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Paolo Valente 68017e5d87 doc, block, bfq: update max IOPS sustainable with BFQ 
We have investigated more deeply the performance of BFQ, in terms of
number of IOPS that can be processed by the CPU when BFQ is used as
I/O scheduler. In more detail, using the script [1], we have measured
the number of IOPS reached on top of a null block device configured
with zero latency, as a function of the workload (sequential read,
sequential write, random read, random write) and of the system (we
considered desktops, laptops and embedded systems).

Basing on the resulting figures, with this commit we update the
current, conservative IOPS range reported in BFQ documentation. In
particular, the documentation now reports, for each of three different
systems, the lowest number of IOPS obtained for that system with the
above test (namely, the value obtained with the workload leading to
the lowest IOPS).

[1] https://github.com/Algodev-github/IOSpeed

Reviewed-by: Lee Tibbert <lee.tibbert@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Luca Miccio <lucmiccio@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 		2017-11-14 20:13:33 -07:00
..
ABI This is the bulk of GPIO changes for the v4.15 kernel cycle: 2017-11-14 17:23:44 -08:00
EDID drm: use .hword to represent 16-bit numbers 2017-03-30 10:15:19 +02:00
PCI docs: update old references for DocBook from the documentation 2017-05-16 08:44:19 -03:00
RCU Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 12:18:10 -08:00
accounting
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acpi ACPI / LPIT: Add Low Power Idle Table (LPIT) support 2017-10-11 15:38:10 +02:00
admin-guide Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:33:11 -08:00
aoe
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arm Documentation: arm: Replace use of virt_to_phys with __pa_symbol 2017-07-17 13:43:58 -06:00
arm64 irqchip/gic-v3-its: Workaround HiSilicon Hip07 redistributor addressing 2017-10-19 11:22:40 +01:00
auxdisplay
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backlight
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blackfin samples: move blackfin gptimers-example from Documentation 2016-10-10 07:12:02 -06:00
block doc, block, bfq: update max IOPS sustainable with BFQ 2017-11-14 20:13:33 -07:00
blockdev SCSI misc on 20170907 2017-09-07 21:11:05 -07:00
bus-devices
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cdrom documentation: Update ide-cd documentation to reflect CONFIG_BLK_DEV_HD_IDE removal 2017-10-12 11:25:31 -06:00
cgroup-v1 mm, vmpressure: pass-through notification support 2017-07-10 16:32:31 -07:00
cma
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connector
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console
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core-api A relatively calm cycle for the docs tree again. 2017-11-13 08:25:06 -08:00
cpu-freq cpufreq: stats: Handle the case when trans_table goes beyond PAGE_SIZE 2017-11-08 23:41:25 +01:00
cpuidle
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cris
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crypto crypto: doc - adapt api sample to use async. op wait 2017-11-03 22:11:23 +08:00
dev-tools docs: dev-tools: correct Coccinelle version number 2017-10-19 12:55:24 -06:00
device-mapper dm raid: fix incorrect status output at the end of a "recover" process 2017-10-05 16:21:30 -04:00
devicetree DeviceTree for 4.15: 2017-11-14 18:25:40 -08:00
doc-guide Documentation: fix ref to sphinx/kerneldoc.py 2017-10-19 12:57:10 -06:00
driver-api SCSI misc on 20171114 2017-11-14 16:23:44 -08:00
driver-model driver core: remove DRIVER_ATTR 2017-09-19 09:20:33 +02:00
early-userspace Documentation: Fix dead URLs to ftp.kernel.org 2017-03-29 15:46:06 -06:00
extcon extcon: Remove porting compatibility of swich class 2017-04-06 10:55:24 +09:00
