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linux/tools/testing/selftests
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Kirill A. Shutemov 71a2c112a0 khugepaged: introduce 'max_ptes_shared' tunable 
'max_ptes_shared' specifies how many pages can be shared across multiple
processes.  Exceeding the number would block the collapse::

	/sys/kernel/mm/transparent_hugepage/khugepaged/max_ptes_shared

A higher value may increase memory footprint for some workloads.

By default, at least half of pages has to be not shared.

[colin.king@canonical.com: fix several spelling mistakes]
  Link: http://lkml.kernel.org/r/20200420084241.65433-1-colin.king@canonical.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Tested-by: Zi Yan <ziy@nvidia.com>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Link: http://lkml.kernel.org/r/20200416160026.16538-9-kirill.shutemov@linux.intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-03 20:09:46 -07:00
..
android
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
arm64
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
bpf
bpf, selftests: Add a verifier test for assigning 32bit reg states to 64bit ones
2020-05-29 13:34:06 -07:00
breakpoints
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
capabilities
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
cgroup
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
clone3
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
cpu-hotplug
…
cpufreq
…
dmabuf-heaps
kselftests: dmabuf-heaps: Fix confused return value on expected error testing
2020-05-08 09:40:58 -06:00
drivers
selftests: mlxsw: qos_mc_aware: Specify arping timeout as an integer
2020-05-22 16:08:14 -07:00
efivarfs
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
exec
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
filesystems
kselftests: introduce new epoll60 testcase for catching lost wakeups
2020-05-07 19:27:21 -07:00
firmware
selftests: firmware: Add firmware_request_platform tests
2020-03-20 14:54:04 +01:00
ftrace
Merge tag 'linux-kselftest-5.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-05-15 12:57:50 -07:00
futex
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
gpio
selftests: add build/cross-build dependency check script
2020-04-23 17:23:20 -06:00
ia64
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
intel_pstate
selftests: add build/cross-build dependency check script
2020-04-23 17:23:20 -06:00
ipc
selftests/ipc: Fix test failure seen after initial test run
2020-04-14 10:24:28 -06:00
ir
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
kcmp
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
kexec
sefltest/ima: support appended signatures (modsig)
2019-08-29 12:45:30 -04:00
kmod
selftests: kmod: test disabling module autoloading
2020-04-10 15:36:22 -07:00
kselftest
kselftest/runner: allow to properly deliver signals to tests
2020-04-14 09:49:13 -06:00
kvm
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2020-05-16 13:39:22 -07:00
lib
selftests: Move kselftest_module.sh into kselftest/
2019-11-07 14:46:08 -07:00
livepatch
selftests: Install settings files to fix TIMEOUT failures
2020-02-20 08:56:42 -07:00
lkdtm
selftests/lkdtm: Use grep -E instead of egrep
2020-05-08 09:46:17 -06:00
locking
…
media_tests
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
membarrier
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
memfd
selftests: add build/cross-build dependency check script
2020-04-23 17:23:20 -06:00
memory-hotplug
…
mount
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
mqueue
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
net
selftests: mptcp: pm: rm the right tmp file
2020-05-15 10:33:56 -07:00
netfilter
selftests: netfilter: add nfqueue test case
2020-03-24 20:00:12 +01:00
nsfs
tools/testing: Replace zero-length array with flexible-array
2020-05-08 09:42:14 -06:00
ntb
…
openat2
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
pid_namespace
selftests: add pid namespace ENOMEM regression test
2020-03-25 13:50:34 +01:00
pidfd
Merge tag 'threads-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-04-04 10:08:18 -07:00
powerpc
Merge tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
2020-04-09 11:01:42 -07:00
prctl
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
proc
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
pstore
pstore/platform: Use backend name for console registration
2020-05-30 10:34:02 -07:00
ptp
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
ptrace
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
rcutorture
Merge branches 'fixes.2020.04.27a', 'kfree_rcu.2020.04.27a', 'rcu-tasks.2020.04.27a', 'stall.2020.04.27a' and 'torture.2020.05.07a' into HEAD
2020-05-07 10:18:32 -07:00
resctrl
selftests/resctrl: fix spelling mistake "Errror" -> "Error"
2020-03-13 13:29:22 -06:00
rseq
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
rtc
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
safesetid
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
seccomp
selftests/seccomp: allow clock_nanosleep instead of nanosleep
2020-04-14 09:49:51 -06:00
sigaltstack
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
size
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
sparc64
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
splice
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
static_keys
…
sync
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
sysctl
…
tc-testing
net/sched: fix infinite loop in sch_fq_pie
2020-05-27 11:11:18 -07:00
timens
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
timers
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
tmpfs
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
tpm2
Revert "Kernel selftests: tpm2: check for tpm support"
2020-04-14 10:08:24 -06:00
uevent
…
user
…
vDSO
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
vm
khugepaged: introduce 'max_ptes_shared' tunable
2020-06-03 20:09:46 -07:00
watchdog
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
wireguard
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2020-06-01 15:18:27 -07:00
x86
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
zram
…
.gitignore
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx
2020-04-03 13:12:26 -07:00
gen_kselftest_tar.sh
selftests: gen_kselftest_tar.sh: Do not clobber kselftest/
2019-11-07 14:43:27 -07:00
kselftest_deps.sh
selftests: add build/cross-build dependency check script
2020-04-23 17:23:20 -06:00
kselftest_harness.h
selftests/harness: fix spelling mistake "SIGARLM" -> "SIGALRM"
2020-04-14 09:44:04 -06:00
kselftest_install.sh
selftests: gen_kselftest_tar.sh: Do not clobber kselftest/
2019-11-07 14:43:27 -07:00
kselftest_module.h
…
kselftest.h
…
lib.mk
Merge tag 'linux-kselftest-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
2020-04-01 16:09:12 -07:00
Makefile
Merge tag 'threads-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-04-04 10:08:18 -07:00