Luigi Semenzato ee2ad71b07 mm: smaps: split PSS into components ... Report separate components (anon, file, and shmem) for PSS in smaps_rollup. This helps understand and tune the memory manager behavior in consumer devices, particularly mobile devices. Many of them (e.g. chromebooks and Android-based devices) use zram for anon memory, and perform disk reads for discarded file pages. The difference in latency is large (e.g. reading a single page from SSD is 30 times slower than decompressing a zram page on one popular device), thus it is useful to know how much of the PSS is anon vs. file. All the information is already present in /proc/pid/smaps, but much more expensive to obtain because of the large size of that procfs entry. This patch also removes a small code duplication in smaps_account, which would have gotten worse otherwise. Also updated Documentation/filesystems/proc.txt (the smaps section was a bit stale, and I added a smaps_rollup section) and Documentation/ABI/testing/procfs-smaps_rollup. [semenzato@chromium.org: v5] Link: http://lkml.kernel.org/r/20190626234333.44608-1-semenzato@chromium.org Link: http://lkml.kernel.org/r/20190626180429.174569-1-semenzato@chromium.org Signed-off-by: Luigi Semenzato <semenzato@chromium.org> Acked-by: Yu Zhao <yuzhao@chromium.org> Cc: Sonny Rao <sonnyrao@chromium.org> Cc: Yu Zhao <yuzhao@chromium.org> Cc: Brian Geffon <bgeffon@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-07-12 11:05:47 -07:00
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ABI	mm: smaps: split PSS into components	2019-07-12 11:05:47 -07:00
EDID	docs: EDID/HOWTO.txt: convert it and rename to howto.rst	2019-06-14 14:32:29 -06:00
PCI	…
RCU	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
accelerators	docs: mark orphan documents as such	2019-06-08 13:42:11 -06:00
accounting	psi: introduce psi monitor	2019-05-14 19:52:48 -07:00
acpi/dsd	docs: fix broken documentation links	2019-06-08 13:42:13 -06:00
admin-guide	mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options	2019-07-12 11:05:46 -07:00
aoe	docs: aoe: convert docs to ReST and rename to *.rst	2019-06-14 14:20:22 -06:00
arm	docs: mark orphan documents as such	2019-06-08 13:42:11 -06:00
arm64	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
auxdisplay	…
backlight	…
block	for-5.3/block-20190708	2019-07-09 10:45:06 -07:00
blockdev	…
bpf	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
bus-devices	…
cdrom	docs: ide: convert docs to ReST and rename to *.rst	2019-06-14 14:21:18 -06:00
cgroup-v1	for-5.3/block-20190708	2019-07-09 10:45:06 -07:00
cma	…
connector	…
console	…
core-api	asm-generic, x86: add bitops instrumentation for KASAN	2019-07-12 11:05:42 -07:00
cpu-freq	…
crypto	crypto: doc - Fix formatting of new crypto engine content	2019-07-03 22:13:12 +08:00
dev-tools	docs: kmemleak: add more documentation details	2019-07-12 11:05:42 -07:00
device-mapper	docs: convert docs to ReST and rename to *.rst	2019-06-14 14:21:04 -06:00
devicetree	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
doc-guide	Doc : doc-guide : Fix a typo	2019-06-28 09:04:14 -06:00
driver-api	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
driver-model	i2c: core: add device-managed version of i2c_new_dummy	2019-05-17 19:29:40 +02:00
early-userspace	…
fault-injection	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
fb	docs: fb: Add TER16x32 to the available font names	2019-06-20 13:55:20 -06:00
features	Documentation/stackprotector: powerpc supports stack protector	2019-06-14 14:44:43 -06:00
filesystems	mm: smaps: split PSS into components	2019-07-12 11:05:47 -07:00
firmware-guide	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
firmware_class	…
fpga	docs: fpga: convert docs to ReST and rename to *.rst	2019-06-14 14:21:15 -06:00
gpio	…
gpu	docs: mark orphan documents as such	2019-06-08 13:42:11 -06:00
hid	docs: stop suggesting strlcpy	2019-06-20 14:08:49 -06:00
hwmon	…
i2c	docs: stop suggesting strlcpy	2019-06-20 14:08:49 -06:00
ia64	…
ide	docs: ide: convert docs to ReST and rename to *.rst	2019-06-14 14:21:18 -06:00
iio	…
infiniband	…
input	…
interconnect	docs: mark orphan documents as such	2019-06-08 13:42:11 -06:00
ioctl	…
isdn	isdn: remove isdn4linux	2019-05-31 11:13:10 +02:00
kbuild	docs: kbuild: convert docs to ReST and rename to *.rst	2019-06-14 14:21:21 -06:00
kdump	docs: kdump: convert docs to ReST and rename to *.rst	2019-06-14 14:21:24 -06:00
kernel-hacking	docs: stop suggesting strlcpy	2019-06-20 14:08:49 -06:00
laptops	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
leds	docs: leds: convert to ReST	2019-06-28 20:57:31 +02:00
lightnvm	…
livepatch	…
locking	locking/lockdep: Add explanation to lock usage rules in lockdep design doc	2019-06-03 11:55:48 +02:00
m68k	…