fault-injection cpu/hotplug: Get rid of CPU hotplug notifier leftovers 2017-11-13 10:03:53 +01:00
fb documentation: fb: update list of available compiled-in fonts 2017-11-08 03:39:52 -07:00
features Documentation/features/KASAN: mark KASAN as supported only on 64-bit on x86 2017-10-03 14:40:22 -06:00
filesystems Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2017-11-14 14:13:11 -08:00
firmware_class firmware: revamp firmware documentation 2017-01-11 09:42:59 +01:00
fmc
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fpga fpga: Add scatterlist based programming 2017-02-10 15:20:44 +01:00
frv docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
gpio gpio: Move irq_valid_mask into struct gpio_irq_chip 2017-11-08 14:10:18 +01:00
gpu Merge tag 'drm-intel-next-2017-08-18' of git://anongit.freedesktop.org/git/drm-intel into drm-next 2017-08-22 10:03:07 +10:00
hid Documentation: fix input related doc refs 2017-10-12 11:14:06 -06:00
hwmon pmbus: Add driver for Maxim MAX31785 Intelligent Fan Controller 2017-11-05 06:06:33 -08:00
i2c i2c: i801: Add support for Intel Cedar Fork 2017-10-05 14:44:56 +02:00
ia64
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ide
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iio iio: adc: New driver for Cirrus Logic EP93xx ADC 2017-07-25 19:56:23 +01:00
infiniband Documentation: Hardware tag matching 2017-08-29 08:30:21 -04:00
input Documentation: fix input related doc refs 2017-10-12 11:14:06 -06:00
ioctl scsi: cxlflash: Introduce host ioctl support 2017-06-26 15:01:11 -04:00
isdn docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
kbuild DeviceTree for 4.15: 2017-11-14 18:25:40 -08:00
kdump kexec/kdump: minor Documentation updates for arm64 and Image 2017-07-12 16:26:00 -07:00
kernel-hacking There has been a fair amount of activity in the docs tree this time 2017-07-03 21:13:25 -07:00
laptops Documentation: fix admin-guide doc refs 2017-10-12 11:13:28 -06:00
leds Documentation: leds: Update 00-INDEX file 2017-10-23 20:17:03 +02:00
lightnvm lightnvm: physical block device (pblk) target 2017-04-16 10:06:33 -06:00
livepatch livepatch: allow removal of a disabled patch 2017-03-08 09:38:43 +01:00
locking Documentation: fix locking rt-mutex doc refs 2017-10-19 12:56:44 -06:00
m68k docs: fix locations of several documents that got moved 2016-10-24 08:12:35 -02:00
md md-cluster: update document for raid10 2017-11-01 21:32:25 -07:00
media Documentation: fix media related doc refs 2017-10-12 11:15:06 -06:00
memory-devices
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metag
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mic
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mips
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misc-devices Documentation: misc-devices: Add Documentation for pci-endpoint-test driver 2017-04-28 10:23:19 -05:00
mmc MMC core: 2017-05-02 17:34:32 -07:00
mn10300
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mtd spi-nor: Add support for Intel SPI serial flash controller 2017-01-03 17:33:36 +00:00
namespaces
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netlabel
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networking A relatively calm cycle for the docs tree again. 2017-11-13 08:25:06 -08:00
nfc
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nios2
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nvdimm
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nvmem NVMEM documentation fix: A minor typo 2017-08-24 13:31:58 -06:00
openrisc Documentation: openrisc: Updates to README 2017-10-30 21:37:53 +09:00
parisc
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pcmcia
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perf perf: qcom: Add L3 cache PMU driver 2017-04-03 18:53:50 +01:00
phy
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platform
