From: Herbert Xu <herbert@gondor.apana.org.au>
To: David Miller <davem@davemloft.net>,
rick.jones2@hp.com, therbert@google.com, wsommerfeld@google.com,
daniel.baluta@gmail.com, netdev@vger.kernel.org
Subject: Re: SO_REUSEPORT - can it be done in kernel?
Date: Sun, 27 Feb 2011 19:06:14 +0800 [thread overview]
Message-ID: <20110227110614.GA6246@gondor.apana.org.au> (raw)
In-Reply-To: <20110227110205.GE9763@canuck.infradead.org>
On Sun, Feb 27, 2011 at 06:02:05AM -0500, Thomas Graf wrote:
>
> I still suggest to merge this patch as a immediate workaround fix
> until we scale properly on a single socket and also as a workaround
> for applications which can't get rid of their per socket mutex quickly.
I disagree completely.
This patch adds a user-space API that we will have to carry
with us for perpetuity. I would only support this if we had
no other way around the problem.
If this does turn out to be mostly due to sendmsg contention
then fixing it is going to be much simpler than making the UDP
stack multiqueue capable.
I'm working on this right now.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2011-02-27 11:06 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 10:07 SO_REUSEPORT - can it be done in kernel? Daniel Baluta
2011-01-27 15:55 ` Bill Sommerfeld
2011-01-27 21:32 ` Tom Herbert
2011-02-25 12:56 ` Thomas Graf
2011-02-25 19:18 ` Rick Jones
2011-02-25 19:20 ` David Miller
2011-02-26 0:57 ` Herbert Xu
2011-02-26 2:12 ` David Miller
2011-02-26 2:48 ` Herbert Xu
2011-02-26 3:07 ` David Miller
2011-02-26 3:11 ` Herbert Xu
2011-02-26 7:31 ` Eric Dumazet
2011-02-26 7:46 ` David Miller
2011-02-27 11:02 ` Thomas Graf
2011-02-27 11:06 ` Herbert Xu [this message]
2011-02-28 3:45 ` Tom Herbert
2011-02-28 4:26 ` Herbert Xu
2011-02-28 11:36 ` Herbert Xu
2011-02-28 13:32 ` Eric Dumazet
2011-02-28 14:13 ` Herbert Xu
2011-02-28 14:22 ` Eric Dumazet
2011-02-28 14:25 ` Herbert Xu
2011-02-28 14:53 ` Eric Dumazet
2011-02-28 15:01 ` Thomas Graf
2011-02-28 14:13 ` Thomas Graf
2011-02-28 16:22 ` Eric Dumazet
2011-02-28 16:37 ` