linux-kernel - Re: [PATCH] virtio_blk: set the default scheduler to none

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231226040342-mutt-send-email-mst@kernel.org>
Date: Tue, 26 Dec 2023 04:05:04 -0500
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Li Feng <fengli@...rtx.com>
Cc: Jens Axboe <axboe@...nel.dk>, Jason Wang <jasowang@...hat.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Stefan Hajnoczi <stefanha@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	"open list:BLOCK LAYER" <linux-block@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"open list:VIRTIO BLOCK AND SCSI DRIVERS" <virtualization@...ts.linux.dev>
Subject: Re: [PATCH] virtio_blk: set the default scheduler to none

On Tue, Dec 26, 2023 at 05:01:40PM +0800, Li Feng wrote:
> Hi MST and paolo,
> 
> mq-deadline is good for slow media, and none is good for high-speed media. 
> It depends on how the community views this issue. When virtio-blk adopts
> multi-queue,it automatically changes from deadline to none, which is not
> uniform here.

It's not virtio-blk changing though, it's linux doing that, right?
Is virtio-blk special somehow?

> I don't have ideas right now to answer Christoph/Paolo's question.
> 
> Thanks,
> Li

-- 
MST