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power Power management updates for v4.15-rc1 2017-11-13 19:43:50 -08:00
powerpc powerpc updates for 4.13 2017-07-07 13:55:45 -07:00
pps drivers/pps: aesthetic tweaks to PPS-related content 2017-09-08 18:26:51 -07:00
process A relatively calm cycle for the docs tree again. 2017-11-13 08:25:06 -08:00
pti
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ptp
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rapidio
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s390 docs: add documentation for vfio-ccw 2017-03-31 12:55:11 +02:00
scheduler sched/deadline: Add documentation about GRUB reclaiming 2017-06-08 10:31:56 +02:00
scsi scsi: smartpqi: correct spelling error in documentation 2017-10-23 04:15:17 -04:00
security Documentation: fix security related doc refs 2017-10-12 11:14:40 -06:00
serial tty: n_gsm: do not send/receive in ldisc close path 2017-06-03 18:48:52 +09:00
sh docs-rst: convert sh book to ReST 2017-05-16 08:44:18 -03:00
sound sound updates for 4.15-rc1 2017-11-14 18:01:46 -08:00
sparc Documentation/sparc: Steps for sending break on sunhv console 2017-02-23 08:27:25 -08:00
sphinx Documentation/sphinx: fix kernel-doc decode for non-utf-8 locale 2017-08-31 13:36:28 -06:00
sphinx-static docs RTD theme: code-block with line nos - lines and line numbers don't line up. 2017-07-17 13:48:45 -06:00
spi spi: Document SPI slave controller support 2017-05-26 13:11:00 +01:00
sysctl docs: Update binfmt_misc links 2017-10-03 15:23:38 -06:00
target Documentation/target: add an example script to configure an iSCSI target 2017-05-01 22:21:35 -07:00
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-05-12 11:58:45 -07:00
timers docs: highres: fix broken urls 2017-09-26 14:58:23 -06:00
trace ftrace/docs: Add documentation on how to use ftrace from within the kernel 2017-11-05 09:55:29 -07:00
translations locking/barriers: Kill lockless_dereference() 2017-10-24 13:17:33 +02:00
usb Documentation: fix usb related doc refs 2017-10-12 11:15:48 -06:00
userspace-api seccomp: Implement SECCOMP_RET_KILL_PROCESS action 2017-08-14 13:46:50 -07:00
virtual KVM/ARM Changes for v4.14 2017-09-07 18:22:04 +02:00
vm hmm: heterogeneous memory management documentation 2017-09-08 18:26:45 -07:00
w1 w1: add documentation for w1_ds2438 2017-03-17 15:10:49 +09:00
watchdog Documentation: fix selftests related file refs 2017-10-19 12:58:21 -06:00
wimax
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x86 Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 19:05:19 -08:00
xtensa of: update ePAPR references to point to Devicetree Specification 2017-06-22 11:22:06 -05:00
.gitignore
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00-INDEX linux-kselftest-4.13-rc1-update 2017-07-07 14:04:47 -07:00
Changes docs: add back 'Documentation/Changes' file (as symlink) 2016-12-14 16:30:12 -08:00
CodingStyle doc: re-add CodingStyle and SubmittingPatches 2016-10-24 08:12:35 -02:00
DMA-API-HOWTO.txt DMA-API-HOWTO.txt: standardize document format 2017-07-14 13:51:32 -06:00
DMA-API.txt dma-coherent: remove the DMA_MEMORY_MAP and DMA_MEMORY_IO flags 2017-09-01 11:59:17 +02:00
DMA-ISA-LPC.txt DMA-ISA-LPC.txt: standardize document format 2017-07-14 13:51:33 -06:00
DMA-attributes.txt DMA-attributes.txt: standardize document format 2017-07-14 13:51:33 -06:00
IPMI.txt IPMI.txt: standardize document format 2017-07-14 13:51:40 -06:00
IRQ-affinity.txt IRQ-affinity.txt: standardize document format 2017-07-14 13:51:41 -06:00
IRQ-domain.txt IRQ-domain.txt: standardize document format 2017-07-14 13:51:41 -06:00
IRQ.txt IRQ.txt: add a markup for its title 2017-07-14 13:51:42 -06:00
Intel-IOMMU.txt Intel-IOMMU.txt: standardize document format 2017-07-14 13:51:38 -06:00
Makefile Documentation: add script and build target to check for broken file references 2017-10-12 11:07:42 -06:00
