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linux/drivers
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Bob Liu 73716df7da xen/blkfront: make persistent grants pool per-queue 
Make persistent grants per-queue/ring instead of per-device, so that we can
drop the 'dev_lock' and get better scalability.

Test was done based on null_blk driver:
dom0: v4.2-rc8 16vcpus 10GB "modprobe null_blk"
domu: v4.2-rc8 16vcpus 10GB

[test]
rw=read
direct=1
ioengine=libaio
bs=4k
time_based
runtime=30
filename=/dev/xvdb
numjobs=16
iodepth=64
iodepth_batch=64
iodepth_batch_complete=64
group_reporting

Queues:			  1 	   4 	  	  8 	 	 16
Iops orig(k):		810 	1064 		780 		700
Iops patched(k):	810     1230(~20%)	1024(~20%)	850(~20%)

Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2016-01-04 12:21:03 -05:00
..
accessibility
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acpi
Merge branches 'acpi-smbus', 'acpi-ec' and 'acpi-pci'
2015-11-20 01:22:52 +01:00
amba
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android
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ata
SCSI misc on 20151113
2015-11-13 20:35:54 -08:00
atm
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auxdisplay
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base
Merge branch 'pm-sleep'
2015-11-20 01:22:33 +01:00
bcma
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block
xen/blkfront: make persistent grants pool per-queue
2016-01-04 12:21:03 -05:00
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
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char
ipmi watchdog : add panic_wdt_timeout parameter
2015-11-16 06:28:43 -06:00
clk
h8300 update for v4.4
2015-11-12 15:26:39 -08:00
clocksource
clocksource: Disallow drivers for ARCH_USES_GETTIMEOFFSET
2015-11-16 19:07:08 +01:00
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
Merge branches 'pm-cpufreq' and 'acpi-cppc'
2015-11-20 01:22:10 +01:00
cpuidle
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crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2015-11-17 09:40:05 -08:00
dca
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devfreq
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dio
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dma
dmaengine: at_hdmac: use %pad format string for dma_addr_t
2015-11-16 09:21:05 +05:30
dma-buf
dma-buf/fence: add fence_wait_any_timeout function v2
2015-10-30 01:16:16 -04:00
edac
asm-generic cleanups
2015-11-06 14:22:15 -08:00
eisa
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extcon
Merge branches 'ib-extcon-mfd-4.4', 'ib-mfd-i2c-v4.4', 'ib-mfd-power-4.4', 'ib-mfd-regmap-4.4' and 'ib-mfd-regulator-4.4' into ibs-for-mfd-merged
2015-10-26 14:48:22 +00:00
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
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fpga
fpga: socfpga: Fix check of return value of devm_request_irq
2015-10-29 15:20:25 -07:00
gpio
asm-generic cleanups
2015-11-06 14:22:15 -08:00
gpu
Merge tag 'drm-intel-fixes-2015-11-19' of git://anongit.freedesktop.org/drm-intel into drm-fixes
2015-11-20 09:45:31 +10:00
hid
HID: wacom: fixup quirks setup for WACOM_DEVICETYPE_PAD
2015-11-17 00:24:14 +01:00
hsi
hsi: controllers:remove redundant code
2015-10-30 16:10:40 +01:00
hv
drivers/hv: share Hyper-V SynIC constants with userspace
2015-11-04 16:24:33 +01:00
hwmon
hwmon: (scpi) skip unsupported sensors properly
2015-11-16 09:59:50 -08:00
hwspinlock
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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
i2c: i801: add Intel Lewisburg device IDs
2015-11-20 16:22:21 +01:00
ide
mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM
2015-11-06 17:50:42 -08:00
idle
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iio
First set of IIO fixes for the 4.4 cycle.
2015-11-18 13:15:50 -08:00
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
s390/pci_dma: handle dma table failures
2015-11-09 09:10:49 +01:00
ipack
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irqchip
irqchip/gic: Add save/restore of the active state
2015-11-17 14:25:59 +01:00
isdn
TTY/Serial driver patches for 4.4-rc1
2015-11-04 21:35:12 -08:00
leds
spi: Updates for v4.4
2015-11-05 13:15:12 -08:00
lguest
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lightnvm
lightnvm: add free and bad lun info to show luns
2015-11-20 08:33:21 -07:00
macintosh
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mailbox
mailbox: mailbox-test: avoid reading iomem twice
2015-11-04 14:03:04 +05:30
mcb
