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From: Eric Dumazet <eric.dumazet@gmail.com>
To: "David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>
Cc: netdev <netdev@vger.kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	Eric Dumazet <eric.dumazet@gmail.com>
Subject: [PATCH net-next 0/2] net: small csum optimizations
Date: Wed, 24 Nov 2021 12:24:44 -0800	[thread overview]
Message-ID: <20211124202446.2917972-1-eric.dumazet@gmail.com> (raw)

From: Eric Dumazet <edumazet@google.com>

After recent x86 csum_partial() optimizations, we can more easily
see in kernel profiles costs of add/adc operations that could
be avoided, by feeding a non zero third argument to csum_partial()

Eric Dumazet (2):
  gro: optimize skb_gro_postpull_rcsum()
  net: optimize skb_postpull_rcsum()

 include/linux/skbuff.h | 6 +++++-
 include/net/gro.h      | 4 ++--
 2 files changed, 7 insertions(+), 3 deletions(-)

-- 
2.34.0.rc2.393.gf8c9666880-goog


             reply	other threads:[~2021-11-24 20:24 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-24 20:24 Eric Dumazet [this message]
2021-11-24 20:24 ` [PATCH net-next 1/2] gro: optimize skb_gro_postpull_rcsum() Eric Dumazet
2021-11-24 20:24 ` [PATCH net-next 2/2] net: optimize skb_postpull_rcsum() Eric Dumazet
2021-11-25  9:41   ` David Laight
2021-11-25 13:32     ` Eric Dumazet
2021-11-25 14:29       ` David Laight
2021-12-02 13:10   ` Vladimir Oltean
2021-12-02 14:51     ` Eric Dumazet
2021-12-02 16:29       ` Vladimir Oltean
2021-12-02 19:32         ` Eric Dumazet
2021-12-02 20:37           ` Eric Dumazet
2021-12-02 21:07             ` Vladimir Oltean
2021-12-02 20:40           ` Vladimir Oltean
2021-12-02 20:58             ` Vladimir Oltean
2021-12-02 20:58             ` David Laight
2021-12-02 21:40               ` Vladimir Oltean
2021-12-03 14:51                 ` David Laight
2021-12-03 14:57                 ` David Laight
2021-12-03 16:14                   ` Vladimir Oltean
2021-12-03 16:30                     ` Eric Dumazet
2021-12-03 16:47                       ` David Laight
2021-12-03 16:58                         ` Eric Dumazet
2021-12-03 17:41                           ` David Laight
2021-12-02 15:06     ` David Laight
2021-12-02 15:22       ` Eric Dumazet
2021-11-26  5:20 ` [PATCH net-next 0/2] net: small csum optimizations patchwork-bot+netdevbpf

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