SAK.txt SAK.txt: standardize document format 2017-07-14 13:58:04 -06:00
SM501.txt SM501.txt: standardize document format 2017-07-14 13:58:06 -06:00
SubmittingPatches doc: re-add CodingStyle and SubmittingPatches 2016-10-24 08:12:35 -02:00
atomic_bitops.txt Documentation/locking/atomic: Add documents for new atomic_t APIs 2017-08-10 12:29:00 +02:00
atomic_t.txt Documentation/locking/atomic: Finish the document... 2017-08-25 11:06:33 +02:00
bcache.txt bcache.txt: standardize document format 2017-07-14 13:51:27 -06:00
bt8xxgpio.txt bt8xxgpio.txt: standardize document format 2017-07-14 13:51:27 -06:00
btmrvl.txt btmrvl.txt: standardize document format 2017-07-14 13:51:27 -06:00
bus-virt-phys-mapping.txt bus-virt-phys-mapping.txt: standardize document format 2017-07-14 13:51:28 -06:00
cachetlb.txt cachetlb.txt: standardize document format 2017-07-14 13:51:28 -06:00
cgroup-v2.txt cgroup: add cgroup.stat interface with basic hierarchy stats 2017-08-02 12:05:20 -07:00
circular-buffers.txt circular-buffers.txt: standardize document format 2017-07-14 13:51:29 -06:00
clk.txt clk.txt: standardize document format 2017-07-14 13:51:29 -06:00
conf.py docs-rst: don't require adjustbox anymore 2017-09-08 10:02:55 -06:00
cpu-load.txt cpu-load: standardize document format 2017-07-14 13:51:30 -06:00
cputopology.txt cputopology.txt: standardize document format 2017-07-14 13:51:30 -06:00
crc32.txt crc32.txt: standardize document format 2017-07-14 13:51:30 -06:00
dcdbas.txt dcdbas.txt: standardize document format 2017-07-14 13:51:31 -06:00
debugging-modules.txt
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debugging-via-ohci1394.txt debugging-via-ohci1394.txt: standardize document format 2017-07-14 13:51:34 -06:00
dell_rbu.txt dell_rbu.txt: standardize document format 2017-07-14 13:58:12 -06:00
digsig.txt digsig.txt: standardize document format 2017-07-14 13:51:31 -06:00
docutils.conf
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dontdiff Remove gperf usage from toolchain 2017-08-19 11:02:53 -07:00
efi-stub.txt efi-stub.txt: standardize document format 2017-07-14 13:51:34 -06:00
eisa.txt eisa.txt: standardize document format 2017-07-14 13:51:34 -06:00
errseq.rst Documentation: add some docs for errseq_t 2017-07-29 09:01:02 -04:00
flexible-arrays.txt flexible-arrays.txt: standardize document format 2017-07-14 13:51:35 -06:00
futex-requeue-pi.txt futex-requeue-pi.txt: standardize document format 2017-07-14 13:51:35 -06:00
gcc-plugins.txt gcc-plugins.txt: standardize document format 2017-07-14 13:51:36 -06:00
highuid.txt highuid.txt: standardize document format 2017-07-14 13:51:36 -06:00
hw_random.txt hw_random.txt: standardize document format 2017-07-14 13:51:37 -06:00
hwspinlock.txt hwspinlock.txt: standardize document format 2017-07-14 13:51:37 -06:00
index.rst Make the main documentation title less Geocities 2017-06-23 14:02:27 -06:00
intel_txt.txt intel_txt.txt: standardize document format 2017-07-14 13:51:38 -06:00
io-mapping.txt io-mapping.txt: standardize document format 2017-07-14 13:51:38 -06:00
io_ordering.txt io_ordering.txt: standardize document format 2017-07-14 13:51:39 -06:00
iostats.txt iostats.txt: update it to cover recent Kernels 2017-07-14 13:51:40 -06:00
irqflags-tracing.txt irqflags-tracing.txt: standardize document format 2017-07-14 13:51:42 -06:00
isa.txt isa.txt: standardize document format 2017-07-14 13:51:43 -06:00
isapnp.txt isapnp.txt: promote title level 2017-07-14 13:51:43 -06:00
kernel-doc-nano-HOWTO.txt docs: update old references for DocBook from the documentation 2017-05-16 08:44:19 -03:00
kernel-per-CPU-kthreads.txt kernel-per-CPU-kthreads.txt: standardize document format 2017-07-14 13:51:43 -06:00
kobject.txt kobject.txt: standardize document format 2017-07-14 13:51:44 -06:00
kprobes.txt kprobes/docs: Remove jprobes related documents 2017-10-20 11:02:55 +02:00
