Rik van Riel ca28aa53dd sched/numa: Fix task or group comparison ...

This patch separately considers task and group affinities when
searching for swap candidates during NUMA placement. If tasks
are part of the same group, or no group at all, the task weights
are considered.

Some hysteresis is added to prevent tasks within one group from
getting bounced between NUMA nodes due to tiny differences.

If tasks are part of different groups, the code compares group
weights, in order to favor grouping task groups together.

The patch also changes the group weight multiplier to be the
same as the task weight multiplier, since the two are no longer
added up like before.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-55-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2013-10-09 14:48:08 +02:00

..

cpu

sched: Add NEED_RESCHED to the preempt_count

2013-09-25 14:07:49 +02:00

debug

kgdb/sysrq: fix inconstistent help message of sysrq key

2013-04-30 17:04:10 -07:00

events

perf: Fix capabilities bitfield compatibility in 'struct perf_event_mmap_page'

2013-09-20 09:45:11 +02:00

gcov

kernel: replace strict_strto*() with kstrto*()

2013-09-12 15:38:03 -07:00

irq

Remove GENERIC_HARDIRQ config option

2013-09-13 15:09:52 +02:00

power

PM / hibernate: Fix user space driven resume regression

2013-09-30 19:40:56 +02:00

printk

TTY/Serial driver patches for 3.12-rc1

2013-09-03 11:38:36 -07:00

sched

sched/numa: Fix task or group comparison

2013-10-09 14:48:08 +02:00

time

Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-09-18 11:24:49 -05:00

trace

Not much changes for the 3.12 merge window. The major tracing changes

2013-09-09 14:42:15 -07:00

.gitignore

kernel/hz.bc: ignore.

2013-04-22 07:09:06 -07:00

acct.c

fs: Fix hang with BSD accounting on frozen filesystem

2013-05-04 14:57:58 -04:00

async.c

async: rename and redefine async_func_ptr

2013-03-12 13:59:14 -07:00

audit_tree.c

kernel/audit_tree.c:audit_add_tree_rule(): protect `rule' from kill_rules()

2013-06-12 16:29:46 -07:00

audit_watch.c

…

audit.c

audit: fix endless wait in audit_log_start()

2013-09-24 17:00:26 -07:00

audit.h

audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record

2013-07-09 10:33:19 -07:00

auditfilter.c

audit: Fix decimal constant description

2013-07-09 10:33:19 -07:00

auditsc.c

audit: fix mq_open and mq_unlink to add the MQ root as a hidden parent audit_names record

2013-07-09 10:33:19 -07:00

backtracetest.c

…

bounds.c

mm: numa: Change page last {nid,pid} into {cpu,pid}

2013-10-09 14:47:45 +02:00

capability.c

xfs: update for v3.12-rc1

2013-09-09 11:19:09 -07:00

cgroup_freezer.c

cgroup: make css_for_each_descendant() and friends include the origin css in the iteration

2013-08-08 20:11:27 -04:00

cgroup.c

Kill indirect include of file.h from eventfd.h, use fdget() in cgroup.c

2013-09-07 19:54:57 -04:00

compat.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-05-01 07:21:43 -07:00

configs.c

proc: Supply PDE attribute setting accessor functions

2013-05-01 17:29:18 -04:00

context_tracking.c

Linux 3.12-rc4

2013-10-09 12:36:13 +02:00

cpu_pm.c

…

cpu.c

ACPI / processor: Acquire writer lock to update CPU maps

2013-08-13 12:20:16 +02:00

cpuset.c

Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

2013-09-03 18:25:03 -07:00

crash_dump.c

…

cred.c

…

delayacct.c

cputime: Use accessors to read task cputime stats

2013-01-27 19:23:31 +01:00

dma.c

…

elfcore.c

…

exec_domain.c

…

exit.c

ptrace: revert "Prepare to fix racy accesses on task breakpoints"

