linux/kernel
Mike Galbraith b971284b4a sched: Fix vmark regression on big machines
commit 50b926e439 upstream

SD_PREFER_SIBLING is set at the CPU domain level if power saving isn't
enabled, leading to many cache misses on large machines as we traverse
looking for an idle shared cache to wake to.  Change the enabler of
select_idle_sibling() to SD_SHARE_PKG_RESOURCES, and enable same at the
sibling domain level.

Reported-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1262612696.15495.15.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-20 13:18:11 -07:00
..
gcov gcov: fix null-pointer dereference for certain module types 2010-09-20 13:17:53 -07:00
irq irq: Add new IRQ flag IRQF_NO_SUSPEND 2010-08-13 13:19:50 -07:00
power Freezer: Fix buggy resume test for tasks frozen with cgroup freezer 2010-04-26 07:41:17 -07:00
time timekeeping: Fix clock_gettime vsyscall time warp 2010-08-13 13:20:13 -07:00
trace tracing: t_start: reset FTRACE_ITER_HASH in case of seek/pread 2010-09-20 13:17:52 -07:00
.gitignore
acct.c bsdacct: fix uid/gid misreporting 2009-12-18 14:03:52 -08:00
async.c
audit_tree.c fix more leaks in audit_tree.c tag_chunk() 2010-01-18 10:19:50 -08:00
audit_watch.c Audit: reorganize struct audit_watch to save 8 bytes 2009-09-24 03:50:25 -04:00
audit.c Audit: send signal info if selinux is disabled 2009-09-24 03:50:26 -04:00
audit.h Fix rule eviction order for AUDIT_DIR 2009-06-24 00:02:38 -04:00
auditfilter.c Audit: clean up all op= output to include string quoting 2009-06-24 00:00:52 -04:00
auditsc.c Audit: rearrange audit_context to save 16 bytes per struct 2009-09-24 03:50:26 -04:00
backtracetest.c
bounds.c
capability.c
cgroup_freezer.c Freezer: Fix buggy resume test for tasks frozen with cgroup freezer 2010-04-26 07:41:17 -07:00
cgroup.c cgroups: fix 2.6.32 regression causing BUG_ON() in cgroup_diput() 2010-01-18 10:19:32 -08:00
compat.c compat: Make compat_alloc_user_space() incorporate the access_ok() 2010-09-20 13:17:57 -07:00
configs.c
cpu.c sched: _cpu_down(): Don't play with current->cpus_allowed 2010-09-20 13:18:08 -07:00
cpuset.c sched: Make select_fallback_rq() cpuset friendly 2010-09-20 13:18:08 -07:00
cred-internals.h
cred.c CRED: Fix a race in creds_are_invalid() in credentials debugging 2010-05-12 14:57:10 -07:00
delayacct.c headers: taskstats_kern.h trim 2009-09-18 09:48:52 -07:00
dma.c
exec_domain.c
exit.c sched, cputime: Introduce thread_group_times() 2010-08-13 13:20:14 -07:00
extable.c
fork.c sched: Fix fork vs hotplug vs cpuset namespaces 2010-09-20 13:18:02 -07:00
freezer.c sched: fix nr_uninterruptible accounting of frozen tasks really 2009-07-18 14:19:53 +02:00
futex_compat.c futex: Fix compat_futex to be same as futex for REQUEUE_PI 2009-08-10 15:41:12 +02:00
futex.c futex: futex_find_get_task remove credentails check 2010-08-02 10:21:24 -07:00
groups.c kernel/groups.c: fix integer overflow in groups_search 2010-09-20 13:17:54 -07:00
hrtimer.c hrtimer: Tune hrtimer_interrupt hang logic 2010-04-01 15:58:14 -07:00
hung_task.c sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
itimer.c itimers: Add tracepoints for itimer 2009-08-29 14:10:07 +02:00
kallsyms.c kallsyms: use new arch_is_kernel_text() 2009-09-23 07:39:30 -07:00
Kconfig.freezer
Kconfig.hz
Kconfig.preempt
kexec.c kexec: fix omitting offset in extended crashkernel syntax 2009-07-29 19:10:34 -07:00
kfifo.c kfifo: Use "const" definitions 2009-09-19 13:13:17 -07:00
kgdb.c
kmod.c Revert "kmod: fix race in usermodehelper code" 2009-09-23 18:12:10 -07:00
kprobes.c const: constify remaining file_operations 2009-10-01 16:11:11 -07:00
ksysfs.c
kthread.c cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node 2010-04-01 15:58:46 -07:00
latencytop.c
lockdep_internals.h lockdep: BFS cleanup 2009-07-24 10:53:29 +02:00
lockdep_proc.c seq_file: constify seq_operations 2009-09-23 07:39:29 -07:00
lockdep_states.h
lockdep.c Revert "lockdep: fix incorrect percpu usage" 2010-06-01 09:45:46 -07:00
Makefile SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
module.c dynamic debug: move ddebug_remove_module() down into free_module() 2010-08-02 10:20:47 -07:00
mutex-debug.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
mutex-debug.h
mutex.c mutex: Fix optimistic spinning vs. BKL 2010-07-05 11:10:31 -07:00
mutex.h
notifier.c
ns_cgroup.c cgroups: let ss->can_attach and ss->attach do whole threadgroups at a time 2009-09-24 07:20:58 -07:00
nsproxy.c nsproxy: extract create_nsproxy() 2009-06-18 13:03:56 -07:00