kref.txt kref.txt: standardize document format 2017-07-14 13:51:45 -06:00
ldm.txt ldm.txt: standardize document format 2017-07-14 13:51:45 -06:00
lockup-watchdogs.txt lockup-watchdogs.txt: standardize document format 2017-07-14 13:51:46 -06:00
logo.gif
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logo.txt
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lsm.txt docs-rst: convert lsm from DocBook to ReST 2017-05-16 08:44:19 -03:00
lzo.txt lzo.txt: standardize document format 2017-07-14 13:51:46 -06:00
mailbox.txt mailbox.txt: standardize document format 2017-07-14 13:51:47 -06:00
memory-barriers.txt Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 12:38:26 -08:00
memory-hotplug.txt memory-hotplug.txt: standardize document format 2017-07-14 13:57:53 -06:00
men-chameleon-bus.txt men-chameleon-bus.txt: standardize document format 2017-07-14 13:57:54 -06:00
nommu-mmap.txt nommu-mmap.txt: don't use all upper case on titles 2017-07-14 13:57:55 -06:00
ntb.txt This series converts a number of top-level documents to the RST format 2017-07-15 12:58:58 -07:00
numastat.txt numastat.txt: standardize document format 2017-07-14 13:57:56 -06:00
padata.txt padata.txt: standardize document format 2017-07-14 13:57:56 -06:00
parport-lowlevel.txt parport-lowlevel.txt: standardize document format 2017-07-14 13:57:57 -06:00
percpu-rw-semaphore.txt percpu-rw-semaphore.txt: standardize document format 2017-07-14 13:57:58 -06:00
phy.txt phy.txt: standardize document format 2017-07-14 13:57:58 -06:00
pi-futex.txt Documentation: fix locking rt-mutex doc refs 2017-10-19 12:56:44 -06:00
pnp.txt pnp.txt: standardize document format 2017-07-14 13:57:59 -06:00
preempt-locking.txt preempt-locking.txt: standardize document format 2017-07-14 13:58:00 -06:00
printk-formats.txt printk-formats.txt: Add examples for %pF and %pS usage 2017-08-24 18:49:52 +02:00
pwm.txt pwm: Standardize document format 2017-07-06 08:23:30 +02:00
rbtree.txt rbtree: cache leftmost node internally 2017-09-08 18:26:48 -07:00
remoteproc.txt remoteproc.txt: standardize document format 2017-07-14 13:58:02 -06:00
rfkill.txt rfkill.txt: standardize document format 2017-07-14 13:58:02 -06:00
robust-futex-ABI.txt robust-futex-ABI.txt: standardize document format 2017-07-14 13:58:03 -06:00
robust-futexes.txt robust-futexes.txt: standardize document format 2017-07-14 13:58:03 -06:00
rpmsg.txt rpmsg.txt: standardize document format 2017-07-14 13:58:04 -06:00
rtc.txt rtc: add generic nvmem support 2017-07-07 13:14:14 +02:00
sgi-ioc4.txt sgi-ioc4.txt: standardize document format 2017-07-14 13:58:05 -06:00
siphash.txt siphash.txt: standardize document format 2017-07-14 13:58:06 -06:00
smsc_ece1099.txt smsc_ece1099.txt: standardize document format 2017-07-14 13:58:07 -06:00
static-keys.txt jump_label: Provide hotplug context variants 2017-08-10 12:28:59 +02:00
svga.txt svga.txt: standardize document format 2017-07-14 13:58:08 -06:00
switchtec.txt switchtec: Add IOCTLs to the Switchtec driver 2017-04-12 12:23:37 -05:00
sync_file.txt sync_file.txt: standardize document format 2017-05-24 13:01:27 -03:00
tee.txt tee.txt: standardize document format 2017-07-14 13:58:14 -06:00
this_cpu_ops.txt this_cpu_ops.txt: standardize document format 2017-07-14 13:58:08 -06:00
unaligned-memory-access.txt unaligned-memory-access.txt: standardize document format 2017-07-14 13:58:09 -06:00
vfio-mediated-device.txt vfio-mediated-device.txt: standardize document format 2017-07-14 13:58:10 -06:00
vfio.txt vfio.txt: standardize document format 2017-07-14 13:58:10 -06:00
video-output.txt
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xillybus.txt xillybus.txt: standardize document format 2017-07-14 13:58:11 -06:00
xz.txt xz.txt: standardize document format 2017-07-14 13:58:11 -06:00
zorro.txt zorro.txt: standardize document format 2017-07-14 13:58:12 -06:00