Peter Zijlstra 8f4d37ec07 sched: high-res preemption tick ... Use HR-timers (when available) to deliver an accurate preemption tick. The regular scheduler tick that runs at 1/HZ can be too coarse when nice level are used. The fairness system will still keep the cpu utilisation 'fair' by then delaying the task that got an excessive amount of CPU time but try to minimize this by delivering preemption points spot-on. The average frequency of this extra interrupt is sched_latency / nr_latency. Which need not be higher than 1/HZ, its just that the distribution within the sched_latency period is important. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>		2008-01-25 21:08:29 +01:00
..
mach-bigsmp	…
mach-default	x86: fix reboot with no keyboard attached	2007-11-17 16:27:01 +01:00
mach-es7000	x86: fix bogus memcpy in es7000_check_dsdt()	2007-11-17 16:27:00 +01:00
mach-generic	…
mach-numaq	…
mach-summit	…
mach-visws	x86: visws extern inline to static inline	2007-10-17 20:16:39 +02:00
mach-voyager	x86: voyager use correct header file name	2007-11-17 16:27:00 +01:00
xen	…
Kbuild	x86: merge setup_32/64.h	2007-10-23 22:37:24 +02:00
a.out.h	x86: unify a.out{,_32,_64}.h	2007-10-23 22:37:23 +02:00
acpi.h	ACPI: Set max_cstate to 1 for early Opterons.	2007-11-26 20:42:19 +01:00
acpi_32.h	x86: Unify i386 and x86-64 early quirks	2007-10-19 20:35:03 +02:00
acpi_64.h	…
agp.h	x86: unify include/asm/agp_32/64.h	2007-10-17 20:17:12 +02:00
alternative-asm.h	x86: rename .i assembler includes to .h	2007-10-17 20:16:29 +02:00
alternative.h	…
alternative_32.h	…
alternative_64.h	…
apic.h	…
apic_32.h	x86: fix ACPI compile for LOCAL_APIC=n	2007-11-26 20:42:19 +01:00
apic_64.h	x86: add lapic_shutdown for x86_64	2007-10-23 22:37:22 +02:00
apicdef.h	…
apicdef_32.h	…
apicdef_64.h	…
arch_hooks.h	…
atomic.h	…
atomic_32.h	…
atomic_64.h	x86: make atomic64_t work like atomic_t	2007-10-17 20:16:21 +02:00
auxvec.h	x86: unify include/asm/auxvec_32/64.h	2007-10-17 20:17:13 +02:00
bitops.h	…
bitops_32.h	bitops kernel-doc: inline instead of macro	2007-10-25 16:16:26 -07:00
bitops_64.h	x86 bitops: fix code style issues	2007-10-25 16:16:26 -07:00
boot.h	…
bootparam.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
bug.h	x86: unify include/asm/bug_32/64.h	2007-10-17 20:26:16 +02:00
bugs.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
byteorder.h	x86: fix asm-x86/byteorder.h for userspace export	2008-01-01 19:12:15 +01:00
cache.h	x86: unify include/asm/cache_32/64.h	2007-10-17 20:17:15 +02:00
cacheflush.h	Intel IOMMU: clflush_cache_range now takes size param	2007-10-22 08:13:18 -07:00
calgary.h	…
calling.h	…
checksum.h	…
checksum_32.h	…
checksum_64.h	…
cmpxchg.h	…
cmpxchg_32.h	…
cmpxchg_64.h	…
compat.h	x86: Use linux/elfcore-compat.h	2007-10-19 20:35:02 +02:00
cpu.h	i386: no need to make enable_cpu_hotplug a variable	2007-10-17 20:16:16 +02:00
cpufeature.h	…
cpufeature_32.h	I/OAT: Add DCA services	2007-10-16 09:43:09 -07:00
cpufeature_64.h	…
cputime.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
current.h	…
current_32.h	…
current_64.h	…
debugreg.h	x86: unify include/asm/debugreg_32/64.h	2007-10-17 20:35:37 +02:00
delay.h	x86: unify include/asm/delay_32/64.h	2007-10-17 20:17:17 +02:00
desc.h	…
desc_32.h	…
desc_64.h	x86: use descriptor's functions instead of inline assembly	2007-10-19 20:35:03 +02:00
