android_kernel_asus_sm8350/Documentation
Suren Baghdasaryan d7c408834c FROMGIT: cgroup: make per-cgroup pressure stall tracking configurable
PSI accounts stalls for each cgroup separately and aggregates it at each
level of the hierarchy. This causes additional overhead with psi_avgs_work
being called for each cgroup in the hierarchy. psi_avgs_work has been
highly optimized, however on systems with large number of cgroups the
overhead becomes noticeable.
Systems which use PSI only at the system level could avoid this overhead
if PSI can be configured to skip per-cgroup stall accounting.
Add "cgroup_disable=pressure" kernel command-line option to allow
requesting system-wide only pressure stall accounting. When set, it
keeps system-wide accounting under /proc/pressure/ but skips accounting
for individual cgroups and does not expose PSI nodes in cgroup hierarchy.

Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Link:  https://lore.kernel.org/patchwork/patch/1435705
(cherry picked from commit 3958e2d0c34e18c41b60dc01832bd670a59ef70f
 https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git tj).

Bug: 178872719
Bug: 191734423
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ifc8fbc52f9a1131d7c2668edbb44c525c76c3360
Git-commit: 51d71fb0b369ebb739658bf6555e8a01c6073e98
Git-repo: https://android.googlesource.com/kernel/common/
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
2021-07-19 11:35:36 +05:30
..
ABI Merge android11-5.4.61+ (54e6ca5) into msm-5.4 2020-09-04 15:09:32 -07:00
accounting
admin-guide FROMGIT: cgroup: make per-cgroup pressure stall tracking configurable 2021-07-19 11:35:36 +05:30
arm msm: rdbg: Add snapshot of remote debugger driver 2020-05-26 12:50:12 +05:30
arm64 UPSTREAM: Documentation: arm64: document support for the AMU extension 2020-11-18 17:58:21 +00:00
block Revert "BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series" 2020-03-07 13:06:47 -08:00
bpf
cdrom
core-api Modules fixes for v5.4-rc3 2019-10-11 10:19:24 -07:00
cpu-freq Documentation: cpufreq: Update policy notifier documentation 2019-09-02 22:44:05 +02:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2019-09-18 12:11:14 -07:00
dev-tools UPSTREAM: kcov: fix struct layout for kcov_remote_arg 2020-01-15 14:55:05 +00:00
device-mapper
devicetree This is the 5.4.82 stable release 2020-12-08 11:39:00 +01:00
doc-guide
driver-api Merge android11-5.4.86+ (75c93eb) into msm-5.4 2021-04-22 09:44:51 +05:30
EDID
fault-injection
fb fbdev: fix numbering of fbcon options 2020-02-24 08:36:42 +01:00
features It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
filesystems Merge android11-5.4.86+ (ccdcd30) into msm-5.4 2021-05-03 00:23:07 +05:30
firmware_class
firmware-guide Documentation: ACPI: DSD: Convert LED documentation to ReST 2019-08-20 23:53:46 +02:00
fpga Documentation: fpga: dfl: add descriptions for virtualization and new interfaces. 2019-09-03 19:35:42 -07:00
gpu Merge drm/drm-next into drm-intel-next-queued 2019-08-22 00:10:36 -07:00
hid
hwmon hwmon: docs: Extend inspur-ipsps1 title underline 2019-10-07 05:56:57 -07:00
i2c
ia64
ide
iio
infiniband Documentation/infiniband: update name of some functions 2019-09-13 16:55:55 -03:00
input Input: docs: fix spelling mistake "potocol" -> "protocol" 2019-08-06 11:24:49 -06:00
ioctl FROMLIST: docs: ioctl-number: document fscrypt ioctl numbers 2019-10-30 13:15:53 -07:00
isdn
kbuild kbuild: support LLVM=1 to switch the default tools to Clang/LLVM 2020-08-26 10:40:47 +02:00
kernel-hacking Revert "ANDROID: Revert "Merge tag 'modules-for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux"" 2019-11-13 10:14:45 +00:00
