Venki Pallipadi bde6f5f59c x86: voluntary leave_mm before entering ACPI C3 ... Aviod TLB flush IPIs during C3 states by voluntary leave_mm() before entering C3. The performance impact of TLB flush on C3 should not be significant with respect to C3 wakeup latency. Also, CPUs tend to flush TLB in hardware while in C3 anyways. On a 8 logical CPU system, running make -j2, the number of tlbflush IPIs goes down from 40 per second to ~ 0. Total number of interrupts during the run of this workload was ~1200 per second, which makes it ~3% savings in wakeups. There was no measurable performance or power impact however. [ akpm@linux-foundation.org: symbol export fixes. ] Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2008-01-30 13:32:01 +01:00
..
acorn/char
acpi	x86: voluntary leave_mm before entering ACPI C3	2008-01-30 13:32:01 +01:00
amba
ata	libata: Change "write_data" to "rw" for some function documentations	2008-01-29 08:48:17 +11:00
atm	[ATM]: [he] fixing compilation when you define USE_RBPS_POOL/USE_RBPL_POOL	2008-01-28 15:00:15 -08:00
auxdisplay
base	convert drivers/base/power/Makefile to ccflags	2008-01-28 23:14:35 +01:00
block	cciss: fix bug in overriding ->data_len before completion	2008-01-29 21:55:18 +01:00
bluetooth
cdrom	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-01-29 08:52:50 +11:00
char	x86: clean up drivers/char/rtc.c	2008-01-30 13:31:09 +01:00
clocksource
connector	[NETNS]: Consolidate kernel netlink socket destruction.	2008-01-28 15:08:07 -08:00
cpufreq	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
cpuidle	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
crypto	[S390] crypto: move s390 Kconfig options.	2008-01-26 14:11:17 +01:00
dca
dio
dma	DMA: Convert from class_device to device for DMA engine	2008-01-24 20:40:05 -08:00
edac	Driver core: change sysdev classes to use dynamic kobject names	2008-01-24 20:40:40 -08:00
eisa
firewire
firmware	x86: fix DMI out of memory problems	2008-01-30 13:31:59 +01:00
hid	HID: ADS/Tech Radio si470x needs blacklist entry	2008-01-28 14:51:23 +01:00
hwmon
i2c	Merge branch 'orion' into devel	2008-01-28 13:21:30 +00:00
ide	blk_end_request: changing ide-cd (take 4)	2008-01-28 10:37:06 +01:00
ieee1394	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2008-01-25 17:19:08 -08:00
infiniband	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25	2008-01-29 22:54:01 +11:00
input	x86: replace outb_p() with udelay(2) in drivers/input/mouse/pc110pad.c	2008-01-30 13:31:24 +01:00
isdn	Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6	2008-01-25 08:35:13 -08:00
kvm	x86: get rid of _MASK flags	2008-01-30 13:31:27 +01:00
leds
lguest	x86: use generic register name in the thread and tss structures	2008-01-30 13:31:02 +01:00
macintosh	i2c: Kill rogue driver IDs	2008-01-27 18:14:47 +01:00
mca
md	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
media	i2c: Drivers stop using the redundant client list	2008-01-27 18:14:51 +01:00
message	blk_end_request: changing i2o_block (take 4)	2008-01-28 10:36:50 +01:00
mfd	[ARM] Fix class_device damage caused by 0c55445f20	2008-01-28 10:59:09 +00:00
misc	kobject: convert ibmasm to use kref, not kobject	2008-01-24 20:40:08 -08:00
mmc	Merge branch 'blk-end-request' of git://git.kernel.dk/linux-2.6-block	2008-01-29 08:51:32 +11:00
mtd	mtd: Convert from class_device to device for MTD/mtdchar	2008-01-24 20:40:06 -08:00
net	Mostly revert "e1000/e1000e: Move PCI-Express device IDs over to e1000e"	2008-01-30 09:54:54 +11:00
nubus
of
oprofile
parisc	[PARISC]: Fix build after ipv4_is_*() changes.	2008-01-28 14:58:20 -08:00
parport
pci	Kobject: convert drivers/* from kobject_unregister() to kobject_put()	2008-01-24 20:40:40 -08:00
pcmcia	[ARM] pxa: move memory controller registers into pxa2xx-regs.h	2008-01-26 15:07:54 +00:00
pnp
power	power supply : use class iteration api	2008-01-24 20:40:44 -08:00
ps3
rapidio	remove __attribute_used__	2008-01-28 23:21:18 +01:00
rtc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-01-29 08:52:50 +11:00
s390	[VLAN]: Turn VLAN_DEV_INFO into inline function	2008-01-28 15:08:32 -08:00
sbus
scsi	[NETNS]: Consolidate kernel netlink socket destruction.	2008-01-28 15:08:07 -08:00
serial	Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6	2008-01-29 08:52:50 +11:00
sh
sn
spi	[ARM] pxa: make pxa2xx_spi driver use ssp_request()/ssp_free()	2008-01-26 15:07:52 +00:00
ssb	ssb: Add boardflags_hi field to the sprom data structure	2008-01-28 15:09:52 -08:00
tc
telephony
uio	UIO: constify function pointer tables	2008-01-24 20:40:43 -08:00
usb	Merge branch 'pxa-plat' into devel	2008-01-28 13:21:38 +00:00
video	Merge branches 'at91', 'ep93xx', 'iop', 'kprobes', 'ks8695', 'misc', 'msm', 's3c2410', 'sa1100' and 'vfp' into devel	2008-01-28 13:21:21 +00:00
virtio
w1	i2c: normal_i2c can be made const (remaining drivers)	2008-01-27 18:14:47 +01:00
watchdog	[WATCHDOG] constify function pointer tables	2008-01-25 20:41:30 +00:00
xen
zorro
Kconfig
Makefile