[Xen-devel] question about sedf

[tgh <tianguanhua@xxxxxxxxxx>]

hi
I try to understand to the code of scheduler/scheduler-sedf
I am confused about how does scheduler-sedf work 
I  donot know how does the scheduler-sedf related struct be organized 
and their functions
such as the mean and function of the idle in struct of schedule_data

and what about  the runnableq/waitq in struct of sedf_cpu_info

could you tell me about how does scheduler-sedf related struct be 
organized to work in general
I look the code but confused


could you help me
Thanks in advance


struct schedule_data {
   spinlock_t          schedule_lock;  /* spinlock protecting 
curr        */
   struct vcpu        *curr;           /* current 
task                    */
   struct vcpu        *idle;           /* idle task for this 
cpu          */
   void               *sched_priv;
   struct timer        s_timer;        /* scheduling 
timer                */
   unsigned long       tick;           /* current periodic 
'tick'         */
} __cacheline_aligned;

struct sedf_cpu_info {
   struct list_head runnableq;
   struct list_head waitq;
   struct list_head extraq[2];
   s_time_t         current_slice_expires;
};


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