linux-kernel - Re: [PATCH 3/3] iocost_monitor: improve it by adding iocg wait

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Date:   Mon, 7 Aug 2023 08:34:11 -1000
From:   Tejun Heo <tj@...nel.org>
To:     chengming.zhou@...ux.dev
Cc:     axboe@...nel.dk, linux-kernel@...r.kernel.org,
        zhouchengming@...edance.com
Subject: Re: [PATCH 3/3] iocost_monitor: improve it by adding iocg wait_ms

On Fri, Aug 04, 2023 at 02:50:39PM +0800, chengming.zhou@...ux.dev wrote:
> From: Chengming Zhou <zhouchengming@...edance.com>
> 
> The iocg can have three throttled metrics: wait, debt, delay. This patch
> add missing wait_ms to IocgStat to show the latest wait_ms of iocg.
> 
> As we are here, group iocg usage percents "inflt%" and "usage%" together,
> and group iocg throttled metrics "wait", "debt" and "delay" together.
> 
> Effect after changes:
> 
> nvme0n1 RUN  per=50.0ms cur_per=177105.713:v1053528.587 busy= +0 vrate=135.00%:270.00% params=ssd_dfl(CQ)
>                           active    weight      hweight% inflt% usage%    wait    debt   delay
> InterfererGroup0             *   100/  100  54.28/  9.09   0.34  24.07    0.00    0.00    0.00
> interfered                   *    84/ 1000  45.72/ 90.91   0.48  41.09    0.00    0.00    0.00
> 
> Signed-off-by: Chengming Zhou <zhouchengming@...edance.com>

For 1-3:

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun