netdev - Re: [PATCH net-next v2] tcp: minor optimization in tcp ack fast path processing

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Date:   Sun, 11 Nov 2018 06:34:09 -0800
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Yafang Shao <laoar.shao@...il.com>, davem@...emloft.net,
        edumazet@...gle.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Joe Perches <joe@...ches.com>
Subject: Re: [PATCH net-next v2] tcp: minor optimization in tcp ack fast path
 processing



On 11/11/2018 04:10 AM, Yafang Shao wrote:
> Bitwise operation is a little faster.
> So I replace after() with using the flag FLAG_SND_UNA_ADVANCED as it is
> already set before.
> 
> In addtion, there's another similar improvement in tcp_cwnd_reduction().
> 
> Cc: Joe Perches <joe@...ches.com>
> Suggested-by: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Yafang Shao <laoar.shao@...il.com>

Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Thanks.