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SubjectRe: [PATCH] scheduler: domain: init next_balance in nohz_idle_balancer with jiffies
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On Mon, 2012-01-30 at 14:44 +0200, Peter De Schrijver wrote:
> From: Diwakar Tundlam <dtundlam@nvidia.com>
>
> The next_balance parameter of nohz_idle_balancer should be initialized
> to jiffies since jiffies itself is initialized to 300 seconds shy of
> overflow. Otherwise, nohz_idle_balancer does not run for the first 5
> mins after bootup.
>
> Signed-off-by: Diwakar Tundlam <dtundlam@nvidia.com>
> Reviewed-by: Aleksandr Frid <afrid@nvidia.com>
> Reviewed-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
> Reviewed-by: Satya Popuri <spopuri@nvidia.com>
> ---
> kernel/sched.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)

You'll find that this file no longer exists...

> diff --git a/kernel/sched.c b/kernel/sched.c
> index b5efd6c..d3f291f 100644
> --- a/kernel/sched.c
> +++ b/kernel/sched.c
> @@ -8383,6 +8383,7 @@ void __init sched_init(void)
> atomic_set(&nohz.load_balancer, nr_cpu_ids);
> atomic_set(&nohz.first_pick_cpu, nr_cpu_ids);
> atomic_set(&nohz.second_pick_cpu, nr_cpu_ids);
> + nohz.next_balance = jiffies;
> #endif
> /* May be allocated at isolcpus cmdline parse time */
> if (cpu_isolated_map == NULL)

Not does this code section..


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