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From: Willy Tarreau <w@1wt.eu>
To: Tolga Ceylan <tolga.ceylan@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>,
	Tom Herbert <tom@herbertland.com>,
	Eric Dumazet <eric.dumazet@gmail.com>,
	Craig Gallek <cgallek@google.com>, Josh Snyder <josh@code406.com>,
	Aaron Conole <aconole@bytheb.org>,
	"David S. Miller" <davem@davemloft.net>,
	Linux Kernel Network Developers <netdev@vger.kernel.org>
Subject: Re: [PATCH 1/1] net: Add SO_REUSEPORT_LISTEN_OFF socket option as drain mode
Date: Thu, 24 Mar 2016 19:24:35 +0100	[thread overview]
Message-ID: <20160324182435.GA7682@1wt.eu> (raw)
In-Reply-To: <CALmu+SxF5dDEBwpk-R=V5DGZBed1rvjYGEJ+cU8ZhyAdLWshug@mail.gmail.com>

On Thu, Mar 24, 2016 at 11:20:49AM -0700, Tolga Ceylan wrote:
> I would appreciate a conceptual description on how this would work
> especially for a common scenario
> as described by Willy. My initial impression was that a coordinator
> (master) process takes this
> responsibility to adjust BPF filters as children come and go.

Indeed that would help, I don't know where to start from for now.

> Two popular software has similar use cases: nginx and haproxy. Another
> concern is with the
> introduction of BPF itself, should we expect a performance drop in
> these applications?

Knowing how picky Eric is about performance in such areas, I'm not
worried a single second about adopting something he recommends :-)
I just need to ensure it covers our users' needs. And maybe the
solution I mentionned in the other e-mail could work.

Willy

  reply	other threads:[~2016-03-24 18:24 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-27  0:30 [PATCH 1/1] net: Add SO_REUSEPORT_LISTEN_OFF socket option as drain mode Tolga Ceylan
2015-09-27  1:04 ` Eric Dumazet
2015-09-27  1:37   ` Tolga Ceylan
2015-09-27  1:44 ` Aaron Conole
2015-09-27  2:02   ` Tolga Ceylan
2015-09-27  2:24     ` Eric Dumazet
2015-11-11  5:41       ` Tom Herbert
2015-11-11  6:19         ` Eric Dumazet
2015-11-11 17:05           ` Tom Herbert
2015-11-11 17:23             ` Eric Dumazet
2015-11-11 18:23               ` Tom Herbert
2015-11-11 18:43                 ` Eric Dumazet
2015-11-12  1:09                   ` Eric Dumazet
2015-12-15 16:14                     ` Willy Tarreau
2015-12-15 17:10                       ` Eric Dumazet
2015-12-15 17:43                         ` Willy Tarreau
2015-12-15 18:21                           ` Eric Dumazet
2015-12-15 19:44                             ` Willy Tarreau
2015-12-15 21:21                               ` Eric Dumazet
2015-12-16  7:38                                 ` Willy Tarreau
2015-12-16 16:15                                   ` Willy Tarreau
2015-12-18 16:33                                     ` Josh Snyder
2015-12-18 18:58                                       ` Willy Tarreau
2015-12-19  2:38                                         ` Eric Dumazet
2015-12-19  7:00                                           ` Willy Tarreau
2015-12-21 20:38                                             ` Tom Herbert
2015-12-21 20:41                                               ` Willy Tarreau
2016-03-24  5:10                                                 ` Tolga Ceylan
2016-03-24  6:12                                                   ` Willy Tarreau
2016-03-24 14:13                                                     ` Eric Dumazet
2016-03-24 14:22                                                       ` Willy Tarreau
2016-03-24 14:45                                                         ` Eric Dumazet
2016-03-24 15:30                                                           ` Willy Tarreau
2016-03-24 16:33                                                             ` Eric Dumazet
2016-03-24 16:50                                                               ` Willy Tarreau
2016-03-24 17:01                                                                 ` Eric Dumazet
2016-03-24 17:26                                                                   ` Tom Herbert
2016-03-24 17:55                                                                     ` Daniel Borkmann
2016-03-24 18:20                                                                       ` Tolga Ceylan
2016-03-24 18:24                                                                         ` Willy Tarreau [this message]
2016-03-24 18:37                                                                         ` Eric Dumazet
2016-03-24 22:40                                                                       ` Yann Ylavic
2016-03-24 22:49                                                                         ` Eric Dumazet
2016-03-24 23:40                                                                           ` Yann Ylavic
2016-03-24 23:54                                                                             ` Tom Herbert
2016-03-25  0:01                                                                               ` Yann Ylavic
2016-03-25  5:28                                                                               ` Willy Tarreau
2016-03-25  6:49                                                                                 ` Eric Dumazet
2016-03-25  8:53                                                                                   ` Willy Tarreau
2016-03-25 11:21                                                                                     ` Yann Ylavic
2016-03-25 13:17                                                                                       ` Eric Dumazet
2016-03-25  0:25                                                                           ` David Miller
2016-03-25  0:24                                                                         ` David Miller
2016-03-24 18:00                                                                   ` Willy Tarreau
2016-03-24 18:21                                                                     ` Willy Tarreau
2016-03-24 18:32                                                                     ` Eric Dumazet
  -- strict thread matches above, loose matches on Subject: below --
2016-03-25 15:29 Craig Gallek
2016-03-25 16:21 ` Alexei Starovoitov
2016-03-25 16:31   ` Craig Gallek
2016-03-25 17:00     ` Eric Dumazet
2016-03-25 18:31       ` Willem de Bruijn

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