maintainer	docs: Add a document on repository management	2019-06-18 09:33:16 -06:00
md	…
media	media: doc-rst: Fix typos	2019-06-27 07:35:47 -04:00
memory-devices	…
mic	docs: mic: convert docs to ReST and rename to *.rst	2019-06-14 14:23:26 -06:00
mips	…
misc-devices	…
mmc	…
mtd	…
namespaces	…
netlabel	docs: netlabel: convert docs to ReST and rename to *.rst	2019-06-14 14:23:30 -06:00
networking	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
nfc	…
nios2	…
nvdimm	Documentation: nvdimm: Fix typo	2019-06-07 11:39:04 -06:00
nvmem	…
openrisc	…
parisc	…
pcmcia	docs: pcmcia: convert docs to ReST and rename to *.rst	2019-06-14 14:23:35 -06:00
perf	…
phy	…
power	…
powerpc	docs: kdump: convert docs to ReST and rename to *.rst	2019-06-14 14:21:24 -06:00
process	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
pti	…
rapidio	…
riscv	docs: riscv: convert docs to ReST and rename to *.rst	2019-06-14 14:31:32 -06:00
s390	docs: s390: s390dbf: typos and formatting, update crash command	2019-07-05 13:42:24 +02:00
scheduler	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
scsi	…
security	Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"	2019-07-10 18:43:43 -07:00
serial	…
sh	…
sound	…
sparc	…
sphinx	docs: automarkup.py: ignore exceptions when seeking for xrefs	2019-07-08 14:35:47 -06:00
sphinx-static	…
spi	…
sysctl	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
target	docs: target: convert docs to ReST and rename to *.rst	2019-06-14 14:31:36 -06:00
thermal	…
timers	docs: timers: convert docs to ReST and rename to *.rst	2019-06-14 14:31:48 -06:00
trace	docs: trace: add a missing blank line	2019-06-20 14:05:46 -06:00
translations	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
usb	USB: rio500: update Documentation	2019-05-21 10:11:19 +02:00
userspace-api	Documentation: Add section about CPU vulnerabilities for Spectre	2019-06-26 11:42:41 -06:00
virtual	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
vm	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
w1	…
watchdog	docs: watchdog: convert docs to ReST and rename to *.rst	2019-06-14 14:32:05 -06:00
wimax	…
x86	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
xilinx	docs: xilinx: convert eemi.txt to eemi.rst	2019-06-14 14:32:10 -06:00
xtensa	…
.gitignore	…
Changes	…
CodingStyle	…
DMA-API-HOWTO.txt	DMA mapping updates for 5.2	2019-05-09 08:40:55 -07:00
DMA-API.txt	Documentation: DMA-API: fix a function name of max_mapping_size	2019-06-07 11:10:33 -06:00
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ-domain.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Kconfig	docs: Kbuild/Makefile: allow check for missing docs at build time	2019-06-07 11:33:16 -06:00
Makefile	docs: Kbuild/Makefile: allow check for missing docs at build time	2019-06-07 11:33:16 -06:00
SAK.txt	…
SM501.txt	…
SubmittingPatches	…
atomic_bitops.txt	…
atomic_t.txt	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-07-08 16:12:03 -07:00
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	…
clearing-warn-once.txt	…
conf.py	Disable Sphinx SmartyPants in HTML output	2019-06-30 15:30:34 -06:00
cpu-load.txt	…
cputopology.txt	topology: Create core_cpus and die_cpus sysfs attributes	2019-05-23 10:08:34 +02:00
crc32.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
dell_rbu.txt	…
digsig.txt	…
docutils.conf	doc-rst: Add missing newline at end of file	2019-06-20 14:16:56 -06:00
dontdiff	…
efi-stub.txt	…
eisa.txt	…
futex-requeue-pi.txt	…
gcc-plugins.txt	…
highuid.txt	…
hw_random.txt	…
hwspinlock.txt	…
index.rst	Documentation: Remove duplicate x86 index entry	2019-06-14 11:02:13 -06:00
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	block: document iostat changes for disk busy time accounting	2019-06-14 14:46:43 -06:00
irqflags-tracing.txt	…
isa.txt	…
isapnp.txt	…
kernel-per-CPU-kthreads.txt	docs: watchdog: convert docs to ReST and rename to *.rst	2019-06-14 14:32:05 -06:00
kobject.txt	…
kprobes.txt	…
kref.txt	…
ldm.txt	…
lockup-watchdogs.txt	…
logo.gif	…
logo.txt	…
lsm.txt	…
lzo.txt	…
mailbox.txt	…
memory-barriers.txt	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
men-chameleon-bus.txt	…
nommu-mmap.txt	…
ntb.txt	…
numastat.txt	…
packing.txt	…
padata.txt	…
parport-lowlevel.txt	…
percpu-rw-semaphore.txt	…
phy.txt	…
pi-futex.txt	…
pnp.txt	…
preempt-locking.txt	…
pwm.txt	pwm: Add power management descriptions	2019-06-26 11:39:11 +02:00
rbtree.txt	…
remoteproc.txt	…
rfkill.txt	…
robust-futex-ABI.txt	…
robust-futexes.txt	…
rpmsg.txt	…
rtc.txt	…
sgi-ioc4.txt	…
siphash.txt	…
smsc_ece1099.txt	…
speculation.txt	…
static-keys.txt	…
svga.txt	…
switchtec.txt	…
sync_file.txt	…
tee.txt	Documentation: tee: Grammar s/the its/its/	2019-06-07 11:23:38 -06:00
this_cpu_ops.txt	…
unaligned-memory-access.txt	…
vfio-mediated-device.txt	…
vfio.txt	…
video-output.txt	…
xillybus.txt	…
xz.txt	…
zorro.txt	…