist	2007-10-16 09:43:10 -07:00
ksysfs.c	add-vmcore: cleanup the coding style according to Andrew's comments	2007-10-17 08:42:54 -07:00
kthread.c	kthread: silence bogus section mismatch warning	2007-07-31 15:39:42 -07:00
latency.c
lockdep.c	workqueue: debug flushing deadlocks with lockdep	2007-10-19 11:53:38 -07:00
lockdep_internals.h
lockdep_proc.c	lockdep: Avoid /proc/lockdep & lock_stat infinite output	2007-10-11 22:11:11 +02:00
Makefile	cgroups: implement namespace tracking subsystem	2007-10-19 11:53:37 -07:00
module.c	whitespace fixes: module loading	2007-10-18 14:37:25 -07:00
mutex-debug.c
mutex-debug.h
mutex.c	lockdep: fixup mutex annotations	2007-10-11 22:11:12 +02:00
mutex.h
notifier.c	Add kernel/notifier.c	2007-10-19 11:53:34 -07:00
ns_cgroup.c	cgroups: implement namespace tracking subsystem	2007-10-19 11:53:37 -07:00
nsproxy.c	pid namespaces: allow cloning of new namespace	2007-10-19 11:53:39 -07:00
panic.c	whitespace fixes: panic handling	2007-10-18 14:37:25 -07:00
params.c	param_sysfs_builtin memchr argument fix	2007-10-18 14:37:21 -07:00
pid.c	Uninline the task_xid_nr_ns() calls	2007-10-19 11:53:41 -07:00
posix-cpu-timers.c	Isolate some explicit usage of task->tgid	2007-10-19 11:53:40 -07:00
posix-timers.c	Isolate some explicit usage of task->tgid	2007-10-19 11:53:40 -07:00
printk.c	serial: turn serial console suspend a boot rather than compile time option	2007-10-18 14:37:19 -07:00
profile.c	make kernel/profile.c:time_hook static	2007-10-17 08:42:55 -07:00
ptrace.c	Isolate some explicit usage of task->tgid	2007-10-19 11:53:40 -07:00
rcupdate.c	Clean up duplicate includes in kernel/	2007-10-17 08:42:48 -07:00
rcutorture.c	Make rcutorture RNG use temporal entropy	2007-10-17 08:42:53 -07:00
relay.c	whitespace fixes: relayfs	2007-10-18 14:37:24 -07:00
resource.c	memory unplug: memory hotplug cleanup	2007-10-16 09:43:01 -07:00
rtmutex-debug.c	kernel/rtmutex-debug.c: cleanups	2007-10-17 08:42:50 -07:00
rtmutex-debug.h
rtmutex-tester.c	Freezer: make kernel threads nonfreezable by default	2007-07-17 10:23:02 -07:00
rtmutex.c	FUTEX: Tidy up the code	2007-07-16 09:05:49 -07:00
rtmutex.h
rtmutex_common.h	FUTEX: Tidy up the code	2007-07-16 09:05:49 -07:00
rwsem.c	lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex	2007-07-19 10:04:49 -07:00
sched.c	cpuset sched_load_balance flag	2007-10-19 11:53:41 -07:00
sched_debug.c	sched: reduce schedstat variable overhead a bit	2007-10-18 21:32:56 +02:00
sched_fair.c	sched: fix new task startup crash	2007-10-17 16:55:11 +02:00
sched_idletask.c	sched: mark scheduling classes as const	2007-10-15 17:00:12 +02:00
sched_rt.c	sched: tidy up SCHED_RR	2007-10-15 17:00:13 +02:00
sched_stats.h	sched: reduce schedstat variable overhead a bit	2007-10-18 21:32:56 +02:00
seccomp.c	make seccomp zerocost in schedule	2007-07-16 09:05:50 -07:00
signal.c	Isolate some explicit usage of task->tgid	2007-10-19 11:53:40 -07:00
softirq.c	[KERNEL]: Unexport raise_softirq_irqoff	2007-10-10 16:49:18 -07:00
softlockup.c	softlockup: add a /proc tuning parameter	2007-10-17 08:42:47 -07:00
spinlock.c	lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex	2007-07-19 10:04:49 -07:00
srcu.c
stacktrace.c
stop_machine.c	Fix stop_machine_run problem with naughty real time process	2007-07-16 09:05:41 -07:00
sys.c	Uninline find_task_by_xxx set of functions	2007-10-19 11:53:40 -07:00
sys_ni.c	kernel/sys_ni.c: add dummy sys_ni_syscall() prototype	2007-10-17 08:42:55 -07:00
sysctl.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
sysctl_check.c	V3 file capabilities: alter behavior of cap_setpcap	2007-10-18 14:37:24 -07:00
taskstats.c	Add cgroupstats	2007-10-19 11:53:36 -07:00
time.c	whitespace fixes: time syscalls	2007-10-18 14:37:24 -07:00
timer.c	pid namespaces: changes to show virtual ids to user	2007-10-19 11:53:40 -07:00
tsacct.c	Add scaled time to taskstats based process accounting	2007-10-18 14:37:28 -07:00
uid16.c
user.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched	2007-10-17 09:11:18 -07:00
user_namespace.c	Fix user namespace exiting OOPs	2007-09-19 11:24:18 -07:00
utsname.c	Fix UTS corruption during clone(CLONE_NEWUTS)	2007-09-19 11:24:17 -07:00
utsname_sysctl.c	remove CONFIG_UTS_NS and CONFIG_IPC_NS	2007-07-16 09:05:47 -07:00
wait.c
workqueue.c	workqueue: debug flushing deadlocks with lockdep	2007-10-19 11:53:38 -07:00