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Message-Id: <20161121.112712.1751786462749387402.davem@davemloft.net> Date: Mon, 21 Nov 2016 11:27:12 -0500 (EST) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: netdev@...r.kernel.org Subject: Re: [PATCH net-next] udp: avoid one cache line miss in recvmsg() From: Eric Dumazet <eric.dumazet@...il.com> Date: Fri, 18 Nov 2016 17:18:03 -0800 > From: Eric Dumazet <edumazet@...gle.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@...gle.com> Applied.
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