2013-07-09 10:33:26 -07:00

extable.c

extable: skip sorting if the table is empty

2013-09-11 15:58:25 -07:00

fork.c

sched/numa: Stay on the same node if CLONE_VM

2013-10-09 14:47:57 +02:00

freezer.c

freezer: set PF_SUSPEND_TASK flag on tasks that call freeze_processes

2013-07-30 14:05:06 +02:00

futex_compat.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-02-23 18:50:11 -08:00

futex.c

futex: Use freezable blocking call

2013-06-25 23:11:19 +02:00

groups.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

hrtimer.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

hung_task.c

hung_task debugging: Print more info when reporting the problem

2013-08-02 11:02:42 +02:00

irq_work.c

Merge branch 'nohz/printk-v8' into irq/core

2013-02-05 00:48:46 +01:00

itimer.c

…

jump_label.c

jump_label: Split jumplabel ratelimit

2013-08-09 07:53:54 -07:00

kallsyms.c

kernel: kallsyms: memory override issue, need check destination buffer length

2013-04-15 15:17:26 +09:30

kcmp.c

…

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking: Fix copy/paste errors of "ARCH_INLINE_*_UNLOCK_BH"

2013-05-28 08:50:00 +02:00

Kconfig.preempt

…

kexec.c

kexec: remove unnecessary return

2013-09-11 15:59:10 -07:00

kmod.c

kernel/kmod.c: check for NULL in call_usermodehelper_exec()

2013-09-30 14:31:02 -07:00

kprobes.c

kprobes: allow to specify custom allocator for insn caches

2013-09-11 15:58:52 -07:00

ksysfs.c

kernel: replace strict_strto*() with kstrto*()

2013-09-12 15:38:03 -07:00

kthread.c

kthread: implement probe_kthread_data()

2013-04-30 17:04:02 -07:00

latencytop.c

…

lglock.c

lglock: Update lockdep annotations to report recursive local locks

2013-07-12 13:51:19 +02:00

lockdep_internals.h

…

lockdep_proc.c

…

lockdep_states.h

…

lockdep.c

lockdep: remove task argument from debug_check_no_locks_held

2013-05-12 14:16:21 +02:00

Makefile

Remove GENERIC_HARDIRQ config option

2013-09-13 15:09:52 +02:00

modsign_certificate.S

CONFIG_SYMBOL_PREFIX: cleanup.

2013-03-15 15:09:43 +10:30

modsign_pubkey.c

kernel/modsign_pubkey.c: fix init const for module signing code

2013-09-11 15:58:21 -07:00

module_signing.c

…

module-internal.h

…

module.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-09-05 08:50:26 -07:00

mutex-debug.c

…

mutex-debug.h

…

mutex.c

Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2013-09-04 08:18:19 -07:00

mutex.h

…

notifier.c

…

nsproxy.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-09-07 14:35:32 -07:00

padata.c

padata - Register hotcpu notifier after initialization

2013-08-29 14:37:59 +10:00

panic.c

panic: call panic handlers before kmsg_dump

2013-09-11 15:59:30 -07:00

params.c

kernel/params: fix handling of signed integer types

2013-09-28 12:35:52 -07:00

pid_namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-09-07 14:35:32 -07:00

pid.c

pidns: fix free_pid() to handle the first fork failure

2013-09-30 14:31:03 -07:00

posix-cpu-timers.c

posix_timers: fix racy timer delta caching on task exit

2013-07-03 16:54:42 +02:00

posix-timers.c

posix-timers: Remove unused variable

2013-04-18 12:51:19 +02:00

profile.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

ptrace.c

__ptrace_may_access() should not deny sub-threads

2013-09-11 15:59:01 -07:00

range.c

range: Do not add new blank slot with add_range_with_merge

2013-06-18 11:32:10 -05:00

rcu.h

rcu: Make call_rcu() leak callbacks for debug-object errors

2013-08-18 17:40:03 -07:00

rcupdate.c

Not much changes for the 3.12 merge window. The major tracing changes

2013-09-09 14:42:15 -07:00

rcutiny_plugin.h

rcu: Add const annotation to char * for RCU tracepoints and functions

2013-07-29 17:07:49 -04:00

rcutiny.c

rcu: Add const annotation to char * for RCU tracepoints and functions

2013-07-29 17:07:49 -04:00

rcutorture.c

rcu: Make rcutorture emit online failures if verbose

2013-08-20 11:38:45 -07:00

rcutree_plugin.h

nohz_full: Force RCU's grace-period kthreads onto timekeeping CPU

2013-08-31 14:44:02 -07:00

rcutree_trace.c

rcutrace: single_open() leaks

2013-05-05 00:16:35 -04:00

rcutree.c

sched, rcu: Make RCU use resched_cpu()

