netdev - Re: [RFC net-next 4/4] tcp: defer regular ACK while processing socket backlog

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Message-ID: <20230906160729.3cf829c0@hermes.local>
Date: Wed, 6 Sep 2023 16:07:29 -0700
From: Stephen Hemminger <stephen@...workplumber.org>
To: Yuchung Cheng <ycheng@...gle.com>
Cc: Eric Dumazet <edumazet@...gle.com>, "David S . Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>, netdev@...r.kernel.org, eric.dumazet@...il.com, Soheil
 Hassas Yeganeh <soheil@...gle.com>, Neal Cardwell <ncardwell@...gle.com>
Subject: Re: [RFC net-next 4/4] tcp: defer regular ACK while processing
 socket backlog

On Wed, 6 Sep 2023 13:31:17 -0700
Yuchung Cheng <ycheng@...gle.com> wrote:

> >
> > Signed-off-by: Eric Dumazet <edumazet@...gle.com>  
> Signed-off-by: Yuchung Cheng <ycheng@...gle.com>
> 
> Looks great. Any reason any workload may want to switch this feature
> off? I can't think of one...

Never underestimate the likelihood that some TCP stack or middlebox
is broken and needs more ACK's to work.