RE: [Xen-devel] Re: credits account issue

["Lv, Hui" <hui.lv@xxxxxxxxx>]

Yes, in current scheduler, XEN4.0+, there is “burn_credits” each time when the vcpu is de-scheduled.

It’s accurate than the previous version.  

 

From: David Xu [mailto:davidxu06@xxxxxxxxx]
Sent: Friday, July 22, 2011 9:58 AM
To: Lv, Hui
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] Re: credits account issue

 

Hi,

Thanks for your reply. Has this solution been added to new credit scheduler? I am using Xen-3.4.2. And in this version, when the vcpu is de-scheduled, it seems the current vcpu is just inserted into runqueue and its credit is not deducted.

    if ( vcpu_runnable(current) )
        __runq_insert(cpu, scurr);
    else
        BUG_ON( is_idle_vcpu(current) || list_empty(runq) );

    snext = __runq_elem(runq->next);

Regards,
Cong

2011/7/21 ygsnian <hui.lv@intel.com>

when the vcpu is de-scheduled, it's credits will be deducted.

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