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Connor O'Brien fcecefc007 ANDROID: cpufreq: times: optimize proc files 
The majority of the time spent reading /proc/uid_time_in_state is due
to seq_printf calls. Use the faster seq_put_* variations instead.

Also skip empty hash buckets in uid_seq_next for a further performance
improvement.

Bug: 111216804
Bug: 127641090
Test: Read /proc/uid_time_in_state and confirm output is sane
Test: Compare read times to confirm performance improvement
Change-Id: If8783b498ed73d2ddb186a49438af41ac5ab9957
Signed-off-by: Connor O'Brien <connoro@google.com>
2019-05-03 10:44:52 -07:00
arch
ANDROID: cuttlefish_defconfig: Enable CONFIG_CPU_FREQ_TIMES
2019-05-03 10:44:51 -07:00
block
block: don't deal with discard limit in blkdev_issue_discard()
2018-10-18 07:23:40 -06:00
certs
export.h: remove VMLINUX_SYMBOL() and VMLINUX_SYMBOL_STR()
2018-08-22 23:21:44 +09:00
crypto
Merge tag 'dmaengine-4.19-rc1' of git://git.infradead.org/users/vkoul/slave-dma
2018-08-18 15:55:59 -07:00
Documentation
ANDROID: cpufreq: times: add /proc/uid_concurrent_{active,policy}_time
2019-05-03 10:44:51 -07:00
drivers
ANDROID: cpufreq: times: optimize proc files
2019-05-03 10:44:52 -07:00
firmware
kbuild: remove all dummy assignments to obj-
2017-11-18 11:46:06 +09:00
fs
ANDROID: cpufreq: Add time_in_state to /proc/uid directories
2019-05-03 10:44:50 -07:00
include
ANDROID: cpufreq: times: record fast switch frequency transitions
2019-05-03 10:44:51 -07:00
init
Merge tag 'kbuild-v4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-08-25 13:40:38 -07:00
ipc
ipc/shm.c: use ERR_CAST() for shm_lock() error return
2018-10-05 16:32:04 -07:00
kernel
ANDROID: proc: Add /proc/uid directory
2019-05-03 10:44:50 -07:00
lib
test_ida: Fix lockdep warning
2018-10-15 16:31:29 -04:00
LICENSES
LICENSES: Remove CC-BY-SA-4.0 license text
2018-10-18 11:28:50 +02:00
mm
ANDROID: add extra free kbytes tunable
2019-05-03 10:40:06 -07:00
net
ANDROID: net: ipv6: autoconf routes into per-device tables
2019-05-03 10:42:46 -07:00
samples
samples: disable CONFIG_SAMPLES for UML
2018-10-11 02:15:46 +09:00
scripts
ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
2019-05-03 10:39:56 -07:00
security
ANDROID: security,perf: Allow further restriction of perf_event_open
2019-05-03 10:42:45 -07:00
sound
ALSA: hda/realtek - Cannot adjust speaker's volume on Dell XPS 27 7760
2018-10-04 07:50:48 +02:00
tools
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2018-10-20 15:02:51 +02:00
usr
initramfs: move gen_initramfs_list.sh from scripts/ to usr/
2018-08-22 23:21:44 +09:00
virt
KVM: Remove obsolete kvm_unmap_hva notifier backend
2018-09-07 15:06:02 +02:00
.clang-format
clang-format: Set IndentWrappedFunctionNames false
2018-08-01 18:38:51 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
…
.gitattributes
.gitattributes: set git diff driver for C source code files
2016-10-07 18:46:30 -07:00
.gitignore
Merge tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2018-04-15 17:21:30 -07:00
.mailmap
Merge tag 'libnvdimm-for-4.19_misc' of gitolite.kernel.org:pub/scm/linux/kernel/git/nvdimm/nvdimm
2018-08-25 18:13:10 -07:00
build.config.cuttlefish.aarch64
ANDROID: Move from clang r346389b to r349610.
2019-05-03 10:44:48 -07:00
build.config.cuttlefish.x86_64
ANDROID: Move from clang r346389b to r349610.
2019-05-03 10:44:48 -07:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
9p: remove Ron Minnich from MAINTAINERS
2018-08-17 16:20:26 -07:00
Kbuild
Merge tag 'kbuild-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2017-11-17 17:45:29 -08:00
Kconfig
kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt
2018-08-02 08:06:55 +09:00
MAINTAINERS
MAINTAINERS: Add an entry for the code of conduct
2018-10-22 07:33:36 +01:00
Makefile
ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple
2019-05-03 10:39:56 -07:00
README
Docs: Added a pointer to the formatted docs to README
2018-03-21 09:02:53 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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