Ken Chen
480b9434c5
sched: reduce schedstat variable overhead a bit
...
schedstat is useful in investigating CPU scheduler behavior. Ideally,
I think it is beneficial to have it on all the time. However, the
cost of turning it on in production system is quite high, largely due
to number of events it collects and also due to its large memory
footprint.
Most of the fields probably don't need to be full 64-bit on 64-bit
arch. Rolling over 4 billion events will most like take a long time
and user space tool can be made to accommodate that. I'm proposing
kernel to cut back most of variable width on 64-bit system. (note,
the following patch doesn't affect 32-bit system).
Signed-off-by: Ken Chen <kenchen@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-18 21:32:56 +02:00
..
acpi
asm-alpha
increase AT_VECTOR_SIZE to terminate saved_auxv properly
2007-10-17 08:43:00 -07:00
asm-arm
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-arm26
softlockup: make asm/irq_regs.h available on every platform
2007-10-17 08:42:47 -07:00
asm-avr32
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-blackfin
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-cris
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-frv
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-generic
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-h8300
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-ia64
increase AT_VECTOR_SIZE to terminate saved_auxv properly
2007-10-17 08:43:00 -07:00
asm-m32r
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-m68k
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-m68knommu
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-mips
[MIPS] Alchemy: Renumber interrupts so irq_cpu can work.
2007-10-17 18:28:48 +01:00
asm-parisc
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-powerpc
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
2007-10-17 09:05:55 -07:00
asm-ppc
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
2007-10-17 09:05:55 -07:00
asm-s390
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-sh
increase AT_VECTOR_SIZE to terminate saved_auxv properly
2007-10-17 08:43:00 -07:00
asm-sh64
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-sparc
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-sparc64
Remove dma_cache_(wback|inv|wback_inv) functions
2007-10-17 08:42:57 -07:00
asm-um
x86: rename .i assembler includes to .h
2007-10-17 20:16:29 +02:00
asm-v850
remove include/asm-*/ipc.h
2007-10-17 08:42:55 -07:00
asm-x86
Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/tglx/linux-2.6-x86
2007-10-17 13:13:16 -07:00
asm-xtensa
remove strict ansi check from __u64 in asm/types.h
2007-10-17 08:42:53 -07:00
crypto
[CRYPTO] sha: Add header file for SHA definitions
2007-10-10 16:55:50 -07:00
keys
KEYS: Make request_key() and co fundamentally asynchronous
2007-10-17 08:42:57 -07:00
linux
sched: reduce schedstat variable overhead a bit
2007-10-18 21:32:56 +02:00
math-emu
media
v4l: copy_to_user() is not a good method name
2007-10-13 09:58:59 -07:00
mtd
net
9p: remove sysctl
2007-10-17 14:35:15 -05:00
pcmcia
pcmcia: use DMA_MASK_NONE for the default for all pcmcia devices
2007-10-16 09:42:50 -07:00
rdma
rxrpc
scsi
do not export /usr/include/scsi in make headers_install
2007-10-17 08:42:52 -07:00
sound
[ALSA] version 1.0.15
2007-10-16 16:57:46 +02:00
video
pm2fb: hardware cursor support for the Permedia2
2007-10-16 09:43:18 -07:00
xen
xen: fix incorrect vcpu_register_vcpu_info hypercall argument
2007-10-16 11:51:31 -07:00
Kbuild
do not export /usr/include/scsi in make headers_install
2007-10-17 08:42:52 -07:00