linux-kernel - Re: [PATCH 4/6] writeback: add wb_monitor.py script to monitor writeback info on bdi

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Message-ID: <c9b3f011-a54e-9a21-4ede-b7d0f596047b@huaweicloud.com>
Date: Thu, 21 Mar 2024 14:22:59 +0800
From: Kemeng Shi <shikemeng@...weicloud.com>
To: Tejun Heo <tj@...nel.org>
Cc: akpm@...ux-foundation.org, linux-mm@...ck.org,
 linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
 willy@...radead.org, bfoster@...hat.com, jack@...e.cz, dsterba@...e.com,
 mjguzik@...il.com, dhowells@...hat.com, peterz@...radead.org
Subject: Re: [PATCH 4/6] writeback: add wb_monitor.py script to monitor
 writeback info on bdi



on 3/20/2024 11:12 PM, Tejun Heo wrote:
> On Wed, Mar 20, 2024 at 07:02:20PM +0800, Kemeng Shi wrote:
>> Add wb_monitor.py script to monitor writeback information on backing dev
>> which makes it easier and more convenient to observe writeback behaviors
>> of running system.
>>
>> This script is based on copy of wq_monitor.py.
> 
> I don't think I did that when wq_monitor.py was added but would you mind
> adding an example output so that people can have a better idea on what to
> expect?
Sorry for the confusion. What I mean is that wb_monitor.py is initially copy
from wq_monitor.py and then is modified to monitor writeback info. I will
correct the description and add the example outputs.

Thanks

> 
> Thanks.
>