panic.c Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-10-08 12:16:35 -07:00
params.c param: fix setting arrays of bool 2009-10-29 08:56:20 +10:30
perf_event.c Fix racy use of anon_inode_getfd() in perf_event.c 2010-07-05 11:10:30 -07:00
pid_namespace.c pidns: deny CLONE_PARENT|CLONE_NEWPID combination 2009-09-24 07:21:04 -07:00
pid.c mm: also use alloc_large_system_hash() for the PID hash table 2009-09-22 07:17:38 -07:00
pm_qos_params.c
posix-cpu-timers.c itimers: Add tracepoints for itimer 2009-08-29 14:10:07 +02:00
posix-timers.c posix_timer: Fix error path in timer_create 2010-07-05 11:10:30 -07:00
printk.c printk: add printk_delay to make messages readable for some scenarios 2009-09-23 07:39:28 -07:00
profile.c profile: fix stats and data leakage 2010-05-26 14:29:18 -07:00
ptrace.c ptrace: __ptrace_detach: do __wake_up_parent() if we reap the tracee 2009-09-24 07:20:59 -07:00
rcupdate.c rcu: Move rcu_barrier() to rcutree 2009-10-07 08:11:20 +02:00
rcutorture.c rcu: Clean up code to address Ingo's checkpatch feedback 2009-09-23 19:46:30 +02:00
rcutree_plugin.h rcu: Remove inline from forward-referenced functions 2009-12-18 14:03:04 -08:00
rcutree_trace.c rcu: Make hot-unplugged CPU relinquish its own RCU callbacks 2009-10-07 08:11:20 +02:00
rcutree.c rcu: Fix note_new_gpnum() uses of ->gpnum 2009-12-18 14:03:01 -08:00
rcutree.h rcu: Remove inline from forward-referenced functions 2009-12-18 14:03:04 -08:00
relay.c const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
res_counter.c memcg: some modification to softlimit under hierarchical memory reclaim. 2009-10-01 16:11:13 -07:00
resource.c walk system ram range 2009-09-23 07:39:41 -07:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c rtmutex: Avoid deadlock in rt_mutex_start_proxy_lock() 2009-08-06 05:50:21 +02:00
rtmutex.h
rwsem.c
sched_clock.c sched: Fix cpu_clock() in NMIs, on !CONFIG_HAVE_UNSTABLE_SCHED_CLOCK 2010-01-22 15:18:30 -08:00
sched_cpupri.c sched: Add new prio to cpupri before removing old prio 2009-08-02 14:26:09 +02:00
sched_cpupri.h
sched_debug.c sched: Remove forced2_migrations stats 2010-09-20 13:17:59 -07:00
sched_fair.c sched: Fix vmark regression on big machines 2010-09-20 13:18:11 -07:00
sched_features.h sched: Add new wakeup preemption mode: WAKEUP_RUNNING 2009-09-17 10:17:25 +02:00
sched_idletask.c sched: Fix TASK_WAKING vs fork deadlock 2010-09-20 13:18:09 -07:00
sched_rt.c sched: Fix TASK_WAKING vs fork deadlock 2010-09-20 13:18:09 -07:00
sched_stats.h
sched.c sched: Fix nr_uninterruptible count 2010-09-20 13:18:09 -07:00
seccomp.c
semaphore.c
signal.c signals: check_kill_permission(): don't check creds if same_thread_group() 2010-07-05 11:10:56 -07:00
slow-work-debugfs.c SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
slow-work.c slow-work: use get_ref wrapper instead of directly calling get_ref 2010-08-10 10:20:45 -07:00
slow-work.h SLOW_WORK: Move slow_work's proc file to debugfs 2009-12-01 08:20:31 -08:00
smp.c cpumask: remove arch_send_call_function_ipi 2009-09-24 09:34:47 +09:30
softirq.c softirq: add BLOCK_IOPOLL to softirq_to_name 2009-09-17 15:53:44 -04:00
softlockup.c softlockup: Stop spurious softlockup messages due to overflow 2010-04-01 15:58:47 -07:00
spinlock.c locking: Allow arch-inlined spinlocks 2009-08-31 18:08:50 +02:00
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2009-09-24 15:13:11 -07:00
sys.c sched, cputime: Introduce thread_group_times() 2010-08-13 13:20:14 -07:00
sysctl_check.c NET: fix oops at bootime in sysctl code 2010-02-09 04:51:02 -08:00
sysctl.c kernel/sysctl.c: fix stable merge error in NOMMU mmap_min_addr 2010-01-18 10:19:49 -08:00
taskstats.c genetlink: make netns aware 2009-07-12 14:03:27 -07:00
test_kprobes.c
time.c time: Prevent 32 bit overflow with set_normalized_timespec() 2009-09-15 10:17:30 +02:00
timeconst.pl
timer.c Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-23 09:46:15 -07:00
tracepoint.c trivial: fix typo "to to" in multiple files 2009-09-21 15:14:55 +02:00
tsacct.c
uid16.c headers: utsname.h redux 2009-09-23 18:13:10 -07:00
up.c
user_namespace.c
user.c uids: Prevent tear down race 2009-11-02 16:02:39 +01:00
utsname_sysctl.c sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
utsname.c utsns: extract creeate_uts_ns() 2009-06-18 13:03:55 -07:00
wait.c locking, sched: Give waitqueue spinlocks their own lockdep classes 2009-08-10 14:43:09 +02:00
workqueue.c workqueue: fix race condition in schedule_on_each_cpu() 2009-11-17 17:40:33 -08:00