Re: [PATCH V4 00/15] blk-throttle: add .high limit

[Shaohua Li]

On Tue, Nov 15, 2016 at 11:53:39AM -0800, Bart Van Assche wrote:
> On 11/14/2016 05:28 PM, Shaohua Li wrote:
> > On Mon, Nov 14, 2016 at 05:18:28PM -0800, Bart Van Assche wrote:
> > > Unless someone can convince me of the opposite I think that coming up with
> > > an algorithm for estimating I/O cost is essential to guarantee I/O fairness
> > > without requesting users to perform complicated parameter configurations.
> > 
> > That's what I tried before:
> > http://marc.info/?l=linux-kernel&m=145617863208940&w=2
> 
> That URL refers to v2 of this patch series. Sorry but I have not found the
> I/O cost estimation algorithm I was referring to in v2 of this patch series.

It's a v2, but not the v2 of this series. There is no algorithm to estimate I/O
cost, that one just uses IOPS or bandwidth to determine I/O cost.

Thanks,
Shaohua