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Siddha, Suresh B 5c45bf279d [PATCH] sched: mc/smt power savings sched policy 
sysfs entries 'sched_mc_power_savings' and 'sched_smt_power_savings' in
/sys/devices/system/cpu/ control the MC/SMT power savings policy for the
scheduler.

Based on the values (1-enable, 0-disable) for these controls, sched groups
cpu power will be determined for different domains.  When power savings
policy is enabled and under light load conditions, scheduler will minimize
the physical packages/cpu cores carrying the load and thus conserving
power(with a perf impact based on the workload characteristics...  see OLS
2005 CMP kernel scheduler paper for more details..)

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Con Kolivas <kernel@kolivas.org>
Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
 		2006-06-27 17:32:45 -07:00
..
acpi Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2006-06-23 07:52:36 -07:00
cpu [PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only 2006-06-27 17:32:41 -07:00
.gitignore [PATCH] x86: gitignore some autogenerated files for i386 2006-02-14 16:09:35 -08:00
Makefile Merge branch 'x86-64' 2006-06-26 10:51:09 -07:00
alternative.c [PATCH] x86_64: x86_64 version of the smp alternative patch. 2006-06-26 10:48:14 -07:00
apic.c [PATCH] x86_64: fix apic error on bootup 2006-06-26 10:48:22 -07:00
apm.c [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status 2006-06-26 10:48:21 -07:00
asm-offsets.c [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
bootflag.c
…
cpuid.c [PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only 2006-06-27 17:32:41 -07:00
crash.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-06-26 13:33:14 -07:00
crash_dump.c [PATCH] kdump: read previous kernel's memory 2006-01-10 08:01:28 -08:00
doublefault.c [PATCH] i386: cpu_relax() in crash.c and doublefault.c 2006-06-25 10:00:55 -07:00
early_printk.c
…
efi.c [PATCH] fix array overrun in efi.c 2006-03-26 08:56:57 -08:00
efi_stub.S
…
entry.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
head.S [PATCH] i386: cleanup after cpu_gdt_descr conversion to per-cpu data 2006-03-23 07:38:06 -08:00
hpet.c [PATCH] generic-time: add macro to simplify/hide mask constants 2006-06-26 09:58:21 -07:00
i386_ksyms.c [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
i387.c [PATCH] x86: make i387 mxcsr_feature_mask __read_mostly 2006-06-23 07:42:57 -07:00
i8237.c
…
i8253.c [PATCH] time: fix time going backward w/ clock=pit 2006-06-26 09:58:21 -07:00
i8259.c spelling fixes 2006-06-26 18:35:02 +02:00
init_task.c [PATCH] Change maxaligned_in_smp alignemnt macros to internodealigned_in_smp macros 2006-01-08 20:13:38 -08:00
io_apic.c [PATCH] x86_64: fix vector_lock deadlock in io_apic.c 2006-06-26 10:48:17 -07:00
ioport.c [PATCH] capable/capability.h (arch/) 2006-01-11 18:42:14 -08:00
irq.c [PATCH] x86: increase interrupt vector range 2006-06-27 17:32:37 -07:00
kprobes.c [PATCH] Kprobe: multi kprobe posthandler for booster 2006-06-26 09:58:22 -07:00
ldt.c
…
machine_kexec.c Storage class should be first 2006-06-26 18:57:34 +02:00
mca.c
…
microcode.c [PATCH] fix x86 microcode driver handling of multiple matching revisions 2006-06-23 07:42:56 -07:00
module.c [PATCH] x86: SMP alternatives 2006-03-23 07:38:04 -08:00
mpparse.c [PATCH] x86_64: avoid IRQ0 ioapic pin collision 2006-05-08 09:34:56 -07:00
msr.c [PATCH] cpu hotplug: make cpu_notifier related notifier blocks __cpuinit only 2006-06-27 17:32:41 -07:00
nmi.c [PATCH] x86_64: i386/x86-64 Add nmi watchdog support for new Intel CPUs 2006-06-26 10:48:22 -07:00
numaq.c [PATCH] Time: i386 Conversion - part 2: Rework TSC Support 2006-06-26 09:58:21 -07:00
pci-dma.c
…
process.c [PATCH] i386/x86-64/ia64: Move polling flag into thread_info_status 2006-06-26 10:48:21 -07:00
ptrace.c [PATCH] drop task argument of audit_syscall_{entry,exit} 2006-05-01 06:06:18 -04:00
quirks.c [PATCH] EDAC: core EDAC support code 2006-01-18 19:20:31 -08:00
reboot.c [PATCH] i386/x86-64: Don't IPI to offline cpus on shutdown 2006-01-11 19:04:50 -08:00
reboot_fixups.c [PATCH] i386: Remove printk about reboot fixups at reboot 2006-04-09 11:53:53 -07:00
relocate_kernel.S
…
scx200.c [PATCH] chardev: GPIO for SCx200 & PC-8736x: replace spinlocks w mutexes 2006-06-27 17:32:43 -07:00
semaphore.c [PATCH] x86: SMP alternatives 2006-03-23 07:38:04 -08:00
setup.c [PATCH] Time: i386 Conversion - part 2: Rework TSC Support 2006-06-26 09:58:21 -07:00
sigframe.h
…
signal.c [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
smp.c [PATCH] x86_64: Standardize i386/x86_64 handling of NMI_VECTOR 2006-06-26 10:48:22 -07:00
smpboot.c [PATCH] sched: mc/smt power savings sched policy 2006-06-27 17:32:45 -07:00
srat.c [PATCH] Unify pxm_to_node() and node_to_pxm() 2006-06-23 07:42:48 -07:00
summit.c
…
sys_i386.c [PATCH] Uninline sys_mmap common code (reduce binary size) 2006-03-22 07:54:02 -08:00
syscall_table.S [PATCH] sys_move_pages: 32bit support (i386, x86_64) 2006-06-23 07:42:53 -07:00
sysenter.c [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
time.c [PATCH] Time: i386 Clocksource Drivers 2006-06-26 09:58:21 -07:00
time_hpet.c [PATCH] move rtc_interrupt() prototype to rtc.h 2006-01-08 20:13:47 -08:00
topology.c [PATCH] node hotplug: register cpu: remove node struct 2006-06-27 17:32:37 -07:00
trampoline.S
…
traps.c [PATCH] i386/x86-64: fall back to old-style call trace if no unwinding 2006-06-26 10:48:18 -07:00
tsc.c [PATCH] generic-time: add macro to simplify/hide mask constants 2006-06-26 09:58:21 -07:00
vm86.c [PATCH] drop task argument of audit_syscall_{entry,exit} 2006-05-01 06:06:18 -04:00
vmlinux.lds.S [PATCH] i386: reliable stack trace support (i386) 2006-06-26 10:48:17 -07:00
vsyscall-int80.S
…
vsyscall-note.S
…
vsyscall-sigreturn.S [PATCH] Mark unwind info for signal trampolines in vDSOs 2006-03-31 12:18:52 -08:00
vsyscall-sysenter.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
vsyscall.S
…
vsyscall.lds.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00