Peter Zijlstra b82d9fdd84 sched: avoid large irq-latencies in smp-balancing ...

SMP balancing is done with IRQs disabled and can iterate the full rq.
When rqs are large this can cause large irq-latencies. Limit the nr of
iterations on each run.

This fixes a scheduling latency regression reported by the -rt folks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Gregory Haskins <ghaskins@novell.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2007-11-09 22:39:39 +01:00

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acpi

ACPI: Fan: Drop force_power_state acpi_device option

2007-10-25 16:31:31 -04:00

asm-alpha

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asm-arm

[ARM] 4634/1: DaVinci GPIO header build fix

2007-10-31 15:21:52 +00:00

asm-avr32

AVR32: Fix sg_page breakage

2007-10-24 10:16:02 +02:00

asm-blackfin

Blackfin arch: use a less common define name in BF549

2007-10-30 12:04:53 +08:00

asm-cris

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asm-frv

SG: Change sg_set_page() to take length and offset argument

2007-10-24 11:20:47 +02:00

asm-generic

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asm-h8300

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asm-ia64

[IA64] fix typo in per_cpu_offset

2007-10-29 11:21:45 -07:00

asm-m32r

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asm-m68k

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asm-m68knommu

m68knommu: fix pread/pwrite defines

2007-11-05 15:12:33 -08:00

asm-mips

Use i8253.c lock for PC speaker on MIPS, too.

2007-11-02 19:39:18 -07:00

asm-parisc

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asm-powerpc

cpm_load_patch() - declartion conflict

2007-11-05 11:38:29 -08:00

asm-ppc

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asm-s390

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asm-sh

sh: Decouple 4k and soft/hardirq stacks.

2007-11-02 12:16:51 +09:00

asm-sh64

sh64: fix dma_cache_sync() compilation

2007-10-30 13:09:01 +09:00

asm-sparc

[SPARC32]: __inline__ --> inline

2007-10-27 00:17:01 -07:00

asm-sparc64

[SPARC64]: Fix linkage of enormous kernels.

2007-10-31 15:30:56 -07:00

asm-um

x86 merge fallout: uml

2007-10-29 07:41:32 -07:00

asm-v850

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asm-x86

lguest: make async_hcall() static

2007-11-05 21:53:29 +11:00

asm-xtensa

xtensa: dma-mapping.h is using linux/scatterlist.h functions, so include it

2007-10-24 13:28:40 +02:00

crypto

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keys

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linux

sched: avoid large irq-latencies in smp-balancing

2007-11-09 22:39:39 +01:00

math-emu

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media

[PATCH] Fix breakage after SG cleanups

2007-10-23 12:02:39 -07:00

mtd

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net

cleanup asm/scatterlist.h includes

2007-11-02 08:47:06 +01:00

pcmcia

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rdma

cleanup asm/scatterlist.h includes

2007-11-02 08:47:06 +01:00

rxrpc

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scsi

SCSI: add asynchronous event notification API

2007-11-03 22:23:02 -04:00

sound

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video

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xen

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Kbuild

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