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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 21:27:32 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 21:27:32 -0400 |
commit | d79ee93de909dfb252279b9a95978bbda9a814a9 (patch) | |
tree | bfccca60fd36259ff4bcc5e78a2c272fbd680065 /Documentation/ABI | |
parent | 2ff2b289a695807e291e1ed9f639d8a3ba5f4254 (diff) | |
parent | 1c2927f18576d65631d8e0ddd19e1d023183222e (diff) |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler changes from Ingo Molnar:
"The biggest change is the cleanup/simplification of the load-balancer:
instead of the current practice of architectures twiddling scheduler
internal data structures and providing the scheduler domains in
colorfully inconsistent ways, we now have generic scheduler code in
kernel/sched/core.c:sched_init_numa() that looks at the architecture's
node_distance() parameters and (while not fully trusting it) deducts a
NUMA topology from it.
This inevitably changes balancing behavior - hopefully for the better.
There are various smaller optimizations, cleanups and fixlets as well"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Taint kernel with TAINT_WARN after sleep-in-atomic bug
sched: Remove stale power aware scheduling remnants and dysfunctional knobs
sched/debug: Fix printing large integers on 32-bit platforms
sched/fair: Improve the ->group_imb logic
sched/nohz: Fix rq->cpu_load[] calculations
sched/numa: Don't scale the imbalance
sched/fair: Revert sched-domain iteration breakage
sched/x86: Rewrite set_cpu_sibling_map()
sched/numa: Fix the new NUMA topology bits
sched/numa: Rewrite the CONFIG_NUMA sched domain support
sched/fair: Propagate 'struct lb_env' usage into find_busiest_group
sched/fair: Add some serialization to the sched_domain load-balance walk
sched/fair: Let minimally loaded cpu balance the group
sched: Change rq->nr_running to unsigned int
x86/numa: Check for nonsensical topologies on real hw as well
x86/numa: Hard partition cpu topology masks on node boundaries
x86/numa: Allow specifying node_distance() for numa=fake
x86/sched: Make mwait_usable() heed to "idle=" kernel parameters properly
sched: Update documentation and comments
sched_rt: Avoid unnecessary dequeue and enqueue of pushable tasks in set_cpus_allowed_rt()
Diffstat (limited to 'Documentation/ABI')
-rw-r--r-- | Documentation/ABI/testing/sysfs-devices-system-cpu | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu index e7be75b96e4b..5dab36448b44 100644 --- a/Documentation/ABI/testing/sysfs-devices-system-cpu +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu | |||
@@ -9,31 +9,6 @@ Description: | |||
9 | 9 | ||
10 | /sys/devices/system/cpu/cpu#/ | 10 | /sys/devices/system/cpu/cpu#/ |
11 | 11 | ||
12 | What: /sys/devices/system/cpu/sched_mc_power_savings | ||
13 | /sys/devices/system/cpu/sched_smt_power_savings | ||
14 | Date: June 2006 | ||
15 | Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org> | ||
16 | Description: Discover and adjust the kernel's multi-core scheduler support. | ||
17 | |||
18 | Possible values are: | ||
19 | |||
20 | 0 - No power saving load balance (default value) | ||
21 | 1 - Fill one thread/core/package first for long running threads | ||
22 | 2 - Also bias task wakeups to semi-idle cpu package for power | ||
23 | savings | ||
24 | |||
25 | sched_mc_power_savings is dependent upon SCHED_MC, which is | ||
26 | itself architecture dependent. | ||
27 | |||
28 | sched_smt_power_savings is dependent upon SCHED_SMT, which | ||
29 | is itself architecture dependent. | ||
30 | |||
31 | The two files are independent of each other. It is possible | ||
32 | that one file may be present without the other. | ||
33 | |||
34 | Introduced by git commit 5c45bf27. | ||
35 | |||
36 | |||
37 | What: /sys/devices/system/cpu/kernel_max | 12 | What: /sys/devices/system/cpu/kernel_max |
38 | /sys/devices/system/cpu/offline | 13 | /sys/devices/system/cpu/offline |
39 | /sys/devices/system/cpu/online | 14 | /sys/devices/system/cpu/online |