desc_defs.h	…
device.h	intel-iommu: fix for IOMMU early crash	2007-10-22 08:13:19 -07:00
div64.h	x86: unify div64{,_32,_64}.h	2007-10-23 22:37:23 +02:00
dma-mapping.h	…
dma-mapping_32.h	Change table chaining layout	2007-10-22 21:20:01 +02:00
dma-mapping_64.h	x86-64: enable sg chaining	2007-10-16 11:26:02 +02:00
dma.h	…
dma_32.h	…
dma_64.h	…
dmi.h	x86: unify include/asm/dmi_32/64.h	2007-10-17 20:17:18 +02:00
dwarf2.h	…
dwarf2_32.h	…
dwarf2_64.h	…
e820.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
e820_32.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
e820_64.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
edac.h	x86: unify include/asm/cache_32/64.h	2007-10-17 20:17:19 +02:00
elf.h	x86: merge elf_32/64.h	2007-10-23 22:37:23 +02:00
emergency-restart.h	…
errno.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
fb.h	x86: unify include/asm/cache_32/64.h	2007-10-17 20:17:21 +02:00
fcntl.h	…
fixmap.h	…
fixmap_32.h	…
fixmap_64.h	…
floppy.h	x86: unify include/asm/floppy_32/64.h	2007-10-17 20:24:56 +02:00
fpu32.h	…
frame.h	x86: rename .i assembler includes to .h	2007-10-17 20:16:29 +02:00
futex.h	…
futex_32.h	…
futex_64.h	…
gart.h	x86 gart: rename symbols only used for the GART implementation	2007-10-30 00:22:22 +01:00
genapic.h	…
genapic_32.h	…
genapic_64.h	…
geode.h	GEODE: use symbolic constant in cs5536 reboot fixup	2007-10-19 20:35:02 +02:00
hardirq.h	…
hardirq_32.h	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
hardirq_64.h	…
highmem.h	…
hpet.h	x86: disable hpet on shutdown	2007-12-03 17:17:10 +01:00
hw_irq.h	…
hw_irq_32.h	…
hw_irq_64.h	x86: Add parenthesis to IRQ vector macros	2007-10-17 20:16:28 +02:00
hypertransport.h	…
i387.h	…
i387_32.h	…
i387_64.h	x86: fix taking DNA during 64bit sigreturn	2007-11-12 11:09:33 -08:00
i8253.h	…
i8259.h	…
ia32.h	…
ia32_unistd.h	…
ide.h	ide: add CONFIG_IDE_ARCH_OBSOLETE_INIT	2007-10-20 00:32:32 +02:00
idle.h	…
intel_arch_perfmon.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
io.h	…
io_32.h	x86: asm-i386/io.h fix constness	2007-10-17 20:16:40 +02:00
io_64.h	Remove dma_cache_(wback|inv|wback_inv) functions	2007-10-17 08:42:57 -07:00
io_apic.h	…
io_apic_32.h	…
io_apic_64.h	x86: Unify i386 and x86-64 early quirks	2007-10-19 20:35:03 +02:00
ioctl.h	…
ioctls.h	x86: unify include/asm/ioctls_32/64.h	2007-10-17 20:26:11 +02:00
iommu.h	x86 gart: rename iommu.h to gart.h	2007-10-30 00:22:22 +01:00
ipcbuf.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
ipi.h	x86: convert cpu_to_apicid to be a per cpu variable	2007-10-19 20:35:03 +02:00
irq.h	…
irq_32.h	i386: introduce "used_vectors" bitmap which can be used to reserve vectors.	2007-10-19 20:35:03 +02:00
irq_64.h	…
irq_regs.h	…
irq_regs_32.h	…
irq_regs_64.h	…
irqflags.h	…
irqflags_32.h	lockdep: fixup irq tracing	2007-10-25 14:01:10 +02:00
irqflags_64.h	lockdep: fixup irq tracing	2007-10-25 14:01:10 +02:00
ist.h	Make asm-x86/bootparam.h includable from userspace.	2007-10-23 15:49:47 +10:00
k8.h	…
kdebug.h	x86: unify include/asm/kdebug_32/64.h	2007-10-17 20:26:12 +02:00
kexec.h	…
kexec_32.h	…
kexec_64.h	…
kmap_types.h	x86: unify include/asm/agp_32/64.h	2007-10-17 20:26:13 +02:00
kprobes.h	…
kprobes_32.h	x86: jprobe bugfix	2007-12-18 18:05:58 +01:00
kprobes_64.h	x86: jprobe bugfix	2007-12-18 18:05:58 +01:00
