From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH net-next] udp: avoid one cache line miss in recvmsg()
Date: Mon, 21 Nov 2016 11:27:12 -0500 (EST) [thread overview]
Message-ID: <20161121.112712.1751786462749387402.davem@davemloft.net> (raw)
In-Reply-To: <1479518283.8455.312.camel@edumazet-glaptop3.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 18 Nov 2016 17:18:03 -0800
> From: Eric Dumazet <edumazet@google.com>
>
> UDP_SKB_CB(skb)->partial_cov is located at offset 66 in skb,
> requesting a cold cache line being read in cpu cache.
>
> We can avoid this cache line miss for UDP sockets,
> as partial_cov has a meaning only for UDPLite.
>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
Applied.
next prev parent reply other threads:[~2016-11-21 16:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-19 1:18 [PATCH net-next] udp: avoid one cache line miss in recvmsg() Eric Dumazet
2016-11-21 16:27 ` David Miller [this message]
2016-11-21 21:36 ` Paolo Abeni
2016-11-21 22:01 ` Eric Dumazet
2016-11-21 22:05 ` Eric Dumazet
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