mcb: Destroy IDA on module unload
2015-10-29 09:02:16 +09:00
md
bcache: Change refill_dirty() to always scan entire disk if necessary
2015-12-30 20:23:16 -07:00
media
various: fix pci_set_dma_mask return value checking
2015-11-20 16:17:32 -08:00
memory
ARM: SoC driver updates for v4.4
2015-11-10 15:00:03 -08:00
memstick
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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
mmc: remove bondage between REQ_META and reliable write
2015-11-09 14:04:52 +01:00
mtd
mtd: nand: fix shutdown/reboot for multi-chip systems
2015-11-16 10:51:39 -08:00
net
various: fix pci_set_dma_mask return value checking
2015-11-20 16:17:32 -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
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nvdimm
libnvdimm, pmem: fix size trim in pmem_direct_access()
2015-11-12 09:55:23 -08:00
nvme
nvme: add missing unmaps in nvme_queue_rq
2015-11-24 15:24:05 -07:00
nvmem
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of
More power management and ACPI updates for v4.4-rc1
2015-11-12 11:50:33 -08:00
oprofile
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parisc
pci: remove pci_dma_supported
2015-11-10 16:32:11 -08:00
parport
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pci
Merge branches 'acpi-smbus', 'acpi-ec' and 'acpi-pci'
2015-11-20 01:22:52 +01:00
pcmcia
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perf
arm64 updates for 4.4:
2015-11-04 14:47:13 -08:00
phy
phy: qcom-ufs: fix build error when the component is built as a module
2015-11-09 17:44:24 -05:00
pinctrl
This is the bulk of GPIO changes for v4.4:
2015-11-02 12:59:12 -08:00
platform
platform/chrome: Branch for v4.4
2015-11-13 21:53:18 -08:00
pnp
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power
- New Device Support
2015-11-06 10:23:50 -08:00
powercap
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pps
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ps3
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ptp
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pwm
pwm: Changes for v4.4-rc1
2015-11-11 09:16:10 -08:00
rapidio
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ras
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regulator
spi: Updates for v4.4
2015-11-05 13:15:12 -08:00
remoteproc
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reset
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rpmsg
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rtc
RTC for 4.4
2015-11-10 10:01:21 -08:00
s390
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2015-11-18 08:59:29 -08:00
sbus
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scsi
SCSI misc on 20151113
2015-11-13 20:35:54 -08:00
sfi
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sh
drivers: sh: Get rid of CONFIG_ARCH_SHMOBILE_MULTI
2015-11-17 02:12:46 +09:00
sn
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soc
ARM: SoC driver updates for v4.4
2015-11-10 15:00:03 -08:00
spi
Merge remote-tracking branches 'spi/topic/s3c64xx', 'spi/topic/ti-qspi' and 'spi/topic/txx9' into spi-next
2015-11-04 11:02:16 +00:00
spmi
char/misc drivers for 4.4-rc1
2015-11-04 22:15:15 -08:00
ssb
ssb: add Kconfig entry for compiling SoC related code
2015-10-28 21:05:21 +02:00
staging
Revert "Staging: wilc1000: coreconfigurator: Drop unneeded wrapper functions"
2015-11-18 13:22:44 -08:00
target
SCSI misc on 20151113
2015-11-13 20:35:54 -08:00
tc
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thermal
thermal: rockchip: fix compile error
2015-11-11 19:52:39 -08:00
thunderbolt
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tty
serial: export fsl8250_handle_irq
2015-11-20 16:19:54 -08:00
uio
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usb
usblp: do not set TASK_INTERRUPTIBLE before lock
2015-11-19 16:31:42 -08:00
uwb
driver core update for 4.4-rc1
2015-11-04 21:50:37 -08:00
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
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virtio
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vlynq
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vme
char/misc drivers for 4.4-rc1
2015-11-04 22:15:15 -08:00
w1
power supply and reset changes for the v4.4 series
2015-11-05 12:28:15 -08:00
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
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Kconfig
char/misc drivers for 4.4-rc1
2015-11-04 22:15:15 -08:00
Makefile
null_blk: register as a LightNVM device
2015-11-16 15:22:28 -07:00