ldt.h	x86: unify include/asm/ldt_32/64.h	2007-10-17 20:16:47 +02:00
lguest.h	Reorder guest saved regs to match hyperall order	2007-10-23 15:49:51 +10:00
lguest_hcall.h	lguest: make async_hcall() static	2007-11-05 21:53:29 +11:00
linkage.h	…
linkage_32.h	…
linkage_64.h	…
local.h	…
local_32.h	…
local_64.h	…
mach_apic.h	…
math_emu.h	…
mc146818rtc.h	…
mc146818rtc_32.h	…
mc146818rtc_64.h	…
mca.h	…
mca_dma.h	…
mce.h	x86: unify include/asm/mce_32/64.h	2007-10-17 20:16:44 +02:00
mman.h	x86: unify include/asm/mman_32/64.h	2007-10-17 20:26:15 +02:00
mmsegment.h	…
mmu.h	x86: merge mmu{,_32,_64}.h	2007-10-23 22:37:22 +02:00
mmu_context.h	…
mmu_context_32.h	…
mmu_context_64.h	…
mmx.h	…
mmzone.h	…
mmzone_32.h	…
mmzone_64.h	…
module.h	…
module_32.h	…
module_64.h	…
mpspec.h	…
mpspec_32.h	…
mpspec_64.h	…
mpspec_def.h	…
msgbuf.h	x86: merge msgbuf_32/64.h	2007-10-23 22:37:24 +02:00
msidef.h	…
msr-index.h	i386: i386 add AMD64 Barcelona PMU MSR definitions to msr.h	2007-10-19 20:35:03 +02:00
msr.h	x86: asm-x86/msr.h: pull in linux/types.h	2008-01-15 16:44:38 +01:00
mtrr.h	x86: merge mttr_32/64.h	2007-10-23 22:37:24 +02:00
mutex.h	…
mutex_32.h	…
mutex_64.h	…
namei.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
nmi.h	…
nmi_32.h	…
nmi_64.h	…
numa.h	…
numa_32.h	…
numa_64.h	x86: clean up apicid_to_node declaration	2007-10-17 20:15:16 +02:00
numaq.h	…
page.h	…
page_32.h	…
page_64.h	x86_64: SPARSEMEM_VMEMMAP 2M page size support	2007-10-16 09:42:51 -07:00
param.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
paravirt.h	paravirt: clean up lazy mode handling	2007-10-16 11:51:29 -07:00
parport.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
pci-direct.h	…
pci.h	…
pci_32.h	…
pci_64.h	x86 gart: rename CONFIG_IOMMU to CONFIG_GART_IOMMU	2007-10-30 00:22:22 +01:00
pda.h	x86: expand /proc/interrupts to include missing vectors, v2	2007-10-17 20:16:53 +02:00
percpu.h	…
percpu_32.h	…
percpu_64.h	…
pgalloc.h	…
pgalloc_32.h	…
pgalloc_64.h	…
pgtable-2level-defs.h	…
pgtable-2level.h	…
pgtable-3level-defs.h	paravirt: refactor struct paravirt_ops into smaller pv_*_ops	2007-10-16 11:51:29 -07:00
pgtable-3level.h	…
pgtable.h	…
pgtable_32.h	remove asm/bitops.h includes	2007-10-19 11:53:41 -07:00
pgtable_64.h	remove asm/bitops.h includes	2007-10-19 11:53:41 -07:00
poll.h	…
posix_types.h	…
posix_types_32.h	…
posix_types_64.h	…
prctl.h	…
processor-cyrix.h	…
processor-flags.h	…
processor.h	…
processor_32.h	x86: convert cpuinfo_x86 array to a per_cpu array	2007-10-19 20:35:04 +02:00
processor_64.h	x86: convert cpuinfo_x86 array to a per_cpu array	2007-10-19 20:35:04 +02:00
proto.h	x86: Unify i386 and x86-64 early quirks	2007-10-19 20:35:03 +02:00
ptrace-abi.h	x86: unify include/asm/ptrace-abi_32/64.h	2007-10-17 20:16:45 +02:00
ptrace.h	oprofile: fix oops on x86 32-bit	2007-11-14 18:45:44 -08:00
reboot.h	…
reboot_fixups.h	…
required-features.h	x86: merge required-features.h	2007-10-23 22:37:24 +02:00
resource.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
resume-trace.h	…
resume-trace_32.h	…
resume-trace_64.h	…
rio.h	…
rtc.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
rwlock.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
rwsem.h	…
scatterlist.h	…
scatterlist_32.h	Add CONFIG_DEBUG_SG sg validation	2007-10-22 21:20:03 +02:00
scatterlist_64.h	Add CONFIG_DEBUG_SG sg validation	2007-10-22 21:20:03 +02:00
