From: David Miller <davem@davemloft.net>
To: edumazet@google.com
Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com
Subject: Re: [PATCH net-next 0/2] tcp: final work on SYNFLOOD behavior
Date: Fri, 15 Apr 2016 16:46:13 -0400 (EDT) [thread overview]
Message-ID: <20160415.164613.240856722381350785.davem@davemloft.net> (raw)
In-Reply-To: <1460610340-22163-1-git-send-email-edumazet@google.com>
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 13 Apr 2016 22:05:38 -0700
> In the first patch, I remove the costly association of SYNACK+COOKIES
> to a listener. I believe other parts of the stack should be ready.
>
> The second patch removes a useless write into listener socket
> in tcp_rcv_state_process(), incurring false sharing in
> tcp_conn_request()
>
> Performance under SYNFLOOD goes from 3.2 Mpps to 6 Mpps.
Geese, you almost make it look too easy....
> Test was using a single TCP listener, on a host with 8 RX queues
> on the NIC, and 24 cores (48 ht)
Looks good, series applied, thanks Eric.
prev parent reply other threads:[~2016-04-15 20:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-14 5:05 [PATCH net-next 0/2] tcp: final work on SYNFLOOD behavior Eric Dumazet
2016-04-14 5:05 ` [PATCH net-next 1/2] tcp: do not mess with listener sk_wmem_alloc Eric Dumazet
2016-04-14 5:05 ` [PATCH net-next 2/2] tcp: remove false sharing in tcp_rcv_state_process() Eric Dumazet
2016-04-15 20:46 ` David Miller [this message]
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