Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Wanpeng Li f9bcf1e0e0 sched/cputime: Fix steal time accounting ... Commit: 5743021831 ("sched/cputime: Count actually elapsed irq & softirq time") ... didn't take steal time into consideration with passing the noirqtime kernel parameter. As Paolo pointed out before: | Why not? If idle=poll, for example, any time the guest is suspended (and | thus cannot poll) does count as stolen time. This patch fixes it by reducing steal time from idle time accounting when the noirqtime parameter is true. The average idle time drops from 56.8% to 54.75% for nohz idle kvm guest(noirqtime, idle=poll, four vCPUs running on one pCPU). Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Radim <rkrcmar@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1470893795-3527-1-git-send-email-wanpeng.li@hotmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2016-08-11 11:02:14 +02:00
..
bpf	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2016-07-27 12:03:20 -07:00
configs	config: add android config fragments	2016-08-02 19:35:42 -04:00
debug	mm/init: Add 'rodata=off' boot cmdline parameter to disable read-only kernel mappings	2016-02-22 08:51:37 +01:00
events	perf/core: Change log level for duration warning to KERN_INFO	2016-08-02 10:23:57 +02:00
gcov	gcov: add support for gcc version >= 6	2016-07-15 14:54:27 +09:00
irq	genirq: Fix missing irq allocation affinity hint	2016-07-19 10:49:47 +02:00
livepatch	modules: add ro_after_init support	2016-08-04 10:16:55 +09:30
locking	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-07-25 12:41:29 -07:00
power	mm, vmscan: move LRU lists to node	2016-07-28 16:07:41 -07:00
printk	Revert "printk: create pr_<level> functions"	2016-08-09 10:48:18 -07:00
rcu	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-07-29 13:55:30 -07:00
sched	sched/cputime: Fix steal time accounting	2016-08-11 11:02:14 +02:00
time	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-07-29 13:55:30 -07:00
trace	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
.gitignore
acct.c
async.c
audit.c	Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit	2016-07-29 17:54:17 -07:00
audit.h	Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit	2016-07-29 17:54:17 -07:00
audit_fsnotify.c
audit_tree.c	audit: cleanup prune_tree_thread	2016-04-04 09:46:47 -04:00
audit_watch.c	don't bother with ->d_inode->i_sb - it's always equal to ->d_sb	2016-04-10 17:11:51 -04:00
auditfilter.c	audit: add fields to exclude filter by reusing user filter	2016-06-27 11:01:00 -04:00
auditsc.c	Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/audit	2016-07-29 17:54:17 -07:00
backtracetest.c
bounds.c
capability.c	kernel: Add noaudit variant of ns_capable()	2016-06-06 20:16:18 +10:00
cgroup.c	Merge branch 'for-4.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2016-07-29 14:29:04 -07:00
cgroup_freezer.c
cgroup_pids.c	cgroup: Use lld instead of ld when printing pids controller events_limit	2016-06-21 15:03:36 -04:00
compat.c
configs.c
context_tracking.c
cpu.c	timers/core: Correct callback order during CPU hot plug	2016-07-28 18:56:22 +02:00
cpu_pm.c
cpuset.c	cpuset, mm: fix TIF_MEMDIE check in cpuset_change_task_nodemask	2016-07-28 16:07:41 -07:00
crash_dump.c
cred.c	cred: Reject inodes with invalid ids in set_create_file_as()	2016-06-30 18:05:09 -05:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c	kernel/exit.c: quieten greatest stack depth printk	2016-08-02 19:35:23 -04:00
extable.c
fork.c	mm: fix memcg stack accounting for sub-page stacks	2016-07-28 16:07:41 -07:00
freezer.c	freezer, oom: check TIF_MEMDIE on the correct task	2016-07-28 16:07:41 -07:00
futex.c	futex: Calculate the futex key based on a tail page for file-based futexes	2016-06-08 19:23:54 +02:00
futex_compat.c
groups.c