seccomp.h	…
seccomp_32.h	…
seccomp_64.h	…
sections.h	x86: trivial header merges	2007-10-17 20:17:08 +02:00
segment.h	…
segment_32.h	…
segment_64.h	…
semaphore.h	…
semaphore_32.h	kill DECLARE_MUTEX_LOCKED	2007-10-17 08:42:47 -07:00
semaphore_64.h	kill DECLARE_MUTEX_LOCKED	2007-10-17 08:42:47 -07:00
sembuf.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
serial.h	x86: merge some trivially mergeable headers	2007-10-17 20:17:09 +02:00
setup.h	x86: clean up setup.h and the boot code	2007-10-23 22:37:25 +02:00
shmbuf.h	x86: merge shmbuf_32/64.h	2007-10-23 22:37:24 +02:00
shmparam.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
sigcontext.h	x86: merge sigcontext_32/64.h	2007-10-23 22:37:24 +02:00
sigcontext32.h	…
siginfo.h	x86: unify include/asm/siginfo_32/64.h	2007-10-17 20:26:17 +02:00
signal.h	x86: merge signal_32/64.h	2007-10-23 22:37:24 +02:00
smp.h	…
smp_32.h	Revert "i386: export i386 smp_call_function_mask() to modules"	2007-10-27 20:57:43 +02:00
smp_64.h	x86: add safe_smp_processor_id for x86_64	2007-10-23 22:37:23 +02:00
socket.h	…
sockios.h	x86: merge some trivially mergeable headers	2007-10-17 20:17:09 +02:00
sparsemem.h	…
sparsemem_32.h	…
sparsemem_64.h	…
spinlock.h	…
spinlock_32.h	…
spinlock_64.h	…
spinlock_types.h	…
srat.h	…
stacktrace.h	x86: constify stacktrace_ops	2007-10-17 20:16:11 +02:00
stat.h	x86: merge stat_32/64.h	2007-10-23 22:37:24 +02:00
statfs.h	x86: merge statfs_32/64.h	2007-10-23 22:37:24 +02:00
string.h	…
string_32.h	i386: Remove strrchr assembler implementation	2007-10-17 20:16:23 +02:00
string_64.h	…
suspend.h	…
suspend_32.h	…
suspend_64.h	x86: Save registers in saved_context during suspend and hibernation	2007-10-23 22:37:24 +02:00
swiotlb.h	…
sync_bitops.h	…
system.h	…
system_32.h	i386: consolidate show_regs and show_registers for i386	2007-10-19 20:35:03 +02:00
system_64.h	x86: also define AT_VECTOR_SIZE_ARCH	2007-12-18 18:05:58 +01:00
tce.h	…
termbits.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
termios.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
therm_throt.h	…
thread_info.h	…
thread_info_32.h	sched: high-res preemption tick	2008-01-25 21:08:29 +01:00
thread_info_64.h	sched: high-res preemption tick	2008-01-25 21:08:29 +01:00
time.h	…
timer.h	…
timex.h	…
tlb.h	x86: unify include/asm/tlb_32/64.h	2007-10-17 20:26:18 +02:00
tlbflush.h	…
tlbflush_32.h	remove unused flush_tlb_pgtables	2007-10-19 11:53:34 -07:00
tlbflush_64.h	remove unused flush_tlb_pgtables	2007-10-19 11:53:34 -07:00
topology.h	…
topology_32.h	x86: convert cpuinfo_x86 array to a per_cpu array	2007-10-19 20:35:04 +02:00
topology_64.h	Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86	2007-10-19 15:06:00 -07:00
tsc.h	…
types.h	x86: unify include/asm/types_32/64.h	2007-10-17 20:32:07 +02:00
uaccess.h	…
uaccess_32.h	…
uaccess_64.h	…
ucontext.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
unaligned.h	x86: unify some more trivial include/asm-x86/ 32/64 variants	2007-10-17 20:17:10 +02:00
unistd.h	…
unistd_32.h	…
unistd_64.h	x86: cleanup 64bit unistd.h	2007-10-17 20:16:36 +02:00
unwind.h	x86: unify include/asm/unwind_32/64.h	2007-10-17 20:32:38 +02:00
user.h	…
user32.h	…
user_32.h	…
user_64.h	…
vga.h	…
vgtod.h	…
vic.h	…
vm86.h	…
vmi.h	…
vmi_time.h	…
voyager.h	…
vsyscall.h	…
vsyscall32.h	…
xor.h	…
xor_32.h	…
xor_64.h	…