Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Gregory Haskins 318e0893ce sched: pre-route RT tasks on wakeup ... In the original patch series that Steven Rostedt and I worked on together, we both took different approaches to low-priority wakeup path. I utilized "pre-routing" (push the task away to a less important RQ before activating) approach, while Steve utilized a "post-routing" approach. The advantage of my approach is that you avoid the overhead of a wasted activate/deactivate cycle and peripherally related burdens. The advantage of Steve's method is that it neatly solves an issue preventing a "pull" optimization from being deployed. In the end, we ended up deploying Steve's idea. But it later dawned on me that we could get the best of both worlds by deploying both ideas together, albeit slightly modified. The idea is simple: Use a "light-weight" lookup for pre-routing, since we only need to approximate a good home for the task. And we also retain the post-routing push logic to clean up any inaccuracies caused by a condition of "priority mistargeting" caused by the lightweight lookup. Most of the time, the pre-routing should work and yield lower overhead. In the cases where it doesnt, the post-router will bat cleanup. Signed-off-by: Gregory Haskins <ghaskins@novell.com> Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-01-25 21:08:10 +01:00
..
irq	genirq: revert lazy irq disable for simple irqs	2007-12-18 18:05:58 +01:00
power	driver core: make /sys/power a kobject	2008-01-24 20:40:25 -08:00
time	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
.gitignore
acct.c	acct: real_parent ppid	2008-01-07 14:55:37 -08:00
audit.c	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
audit.h	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
audit_tree.c	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
auditfilter.c	[PATCH] audit: watching subtrees	2007-10-21 02:37:45 -04:00
auditsc.c	auditsc: fix kernel-doc param warnings	2007-10-22 19:40:02 -07:00
capability.c	Uninline find_pid etc set of functions	2007-10-19 11:53:41 -07:00
cgroup.c	Improve cgroup printks	2007-11-14 18:45:37 -08:00
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: replace per-subsystem mutexes with get_online_cpus()	2008-01-25 21:08:02 +01:00
cpuset.c	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
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	wait_task_stopped(): pass correct exit_code to wait_noreap_copyout()	2007-11-29 09:24:55 -08:00
extable.c
fork.c	sched: add RT-balance cpu-weight	2008-01-25 21:08:07 +01:00
futex.c	futex: Prevent stale futex owner when interrupted/timeout	2008-01-08 16:21:39 -08:00
futex_compat.c	[FUTEX] Fix address computation in compat code.	2007-11-09 16:13:08 -08:00
hrtimer.c	hrtimer: fix section mismatch	2008-01-21 19:39:41 -08:00
itimer.c	whitespace fixes: interval timers	2007-10-18 14:37:26 -07:00
kallsyms.c	FRV: fix the extern declaration of kallsyms_num_syms	2007-11-29 09:24:54 -08:00
Kconfig.hz
Kconfig.instrumentation	Tiny clean-up of OPROFILE/KPROBES configuration	2007-12-06 09:41:12 -08:00
Kconfig.preempt	Move PREEMPT_NOTIFIERS into an always-included Kconfig	2007-10-17 08:42:55 -07:00
kexec.c	vmcoreinfo: add the array length of "free_list" for filtering free pages	2008-01-08 16:10:36 -08:00
kfifo.c
kmod.c	Fix unbalanced helper_lock in kernel/kmod.c	2008-01-17 15:38:59 -08:00
kprobes.c	kprobes: support kretprobe blacklist	2007-10-16 09:43:10 -07:00
ksysfs.c	Kobject: convert remaining kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
kthread.c
latency.c
