linux-kernel - Re: [PATCH -next 4/5] blk-iocost: bypass if only one cgroup issues io

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Message-ID: <Y0Z09aVsg9TUGSRH@slm.duckdns.org>
Date:   Tue, 11 Oct 2022 22:04:05 -1000
From:   Tejun Heo <tj@...nel.org>
To:     Yu Kuai <yukuai1@...weicloud.com>
Cc:     axboe@...nel.dk, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, yi.zhang@...wei.com,
        "yukuai (C)" <yukuai3@...wei.com>
Subject: Re: [PATCH -next 4/5] blk-iocost: bypass if only one cgroup issues io

On Wed, Oct 12, 2022 at 09:33:46AM +0800, Yu Kuai wrote:
> Perhaps a suitable configuration can avoid this problem.

Yeah, iocost is a throttling controller. The default parameters try to be
adaptive but it really needs benchmarked parameters to work properly.

Thanks.

-- 
tejun