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Suresh Siddha f8700df7c4 sched: fix broken SMT/MC optimizations 
On a four package system with HT - HT load balancing optimizations were
broken.  For example, if two tasks end up running on two logical threads
of one of the packages, scheduler is not able to pull one of the tasks
to a completely idle package.

In this scenario, for nice-0 tasks, imbalance calculated by scheduler
will be 512 and find_busiest_queue() will return 0 (as each cpu's load
is 1024 > imbalance and has only one task running).

Similarly MC scheduler optimizations also get fixed with this patch.

[ mingo@elte.hu: restored fair balancing by increasing the fuzz and
                 adding it back to the power decision, without the /2
                 factor. ]

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 		2007-08-23 15:18:02 +02:00
..
acpi acpi-cpufreq: Fix some x86/x86-64 acpi-cpufreq driver issues 2007-08-07 18:40:30 -04:00
asm-alpha Fix Alpha O_CLOEXEC definition 2007-08-09 08:39:22 -07:00
asm-arm [ARM] 4531/1: remove is_in_rom() protptype 2007-08-04 22:13:43 +01:00
asm-avr32 [AVR32] Define mmiowb() 2007-08-15 16:36:56 +02:00
asm-blackfin remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-cris remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-frv FRV: connect up fallocate 2007-08-11 15:47:40 -07:00
asm-generic changing include/asm-generic/pgtable.h for non-mmu 2007-08-11 15:47:42 -07:00
asm-h8300 remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-i386 x86_64: Fix to keep watchdog disabled by default for i386/x86_64 2007-08-18 10:25:25 -07:00
asm-ia64 [IA64] SN2 needs platform specific irq_to_vector() function. 2007-08-13 10:31:26 -07:00
asm-m32r remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-m68k m68k: Enable arbitary speed tty support 2007-08-22 19:52:45 -07:00
asm-m68knommu remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-mips Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2007-07-31 20:41:53 -07:00
asm-parisc Fix WARN_ON() on bitfield ops for all other archs 2007-08-01 20:45:38 -07:00
asm-powerpc [POWERPC] Fix FSL BookE machine check reporting 2007-08-17 13:22:28 -05:00
asm-ppc [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support 2007-07-24 21:16:02 +00:00
asm-s390 [S390] Change atomic_read/set to inline functions with barrier semantics. 2007-08-22 13:51:49 +02:00
asm-sh sh: Add missing dma_sync_single_range_for_*(). 2007-08-10 02:37:01 +09:00
asm-sh64 sh64: Add missing dma_sync_single_for_*(). 2007-08-10 02:47:31 +09:00
asm-sparc [MATH-EMU]: Fix underflow exception reporting. 2007-08-16 22:59:49 -07:00
asm-sparc64 [SPARC64]: Need to clobber global reg vars in switch_to(). 2007-08-20 23:40:00 -07:00
asm-um arch: personality independent stack top 2007-07-19 10:04:45 -07:00
asm-v850 remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-x86_64 x86_64: Fix to keep watchdog disabled by default for i386/x86_64 2007-08-18 10:25:25 -07:00
asm-xtensa remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
crypto
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keys
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linux sched: fix broken SMT/MC optimizations 2007-08-23 15:18:02 +02:00
math-emu Fix <math-emu/soft-fp.h> tpyo 2007-08-18 17:15:17 -07:00
media V4L/DVB (5835): saa7146/dvb-ttpci: Fix signedness warnings (gcc 4.1.1, kernel 2.6.22) 2007-07-18 14:24:44 -03:00
mtd UBI: kill homegrown endian macros 2007-07-18 16:53:49 +03:00
net [NETFILTER]: nf_nat: add symbolic dependency on IPv4 conntrack 2007-08-07 18:12:01 -07:00
pcmcia PCMCIA-NETDEV : add new ID of lan&modem multifunction card 2007-07-08 22:16:39 -04:00
rdma IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.c 2007-08-03 10:45:18 -07:00
rxrpc
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scsi [SCSI] sd: disentangle barriers in SCSI 2007-08-04 08:37:04 -05:00
sound [ALSA] version 1.0.14 2007-07-20 11:13:35 +02:00
video remove tx3912fb 2007-07-31 15:39:41 -07:00
xen xen: xen/page.h compile fix 2007-07-26 11:35:16 -07:00
Kbuild
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