iirc,
active array contains tasks that have some timeslice left.
expired array contains tasks that have exhausted their timeslice.
hth
anupam
On Sun, 27 Jun 2004 07:29:42 +0000, manish regmi
<manish_regmi@hotmail.com> wrote:
>
> Hi,
> Linux 2.6 uses two priority arrays in runqueue. One for active and other for
> expired task.
>
> struct runqueue {
> spinlock_t lock;
> unsigned long nr_running, nr_switches, expired_timestamp,
> nr_uninterruptible, timestamp_last_tick;
> task_t *curr, *idle;
> struct mm_struct *prev_mm;
> prio_array_t *active, *expired, arrays[2];
> int best_expired_prio, prev_cpu_load[NR_CPUS];
> #ifdef CONFIG_NUMA
> atomic_t *node_nr_running;
> int prev_node_load[MAX_NUMNODES];
> #endif
> task_t *migration_thread;
> struct list_head migration_queue;
>
> atomic_t nr_iowait;
> };
>
> So, What are active and expired task.
>
> thanks.
>
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