Re: [PATCHSET for-5.10/block] iocost: improve debt forgiveness logic

Jens Axboe
2020-09-25T14:35:34Z

On 9/17/20 6:44 PM, Tejun Heo wrote:
> Hello,
>
> Debt reduction logic was recently added by dda1315f1853 ("blk-iocost: halve
> debts if device stays idle"). While it was effective at avoiding
> pathological cases where some iocgs were kept delayed while the device was
> most idle, it wasn't very effective at addressing more complex conditions
> and could leave low priority cgroups unnecessarily harshly throttled under
> moderate load.

Applied, thanks.

--
Jens Axboe