netdev - Re: [patch net-next] virtio_net: add support for Byte Queue Limits

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Date: Thu, 9 May 2024 10:28:12 -0400
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Jiri Pirko <jiri@...nulli.us>
Cc: netdev@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, jasowang@...hat.com,
	xuanzhuo@...ux.alibaba.com, virtualization@...ts.linux.dev,
	ast@...nel.org, daniel@...earbox.net, hawk@...nel.org,
	john.fastabend@...il.com
Subject: Re: [patch net-next] virtio_net: add support for Byte Queue Limits

On Thu, May 09, 2024 at 03:31:56PM +0200, Jiri Pirko wrote:
> Thu, May 09, 2024 at 02:41:39PM CEST, mst@...hat.com wrote:
> >On Thu, May 09, 2024 at 01:46:15PM +0200, Jiri Pirko wrote:
> >> From: Jiri Pirko <jiri@...dia.com>
> >> 
> >> Add support for Byte Queue Limits (BQL).
> >> 
> >> Signed-off-by: Jiri Pirko <jiri@...dia.com>
> >
> >Can we get more detail on the benefits you observe etc?
> >Thanks!
> 
> More info about the BQL in general is here:
> https://lwn.net/Articles/469652/

I know about BQL in general. We discussed BQL for virtio in the past
mostly I got the feedback from net core maintainers that it likely won't
benefit virtio.

So I'm asking, what kind of benefit do you observe?

-- 
MST