• Yuyang Du's avatar
    sched/fair: Provide runnable_load_avg back to cfs_rq · 13962234
    Yuyang Du authored
    The cfs_rq's load_avg is composed of runnable_load_avg and blocked_load_avg.
    Before this series, sometimes the runnable_load_avg is used, and sometimes
    the load_avg is used. Completely replacing all uses of runnable_load_avg
    with load_avg may be too big a leap, i.e., the blocked_load_avg is concerned
    to result in overrated load. Therefore, we get runnable_load_avg back.
    
    The new cfs_rq's runnable_load_avg is improved to be updated with all of the
    runnable sched_eneities at the same time, so the one sched_entity updated and
    the others stale problem is solved.
    Signed-off-by: default avatarYuyang Du <yuyang.du@intel.com>
    Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: arjan@linux.intel.com
    Cc: bsegall@google.com
    Cc: dietmar.eggemann@arm.com
    Cc: fengguang.wu@intel.com
    Cc: len.brown@intel.com
    Cc: morten.rasmussen@arm.com
    Cc: pjt@google.com
    Cc: rafael.j.wysocki@intel.com
    Cc: umgwanakikbuti@gmail.com
    Cc: vincent.guittot@linaro.org
    Link: http://lkml.kernel.org/r/1436918682-4971-7-git-send-email-yuyang.du@intel.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
    13962234
debug.c 15.2 KB