leds
livepatch
locking doc🔒 remove reference to clever use of read-write lock 2019-09-14 01:53:27 -06:00
m68k
maintainer docs: Fix typo on pull requests guide 2019-08-12 15:14:14 -06:00
media This is the 5.4.75 stable release 2020-11-05 13:27:24 +01:00
mic
mips Main MIPS changes for v5.4: 2019-09-22 09:30:30 -07:00
misc-devices Docs: misc: xilinx_sdfec: Add documentation 2019-08-15 17:54:38 +02:00
netlabel
networking This is the 5.4.78 stable release 2020-11-19 08:52:52 +01:00
nios2
openrisc
parisc
PCI Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-08-27 14:23:31 -07:00
pcmcia
power Merge branches 'pm-opp', 'pm-qos', 'acpi-pm', 'pm-domains' and 'pm-tools' 2019-09-17 09:49:19 +02:00
powerpc docs: powerpc: Add missing documentation reference 2019-09-17 23:59:34 +10:00
process Documentation/process: Add fallthrough pseudo-keyword 2019-10-11 09:26:05 -07:00
RCU Merge branches 'consolidate.2019.08.01b', 'fixes.2019.08.12a', 'lists.2019.08.13a' and 'torture.2019.08.01b' into HEAD 2019-08-13 14:30:30 -07:00
riscv It's a somewhat calmer cycle for docs this time, as the churn of the mass 2019-09-17 16:22:26 -07:00
s390 Documentation/s390: remove outdated debugging390 documentation 2019-08-21 12:41:43 +02:00
scheduler sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices 2019-08-08 09:09:30 +02:00
scsi scsi: smartpqi: Update attribute name to driver_version 2020-01-17 19:48:27 +01:00
security Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity 2019-09-27 19:37:27 -07:00
sh
sound Merge android-5.4-stable.45 (a9a13ee) into msm-5.4 2020-07-09 17:51:24 -07:00
sparc
sphinx Documentation: sphinx: Don't parse socket() as identifier reference 2019-08-12 14:55:30 -06:00
sphinx-static
spi
target
timers
trace Tracing updates: 2019-09-20 11:19:48 -07:00
translations doc: arm64: fix grammar dtb placed in no attributes region 2019-09-06 08:44:34 -06:00
usb UPSTREAM: usb: raw-gadget: documentation updates 2020-06-02 06:37:15 +00:00
userspace-api
virt KVM: mmu: Fix SPTE encoding of MMIO generation upper half 2020-12-21 13:27:06 +01:00
virtual
vm mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
w1
watchdog linux-watchdog 5.4-rc1 tag 2019-09-27 11:17:38 -07:00
x86 x86/CPU/AMD: Save AMD NodeId as cpu_die_id 2020-12-30 11:51:47 +01:00
xtensa xtensa: fix TLBTEMP area placement 2020-11-24 13:29:22 +01:00
.gitignore
asm-annotations.rst linkage: Introduce new macros for assembler symbols 2020-11-10 12:37:24 +01:00
atomic_bitops.txt
atomic_t.txt
bus-virt-phys-mapping.txt
Changes
CodingStyle
conf.py
COPYING-logo
crc32.txt
debugging-modules.txt
debugging-via-ohci1394.txt
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt dma-mapping: remove dma_release_declared_memory 2019-09-04 11:13:19 +02:00
DMA-attributes.txt
DMA-ISA-LPC.txt
docutils.conf
dontdiff
futex-requeue-pi.txt
hwspinlock.txt
index.rst linkage: Introduce new macros for assembler symbols 2020-11-10 12:37:24 +01:00
io_ordering.txt
io-mapping.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
Kconfig
kobject.txt
kprobes.txt
kref.txt
logo.gif
lzo.txt lib/lzo: fix ambiguous encoding bug in lzo-rle 2020-06-17 16:40:28 +02:00
mailbox.txt
Makefile
memory-barriers.txt
mhi.txt mhi: add snapshot for MHI driver stack 2019-12-25 21:32:42 -08:00
nommu-mmap.txt
padata.txt padata: allocate workqueue internally 2019-09-13 21:15:39 +10:00
percpu-rw-semaphore.txt
pi-futex.txt
preempt-locking.txt
rbtree.txt
remoteproc.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
speculation.txt
static-keys.txt
SubmittingPatches
tee.txt
this_cpu_ops.txt
unaligned-memory-access.txt
xz.txt