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| author | Morten Rasmussen <Morten.Rasmussen@arm.com> | 2012-09-14 14:38:10 +0100 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2012-10-08 08:56:52 +0530 |
| commit | 99232a0b5cbec2a874d4ff732f66586322eca8e6 (patch) | |
| tree | fb7bf423bb1583b7acaa1487267cb259494dee93 /kernel/stop_machine.c | |
| parent | d45b49ce55b334324988fb5e9a32bc464cbd3c94 (diff) | |
sched: Forced task migration on heterogeneous systems
This patch introduces forced task migration for moving suitable
currently running tasks between hmp_domains. Task behaviour is likely
to change over time. Tasks running in a less capable hmp_domain may
change to become more demanding and should therefore be migrated up.
They are unlikely go through the select_task_rq_fair() path anytime
soon and therefore need special attention.
This patch introduces a period check (SCHED_TICK) of the currently
running task on all runqueues and sets up a forced migration using
stop_machine_no_wait() if the task needs to be migrated.
Ideally, this should not be implemented by polling all runqueues.
Signed-off-by: Morten Rasmussen <Morten.Rasmussen@arm.com>
Diffstat (limited to 'kernel/stop_machine.c')
0 files changed, 0 insertions, 0 deletions