2013-09-25 13:53:08 +02:00

rcutree.h

nohz_full: Force RCU's grace-period kthreads onto timekeeping CPU

2013-08-31 14:44:02 -07:00

reboot.c

kernel/reboot.c: re-enable the function of variable reboot_default

2013-09-24 17:00:26 -07:00

relay.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

res_counter.c

memcg: reduce function dereference

2013-09-12 15:38:02 -07:00

resource.c

kernel/resource.c: remove the unneeded assignment in function __find_resource

2013-07-03 16:08:06 -07:00

rtmutex_common.h

…

rtmutex-debug.c

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

rtmutex-debug.h

…

rtmutex-tester.c

locking/rtmutex/tester: Set correct permissions on sysfs files

2013-04-10 14:48:37 +02:00

rtmutex.c

rtmutex: Document rt_mutex_adjust_prio_chain()

2013-05-28 09:23:52 +02:00

rtmutex.h

…

rwsem.c

Revert "rw_semaphore: remove up/down_read_non_owner"

2013-03-23 15:53:52 -07:00

seccomp.c

seccomp: allow BPF_XOR based ALU instructions.

2013-03-26 11:07:19 +11:00

semaphore.c

semaphore: use `bool' type for semaphore_waiter's up

2013-04-30 17:04:08 -07:00

signal.c

kernel-wide: fix missing validations on __get/__put/__copy_to/__copy_from_user()

2013-09-11 15:58:18 -07:00

smp.c

kernel/smp.c: quit unconditionally enabling irqs in on_each_cpu_mask().

2013-09-11 15:58:25 -07:00

smpboot.c

kernel: delete __cpuinit usage from all core kernel files

2013-07-14 19:36:59 -04:00

smpboot.h

…

softirq.c

Linux 3.12-rc4

2013-10-09 12:36:13 +02:00

spinlock.c

kernel/spinlock.c: add default arch_*_relax definitions for GENERIC_LOCKBREAK

2013-09-11 15:58:21 -07:00

srcu.c

srcu: use ACCESS_ONCE() to access sp->completed in srcu_read_lock()

2013-02-07 15:19:36 -08:00

stacktrace.c

…

stop_machine.c

stop_machine: Introduce stop_two_cpus()

2013-10-09 12:40:45 +02:00

sys_ni.c

unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

2013-05-09 13:46:38 -04:00

sys.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

sysctl_binary.c

kernel: remove unnecessary head file

2013-06-26 18:01:46 +09:00

sysctl.c

sched/numa: Favour moving tasks towards the preferred node

2013-10-09 12:40:26 +02:00

task_work.c

task_work: documentation

2013-09-11 15:58:27 -07:00

taskstats.c

…

test_kprobes.c

kernel/: rename random32() to prandom_u32()

2013-04-29 18:28:42 -07:00

time.c

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

timeconst.bc

kernel: Replace timeconst.pl with a bc script

2013-02-16 23:17:25 +01:00

timer.c

sched: Introduce preempt_count accessor functions

2013-09-25 14:07:32 +02:00

tracepoint.c

Tracing updates for Linux 3.10

2013-04-29 13:55:38 -07:00

tsacct.c

cputime: Use accessors to read task cputime stats

2013-01-27 19:23:31 +01:00

uid16.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

up.c

smp.h: move !SMP version of on_each_cpu() out-of-line

2013-09-11 15:58:25 -07:00

user_namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-09-07 14:35:32 -07:00

user-return-notifier.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

user.c

userns: Better restrictions on when proc and sysfs can be mounted

2013-08-26 19:17:03 -07:00

utsname_sysctl.c

kernel/utsname_sysctl.c: put get/get_uts() into CONFIG_PROC_SYSCTL code block

2013-02-27 19:10:22 -08:00

utsname.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

wait.c

kernel: fix new kernel-doc warning in wait.c

2013-08-19 09:08:54 -07:00

watchdog.c

watchdog: update watchdog_thresh properly

2013-09-24 17:00:25 -07:00

workqueue_internal.h

sched: Rename sched.c as sched/core.c in comments and Documentation

2013-06-19 12:58:42 +02:00

workqueue.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-09-06 09:36:28 -07:00