Rik van Riel efddfd90fb cpuidle,menu: smooth out measured_us calculation ... The cpuidle state tables contain the maximum exit latency for each cpuidle state. On x86, that is the exit latency for when the entire package goes into that same idle state. However, a lot of the time we only go into the core idle state, not the package idle state. This means we see a much smaller exit latency. We have no way to detect whether we went into the core or package idle state while idle, and that is ok. However, the current menu_update logic does have the potential to trip up the repeating pattern detection in get_typical_interval. If the system is experiencing an exit latency near the idle state's exit latency, some of the samples will have exit_us subtracted, while others will not. This turns a repeating pattern into mush, potentially breaking get_typical_interval. Furthermore, for smaller sleep intervals, we know the chance that all the cores in the package went to the same idle state are fairly small. Dividing the measured_us by two, instead of subtracting the full exit latency when hitting a small measured_us, will reduce the error. Signed-off-by: Rik van Riel <riel@redhat.com> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>		2015-11-17 02:24:25 +01:00
..
accessibility
acpi	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
amba
android
ata	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
atm
auxdisplay
base	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
bcma
block	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2015-11-13 09:24:40 -08:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-10 18:11:41 -08:00
bus	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
cdrom
char	Merge tag 'tpmdd-next-20151110' of https://github.com/jsakkine/linux-tpmdd into for-linus	2015-11-12 20:38:04 +11:00
clk	h8300 update for v4.4	2015-11-12 15:26:39 -08:00
clocksource	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-11-15 09:10:53 -08:00
connector	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
cpufreq	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
cpuidle	cpuidle,menu: smooth out measured_us calculation	2015-11-17 02:24:25 +01:00
crypto	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
dca
devfreq
dio
dma	dmaengine updates for 4.4-rc1	2015-11-10 10:05:17 -08:00
dma-buf
edac	asm-generic cleanups	2015-11-06 14:22:15 -08:00
eisa
extcon
firewire	IEEE 1394 subsystem patch:	2015-11-11 10:21:34 -08:00
firmware	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
fmc
fpga
gpio	asm-generic cleanups	2015-11-06 14:22:15 -08:00
gpu	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2015-11-13 09:12:38 -08:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2015-11-07 12:49:27 -08:00
hsi
hv
hwmon	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
hwspinlock
hwtracing	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
i2c	Merge branch 'i2c/for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2015-11-10 11:58:25 -08:00
ide	mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM	2015-11-06 17:50:42 -08:00
idle
iio
infiniband	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2015-11-13 21:41:14 -08:00
iommu	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
ipack
irqchip	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2015-11-15 09:10:53 -08:00
isdn
leds
lguest
lightnvm	block: change ->make_request_fn() and users to return a queue cookie	2015-11-07 10:40:46 -07:00
macintosh
mailbox
mcb
md	Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block	2015-11-10 17:23:49 -08:00
media	netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported	2015-11-10 16:32:11 -08:00
memory	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
memstick
message	SCSI queue for 4.4.	2015-11-12 07:06:18 -05:00
mfd	asm-generic cleanups	2015-11-06 14:22:15 -08:00
misc	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
mmc
mtd	This pull request includes the following UBI/UBIFS changes:	2015-11-10 16:35:06 -08:00
net	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
nfc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-10 18:11:41 -08:00
ntb	NTB: fix 32-bit compiler warning	2015-11-08 16:24:43 -05:00
nubus
nvdimm	libnvdimm, pmem: fix size trim in pmem_direct_access()	2015-11-12 09:55:23 -08:00
nvme	NVMe: add support for Apple NVMe controller	2015-11-11 09:36:57 -07:00
nvmem
of	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
oprofile
parisc	pci: remove pci_dma_supported	2015-11-10 16:32:11 -08:00
parport
pci	More power management and ACPI updates for v4.4-rc1	2015-11-12 11:50:33 -08:00
pcmcia
perf
phy	phy: qcom-ufs: fix build error when the component is built as a module	2015-11-09 17:44:24 -05:00
pinctrl
platform	platform/chrome: Branch for v4.4	2015-11-13 21:53:18 -08:00
pnp
power
powercap
pps
ps3
ptp
pwm	pwm: Changes for v4.4-rc1	2015-11-11 09:16:10 -08:00
rapidio
ras
regulator
remoteproc
reset
rpmsg
rtc	RTC for 4.4	2015-11-10 10:01:21 -08:00
s390	block: change ->make_request_fn() and users to return a queue cookie	2015-11-07 10:40:46 -07:00
sbus
scsi	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
sfi
sh
sn
soc	ARM: SoC driver updates for v4.4	2015-11-10 15:00:03 -08:00
spi
spmi
ssb
staging	Merge branch 'for-4.4/io-poll' of git://git.kernel.dk/linux-block	2015-11-10 17:23:49 -08:00
target	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
tc
thermal	thermal: rockchip: fix compile error	2015-11-11 19:52:39 -08:00
thunderbolt
tty	asm-generic cleanups	2015-11-06 14:22:15 -08:00
uio
usb	SCSI misc on 20151113	2015-11-13 20:35:54 -08:00
uwb
vfio	VFIO updates for v4.4-rc1	2015-11-13 17:05:32 -08:00
vhost	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
video	fbdev changes for 4.4	2015-11-10 10:00:09 -08:00
virt
virtio
vlynq
vme
w1
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2015-11-10 10:11:12 -08:00
xen	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-11-13 20:04:17 -08:00
zorro
Kconfig
Makefile