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Arnd Bergmann 2a911f0bb7 [PATCH] spufs: Improved SPU preemptability [part 2]. 
This patch reduces lock complexity of SPU scheduler, particularly
for involuntary preemptive switches.  As a result the new code
does a better job of mapping the highest priority tasks to SPUs.

Lock complexity is reduced by using the system default workqueue
to perform involuntary saves.  In this way we avoid nasty lock
ordering problems that the previous code had.  A "minimum timeslice"
for SPU contexts is also introduced.  The intent here is to avoid
thrashing.

While the new scheduler does a better job at prioritization it
still does nothing for fairness.

From: Mark Nutter <mnutter@us.ibm.com>
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09 14:52:58 +11:00
..
acpi [ACPI] increase owner_id limit to 64 from 32 2005-12-21 04:52:16 -05:00
asm-alpha [PATCH] Alpha: convert to generic irq framework (alpha part) 2006-01-06 08:33:40 -08:00
asm-arm [ARM] byteorder.h needs linux/compiler.h 2006-01-07 16:55:50 +00:00
asm-arm26 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-cris [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-frv [PATCH] frv: improve signal handling 2006-01-06 08:33:33 -08:00
asm-generic [PATCH] x86/x86_64: mark rodata section read only: generic infrastructure 2006-01-06 08:33:36 -08:00
asm-h8300 [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
asm-i386 [PATCH] mpspec: remove unneeded packed attribute 2006-01-06 08:33:39 -08:00
asm-ia64 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-m32r [PATCH] m32r: Remove unnecessary icu_data_t definitions 2006-01-06 08:33:44 -08:00
asm-m68k [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
asm-m68knommu [PATCH] m68knommu: remove enable_irq_nosync() 2006-01-06 08:33:44 -08:00
asm-mips [PATCH] mips: remove include/asm-mips/riscos-syscall.h 2006-01-06 08:33:33 -08:00
asm-parisc [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-powerpc [PATCH] spufs: Improved SPU preemptability [part 2]. 2006-01-09 14:52:58 +11:00
asm-ppc [PATCH] powerpc: Update OF address parsers 2006-01-09 14:51:26 +11:00
asm-s390 [PATCH] s390: cleanup Kconfig 2006-01-06 08:33:53 -08:00
asm-sh [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-sh64 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-sparc [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-sparc64 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-um [PATCH] uml: eliminate anonymous union and clean up symlink lossage 2005-11-22 09:13:41 -08:00
asm-v850 [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
asm-x86_64 [PATCH] cpu hotplug/x86_64: disable interrupt in play_dead 2006-01-06 08:33:39 -08:00
asm-xtensa [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 2006-01-06 08:33:29 -08:00
keys [PATCH] Keys: Remove key duplication 2006-01-06 08:33:29 -08:00
linux [PATCH] spufs: The SPU file system, base 2006-01-09 14:49:12 +11:00
math-emu
media Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6 2006-01-06 15:25:08 -08:00
mtd [MTD] user-abi: Clean up trailing white spaces 2005-11-07 14:43:11 +01:00
net [NET]: Change sk_run_filter()'s return type in net/core/filter.c 2006-01-06 13:08:20 -08:00
pcmcia [PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback 2006-01-06 00:03:24 +01:00
rdma [IB] uverbs: have kernel return QP capabilities 2005-11-10 10:22:50 -08:00
rxrpc [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
scsi Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block 2006-01-06 09:01:25 -08:00
sound [ALSA] Revert the nested-device patch 2006-01-04 10:13:48 +01:00
video [PATCH] drivers/video: Replace custom macro with isdigit() 2005-09-13 08:22:33 -07:00