redonkable/alistair23-linux
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alistair23-linux/include
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Ingo Molnar 1799e35d5b sched: add /proc/sys/kernel/sched_compat_yield 
add /proc/sys/kernel/sched_compat_yield to make sys_sched_yield()
more agressive, by moving the yielding task to the last position
in the rbtree.

with sched_compat_yield=0:

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  2539 mingo     20   0  1576  252  204 R   50  0.0   0:02.03 loop_yield
  2541 mingo     20   0  1576  244  196 R   50  0.0   0:02.05 loop

with sched_compat_yield=1:

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  2584 mingo     20   0  1576  248  196 R   99  0.0   0:52.45 loop
  2582 mingo     20   0  1576  256  204 R    0  0.0   0:00.00 loop_yield

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2007-09-19 23:34:46 +02:00
..
acpi Pull events into release branch 2007-08-25 01:44:01 -04:00
asm-alpha Fix Alpha O_CLOEXEC definition 2007-08-09 08:39:22 -07:00
asm-arm Merge branch 'omap-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2007-08-25 12:38:47 +01:00
asm-avr32 [AVR32] Define mmiowb() 2007-08-15 16:36:56 +02:00
asm-blackfin Blackfin arch: fix some bugs in lib/string.h functions found by our string testing modules 2007-09-12 16:30:15 +08:00
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 Define termios_1 functions for powerpc, s390, avr32 and frv 2007-09-12 09:08:05 -07:00
asm-h8300 remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-i386 Pull bugzilla-1641 into release branch 2007-08-24 22:19:05 -04:00
asm-ia64 [IA64] Cleanup HPSIM code (was: Re: Enable early console for Ski simulator) 2007-09-01 02:52:25 -07:00
asm-m32r m32r: Rename STI/CLI macros 2007-09-06 11:10:56 +09:00
asm-m68k m68k(nommu): add missing syscalls 2007-09-11 17:21:20 -07:00
asm-m68knommu m68k(nommu): add missing syscalls 2007-09-11 17:21:20 -07:00
asm-mips [MIPS] cpu-bugs64.c: GCC 3.3 constraint workaround 2007-09-19 19:33:14 +01:00
asm-parisc [PARISC] Add dummy isa_(bus|virt)_to_(virt|bus) inlines 2007-08-27 00:29:22 -04:00
asm-powerpc [POWERPC] Fix timekeeping on PowerPC 601 2007-09-19 15:26:34 +10:00
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 [SPARC32]: Make flush_tlb_kernel_range() an inline function. 2007-08-26 18:49:12 -07:00
asm-sparc64 [SPARC64]: Fix lockdep, particularly on SMP. 2007-09-16 11:51:15 -07:00
asm-um UML: Fix ELF_CORE_COPY_REGS build botch 2007-09-10 18:58:05 -07:00
asm-v850 remove unused TIF_NOTIFY_RESUME flag 2007-07-31 15:39:38 -07:00
asm-x86_64 Pull bugzilla-1641 into release branch 2007-08-24 22:19:05 -04:00
asm-xtensa [patch 1/2] Xtensa: enable arbitary tty speed setting ioctls 2007-08-27 13:54:25 -07:00
crypto
keys
linux sched: add /proc/sys/kernel/sched_compat_yield 2007-09-19 23:34:46 +02:00
math-emu Fix <math-emu/soft-fp.h> tpyo 2007-08-18 17:15:17 -07:00
media V4L/DVB (6220a): fix build error for et61x251 driver 2007-09-14 13:39:12 -03:00
mtd UBI: kill homegrown endian macros 2007-07-18 16:53:49 +03:00
net [SCTP]: Convert bind_addr_list locking to RCU 2007-09-16 16:03:28 -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
scsi [SCSI] libiscsi: sync up iscsi and scsi eh's access to the connection 2007-08-15 13:09:21 -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
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