hung_task.c	kernel/hung_task.c: use timeout diff when timeout is updated	2016-03-22 15:36:02 -07:00
irq_work.c
jump_label.c	powerpc updates for 4.8 #2	2016-08-05 09:00:54 -04:00
kallsyms.c	kallsyms: add support for relative offsets in kallsyms address table	2016-03-15 16:55:16 -07:00
kcmp.c
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kcov.c	kernel/kcov: unproxify debugfs file's fops	2016-06-15 04:56:35 -07:00
kexec.c	kexec: allow architectures to override boot mapping	2016-08-02 19:35:27 -04:00
kexec_core.c	kexec: add restriction on kexec_load() segment sizes	2016-08-02 19:35:31 -04:00
kexec_file.c	kexec: introduce a protection mechanism for the crashkernel reserved memory	2016-05-23 17:04:14 -07:00
kexec_internal.h
kmod.c
kprobes.c
ksysfs.c	kexec: add a kexec_crash_loaded() function	2016-08-02 19:35:30 -04:00
kthread.c
latencytop.c
Makefile	ELF/MIPS build fix	2016-05-23 17:04:14 -07:00
membarrier.c
memremap.c	libnvdimm for 4.8	2016-07-28 17:38:16 -07:00
module-internal.h
module.c	Removed the MODULE_SIG_FORCE-means-no-MODULE_FORCE_LOAD patch.	2016-08-04 09:14:38 -04:00
module_signing.c	KEYS: Move the point of trust determination to __key_link()	2016-04-11 22:43:43 +01:00
notifier.c
nsproxy.c	cgroup: introduce cgroup namespaces	2016-02-16 13:04:58 -05:00
padata.c	kernel/padata.c: hide unused functions	2016-05-19 19:12:14 -07:00
panic.c	kexec: use core_param for crash_kexec_post_notifiers boot option	2016-08-02 19:35:29 -04:00
params.c
pid.c	remove lots of IS_ERR_VALUE abuses	2016-05-27 15:26:11 -07:00
pid_namespace.c
profile.c	profile: Convert to hotplug state machine	2016-07-15 10:41:42 +02:00
ptrace.c	tree-wide: replace config_enabled() with IS_ENABLED()	2016-08-04 08:50:07 -04:00
range.c
reboot.c
relay.c	relay: add global mode support for buffer-only channels	2016-08-02 19:35:41 -04:00
resource.c	/proc/iomem: only expose physical resource addresses to privileged users	2016-04-14 12:56:09 -07:00
seccomp.c	tree-wide: replace config_enabled() with IS_ENABLED()	2016-08-04 08:50:07 -04:00
signal.c	signals: Use hrtimer for sigtimedwait()	2016-07-07 10:35:07 +02:00
smp.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-07-29 13:55:30 -07:00
smpboot.c	cpu/hotplug: Unpark smpboot threads from the state machine	2016-03-01 20:36:56 +01:00
smpboot.h	cpu/hotplug: Create hotplug threads	2016-03-01 20:36:56 +01:00
softirq.c	arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections	2016-03-25 16:37:42 -07:00
stacktrace.c
stop_machine.c	stop_machine: Touch_nmi_watchdog() after MULTI_STOP_PREPARE	2016-07-27 11:12:11 +02:00
sys.c	prctl: make PR_SET_THP_DISABLE wait for mmap_sem killable	2016-05-23 17:04:14 -07:00
sys_ni.c
sysctl.c	printk: add kernel parameter to control writes to /dev/kmsg	2016-08-02 19:35:06 -04:00
sysctl_binary.c	kernel/sysctl_binary.c: use generic UUID library	2016-05-20 17:58:30 -07:00
task_work.c	task_work: use READ_ONCE/lockless_dereference, avoid pi_lock if !task_works	2016-08-02 19:35:02 -04:00
taskstats.c	taskstats: use the libnl API to align nlattr on 64-bit	2016-04-23 20:13:25 -04:00
test_kprobes.c
torture.c	torture: Stop onoff task if there is only one cpu	2016-06-14 16:03:28 -07:00
tracepoint.c	kernel/...: convert pr_warning to pr_warn	2016-03-22 15:36:02 -07:00
tsacct.c	time, acct: Drop irq save & restore from __acct_update_integrals()	2016-02-29 09:53:09 +01:00
uid16.c
up.c
user-return-notifier.c
user.c
user_namespace.c	fs: Limit file caps to the user namespace of the super block	2016-06-24 10:40:31 -05:00
utsname.c
utsname_sysctl.c
watchdog.c	Revert "perf/x86/intel, watchdog: Switch NMI watchdog to ref cycles on x86"	2016-07-10 20:58:36 +02:00
workqueue.c	Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-07-29 13:55:30 -07:00
workqueue_internal.h	sched/core: Get rid of 'cpu' argument in wq_worker_sleeping()	2016-03-02 10:28:47 -05:00