lockdep.c	softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks	2008-01-25 21:08:02 +01:00
lockdep_internals.h
lockdep_proc.c	lockdep: Avoid /proc/lockdep & lock_stat infinite output	2007-10-11 22:11:11 +02:00
Makefile	revert "Task Control Groups: example CPU accounting subsystem"	2007-11-14 18:45:40 -08:00
marker.c	Linux Kernel Markers: fix marker mutex not taken upon module load	2007-11-14 18:45:40 -08:00
module.c	Kobject: convert remaining kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
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	debug: add end-of-oops marker	2007-12-20 15:01:17 +01:00
params.c	Modules: remove unneeded release function	2008-01-24 20:40:39 -08:00
pid.c	pidns: Place under CONFIG_EXPERIMENTAL	2007-11-14 18:45:43 -08:00
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	sched: remove printk_clock()	2008-01-25 21:07:59 +01:00
profile.c	sched: document profile=sleep requiring CONFIG_SCHEDSTATS	2007-10-24 18:23:50 +02:00
ptrace.c	ptrace: Call arch_ptrace_attach() when request=PTRACE_TRACEME	2008-01-25 08:31:39 +01:00
rcupdate.c	rcu: fix section mismatch	2008-01-22 09:17:48 -08:00
rcutorture.c	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
relay.c	whitespace fixes: relayfs	2007-10-18 14:37:24 -07:00
resource.c	Add IORESOUCE_BUSY flag for System RAM	2007-11-14 18:45:39 -08:00
rtmutex-debug.c	Use helpers to obtain task pid in printks	2007-10-19 11:53:43 -07:00
rtmutex-debug.h
rtmutex-tester.c	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
rtmutex.c	Use helpers to obtain task pid in printks	2007-10-19 11:53:43 -07:00
rtmutex.h
rtmutex_common.h
rwsem.c	sched: mark rwsem functions as __sched for wchan/profiling	2007-12-18 15:21:13 +01:00
sched.c	sched: de-SCHED_OTHER-ize the RT path	2008-01-25 21:08:09 +01:00
sched_debug.c	sched: fix gcc warnings	2007-12-30 17:24:35 +01:00
sched_fair.c	sched: de-SCHED_OTHER-ize the RT path	2008-01-25 21:08:09 +01:00
sched_idletask.c	sched: de-SCHED_OTHER-ize the RT path	2008-01-25 21:08:09 +01:00
sched_rt.c	sched: pre-route RT tasks on wakeup	2008-01-25 21:08:10 +01:00
sched_stats.h	sched: clean up kernel/sched_stat.h	2007-11-28 15:52:56 +01:00
seccomp.c
signal.c	sigwait eats blocked default-ignore signals	2007-11-12 16:05:23 -08:00
softirq.c	[KERNEL]: Unexport raise_softirq_irqoff	2007-10-10 16:49:18 -07:00
softlockup.c	softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks	2008-01-25 21:08:02 +01:00
spinlock.c
srcu.c
stacktrace.c
stop_machine.c	cpu-hotplug: replace lock_cpu_hotplug() with get_online_cpus()	2008-01-25 21:08:02 +01:00
sys.c	x86: ignore the sys_getcpu() tcache parameter	2007-11-17 16:27:00 +01:00
sys_ni.c	[COMPAT]: Fix build on COMPAT platforms when CONFIG_NET is disabled.	2007-10-30 21:29:56 -07:00
sysctl.c	softlockup: automatically detect hung TASK_UNINTERRUPTIBLE tasks	2008-01-25 21:08:02 +01:00
sysctl_check.c	sysctl: fix ax25 checks	2007-12-17 19:28:17 -08:00
taskstats.c	kernel/taskstats.c: fix bogus nlmsg_free()	2007-11-14 18:45:44 -08:00
time.c	whitespace fixes: time syscalls	2007-10-18 14:37:24 -07:00
timer.c	timer: fix section mismatch	2008-01-21 19:39:41 -08:00
tsacct.c	Add scaled time to taskstats based process accounting	2007-10-18 14:37:28 -07:00
uid16.c
user.c	Kobject: convert kernel/user.c to use kobject_init/add_ng()	2008-01-24 20:40:31 -08:00
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	Isolate the UTS namespace's domainname and hostname back	2007-11-29 09:24:53 -08:00
wait.c
workqueue.c	cpu-hotplug: replace per-subsystem mutexes with get_online_cpus()	2008-01-25 21:08:02 +01:00