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Xuewen Yan ccdec92198 workqueue: Control intensive warning threshold through cmdline
When CONFIG_WQ_CPU_INTENSIVE_REPORT is set, the kernel will report
the work functions which violate the intensive_threshold_us repeatedly.
And now, only when the violate times exceed 4 and is a power of 2,
the kernel warning could be triggered.

However, sometimes, even if a long work execution time occurs only once,
it may cause other work to be delayed for a long time. This may also
cause some problems sometimes.

In order to freely control the threshold of warninging, a boot argument
is added so that the user can control the warning threshold to be printed.
At the same time, keep the exponential backoff to prevent reporting too much.

By default, the warning threshold is 4.

tj: Updated kernel-parameters.txt description.

Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2024-02-22 07:50:45 -10:00
..
ABI hwmon updates for v6.8 2024-01-12 13:27:40 -08:00
accel accel/qaic: Expand DRM device lifecycle 2023-12-01 10:37:06 -07:00
accounting
admin-guide workqueue: Control intensive warning threshold through cmdline 2024-02-22 07:50:45 -10:00
arch Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
block The number of commits for documentation is not huge this time around, but 2023-11-01 17:11:41 -10:00
bpf Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
cdrom
core-api workqueue: Don't implicitly make UNBOUND workqueues w/ @max_active==1 ordered 2024-02-05 14:19:10 -10:00
cpu-freq
crypto Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
dev-tools Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
devicetree Devicetree for v6.8: 2024-01-12 15:05:30 -08:00
doc-guide docs: Raise the minimum Sphinx requirement to 2.4.4 2023-12-15 08:36:33 -07:00
driver-api pwm: Changes for v6.8-rc1 2024-01-12 14:59:50 -08:00
fault-injection
fb fbdev/intelfb: Remove driver 2024-01-12 12:38:37 +01:00
features Documentation: Drop IA64 from feature descriptions 2023-09-11 08:13:18 +00:00
filesystems dcache stuff for this cycle 2024-01-11 20:11:35 -08:00
firmware-guide ACPI: docs: enumeration: Clarify ACPI bus concepts 2023-10-06 17:29:53 +02:00
firmware_class
fpga
gpu amd-drm-next-6.8-2024-01-05: 2024-01-09 09:07:50 +10:00
hid
hwmon hwmon: (lm75) Add AMS AS6200 temperature sensor 2024-01-02 08:44:57 -08:00
i2c Documentation/i2c: fix spelling error in i2c-address-translators 2023-12-27 20:05:44 +01:00
iio
images
infiniband
input input: docs: properly format ToC headings 2023-11-17 13:05:26 -07:00
isdn
kbuild Kbuild updates for v6.7 2023-11-04 08:07:19 -10:00
kernel-hacking
leds
litmus-tests
livepatch docs: automarkup: linkify git revs 2023-11-17 13:13:24 -07:00
locking locking/mutex: Clarify that mutex_unlock(), and most other sleeping locks, can still use the lock object after it's unlocked 2024-01-08 09:55:31 +01:00
maintainer Documentation: xfs: consolidate XFS docs into its own subdirectory 2023-12-07 14:49:13 +05:30
mhi
misc-devices Merge branch 'vegard' into docs-mw 2023-11-17 13:07:51 -07:00
mm mm/rmap: rename COMPOUND_MAPPED to ENTIRELY_MAPPED 2023-12-29 11:58:56 -08:00
netlabel
netlink dpll: expose fractional frequency offset value to user 2024-01-05 07:58:19 -08:00
networking Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
nvdimm
nvme
PCI docs: move powerpc under arch 2023-10-10 13:35:55 -06:00
pcmcia
peci
power Documentation: PM: Adjust freezing-of-tasks.rst to the freezer changes 2023-12-19 21:14:32 +01:00
process Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
RAS Documentation: Begin a RAS section 2023-12-06 21:07:52 +01:00
RCU doc: Mention address and data dependencies in rcu_dereference.rst 2023-12-14 01:16:28 +05:30
rust docs: rust: Clarify that 'rustup override' applies to build directory 2023-12-21 22:47:40 +01:00
scheduler sched/fair: Remove SCHED_FEAT(UTIL_EST_FASTUP, true) 2023-12-23 15:59:56 +01:00
scsi SCSI misc on 20230902 2023-09-02 12:02:41 -07:00
security Documentation: Destage TEE subsystem documentation 2023-12-08 15:45:10 -07:00
sound ASoC: doc: Fix undefined SND_SOC_DAPM_NOPM argument 2023-11-21 17:02:22 +00:00
sphinx Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
sphinx-static docs: translations: add translations links when they exist 2023-12-19 14:34:59 -07:00
spi spi: pxa2xx: Update DMA mapping and using logic in the documentation 2023-12-08 17:50:00 +00:00
staging Documentation: Destage TEE subsystem documentation 2023-12-08 15:45:10 -07:00
target
tee Documentation: Destage TEE subsystem documentation 2023-12-08 15:45:10 -07:00
timers
tools rtla: fix a example in rtla-timerlat-hist.rst 2023-09-22 14:44:04 +02:00
trace Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
translations Another moderately busy cycle for documentation, including: 2024-01-11 19:46:52 -08:00
usb USB/Thunderbolt changes for 6.7-rc1 2023-11-03 16:00:42 -10:00
userspace-api fbdev fixes and cleanups for 6.8-rc1: 2024-01-12 14:38:08 -08:00
virt KVM/arm64 updates for 6.7 2023-10-31 16:37:07 -04:00
w1
watchdog
wmi Documentation work keeps chugging along; stuff for 6.6 includes: 2023-08-30 20:05:42 -07:00
.gitignore
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py docs: translations: add translations links when they exist 2023-12-19 14:34:59 -07:00
docutils.conf
dontdiff
index.rst Documentation: Begin a RAS section 2023-12-06 21:07:52 +01:00
Kconfig
Makefile doc/netlink: Regenerate netlink .rst files if ynl-gen-rst changes 2023-12-18 14:39:44 -08:00
memory-barriers.txt doc: Clarify historical disclaimers in memory-barriers.txt 2023-12-14 01:16:28 +05:30
SubmittingPatches
subsystem-apis.rst Documentation: Destage TEE subsystem documentation 2023-12-08 15:45:10 -07:00