If sysctl_sched_prefer_spread is enabled, then tasks would be freely
migrated to idle cpus within same cluster to reduce runnables.
By default, the feature is disabled.
User can trigger feature with:
echo 1 > /proc/sys/kernel/sched_prefer_spread
Aggressively spread tasks with in little cluster.
echo 2 > /proc/sys/kernel/sched_prefer_spread
Aggressively spread tasks with in little cluster as well as
big cluster, but not between big and little.
Change-Id: I0a4d87bd17de3525548765472e6f388a9970f13c
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
[satyap@codeaurora.org: fix trivial merge conflicts]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
When there is only 2 tasks in 1 cpu and the other
task is currently running, allow load bigger task
to be balanced if the other task is currently
running.
Change-Id: I489e9624ba010f9293272a67585e8209a786b787
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
Signed-off-by: Cong Zhang <congzhan@codeaurora.org>
This change is for general scheduler improvements.
Change-Id: I780f52ebc3cb69ee2c497d2d2f8e8fddd789421d
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
We are kicking no-hz idle balance when the CPU has two tasks.
It should be done only when the CPU is overutilized on
energy aware systems. This approach seems to be causing more
number of wakeups on HZ=250 systems compared to HZ=100.
Revisit the no-hz idle scheme and only send the IPI if and
when it is necessary.
Change-Id: I82e58a2aa3b6508c86d05c93c9fb7fe6dfbde500
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
[satyap@codeaurora.org: fix trivial merge conflicts]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
Add one vendor specific sysfs group to support additional sysfs nodes,
such as err_state and power_mode.
Change-Id: Ia69909fc3838a054221191259a015067dd962008
Signed-off-by: Can Guo <cang@codeaurora.org>
Since most of the CPUs aren't prone to meltdown,
force off the kpti feature. Enable on required
targets.
Change-Id: If78c70bcaeac2b157a901e5036190aaf9e5aabf6
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>
To reduce computation overhead in searching and matching un-used
or used CVP iommu mappings.
Change-Id: I57f2849c1fcd81d534bb55f24b51b66d3b321cb4
Signed-off-by: George Shen <sqiao@codeaurora.org>
KGSL must enable the apb clock before accessing QDSS register space.
Change-Id: I4fb20741c54ef665bf2652c13c4c87fd9b0b3329
Signed-off-by: Mohammed Mirza Mandayappurath Manzoor <mmandaya@codeaurora.org>
This is a snapshot of the vibrator LDO driver as of msm-4.19
'commit c527cd5c987ac (Merge "mhi: cntrl: qcom: allow printing
large strings to IPC logs")' with the following modifications:
- Replace snprintf with scnprintf.
Change-Id: Id58fbcc33607c309366104fe72282c09c86a3227
Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
