On Mon, 2014-06-16 at 12:48 -0700, Tim Chen wrote: > Thanks to the review from Jason and Peter. I've moved the check > of whether load balance is required into fair.c's idle_balance. > > When a system is lightly loaded (i.e. no more than 1 job per cpu), > attempt to pull job to a cpu before putting it to idle is unnecessary and > can be skipped. This patch adds an indicator so the scheduler can know > when there's no more than 1 active job is on any CPU in the system to > skip needless job pulls.
> Signed-off-by: Tim Chen <tim.c.c...@linux.intel.com> Acked-by: Jason Low <jason.l...@hp.com> This change would address one of the main issues I've also been seeing on my test machines with idle_balance where most of the find_busiest_group overhead is not useful due to that issue with no tasks to move. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
