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SubjectRe: [PATCH] CFQ: Don't store left slice when slice used up or for a idle workload
Jeff Moyer wrote:
> Gui Jianfeng <guijianfeng@cn.fujitsu.com> writes:
>
>> It doesn't make sence to store left time slice for an idle workload
>> or for the cfqq that uses up its slice.
>
> Did you actually observe any problems? As I understand it, if you
> overrun your slice you get a negative offset, so I think we want to keep
> that.

Hi Jeff

If that's the case, do we also need to store the negative offset when slice
used up in cfq_select_queue() and cfq_idle_slice_timer()?

Thanks
Gui

>
> Cheers,
> Jeff
>
>


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