On Thu, 13 Dec 2012 16:45:44 +0800, Alex Shi wrote:
> On 12/12/2012 11:57 AM, Preeti U Murthy wrote:
>> Hi Alex,
>> On 12/10/2012 01:52 PM, Alex Shi wrote:
>>> They are the base values in load balance, update them with rq runnable
>>> load average, then the load balance will consider runnable load avg
>>> naturally.
>>>
>
> updated with UP config fix:
>
>
> ==========
>> From d271c93b40411660dd0e54d99946367c87002cc8 Mon Sep 17 00:00:00 2001
> From: Alex Shi <alex....@intel.com>
> Date: Sat, 17 Nov 2012 13:56:11 +0800
> Subject: [PATCH 07/18] sched: compute runnable load avg in cpu_load and
> cpu_avg_load_per_task
>
> They are the base values in load balance, update them with rq runnable
> load average, then the load balance will consider runnable load avg
> naturally.
>
> Signed-off-by: Alex Shi <alex....@intel.com>
> ---
> kernel/sched/core.c | 8 ++++++--
> kernel/sched/fair.c | 4 ++--
> 2 files changed, 8 insertions(+), 4 deletions(-)
>
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index 96fa5f1..d306a84 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -2487,7 +2487,7 @@ static void __update_cpu_load(struct rq *this_rq,
> unsigned long this_load,
> void update_idle_cpu_load(struct rq *this_rq)
> {
> unsigned long curr_jiffies = ACCESS_ONCE(jiffies);
> - unsigned long load = this_rq->load.weight;
> + unsigned long load = (unsigned long)this_rq->cfs.runnable_load_avg;
So shouldn't this line be guarded with CONFIG_SMP too?
Thanks,
Namhyung
> unsigned long pending_updates;
>
> /*
> @@ -2537,8 +2537,12 @@ static void update_cpu_load_active(struct rq *this_rq)
> * See the mess around update_idle_cpu_load() / update_cpu_load_nohz().
> */
> this_rq->last_load_update_tick = jiffies;
> - __update_cpu_load(this_rq, this_rq->load.weight, 1);
>
> +#ifdef CONFIG_SMP
> + __update_cpu_load(this_rq, this_rq->cfs.runnable_load_avg, 1);
> +#else
> + __update_cpu_load(this_rq, this_rq->load.weight, 1);
> +#endif
> calc_load_account_active(this_rq);
> }
--
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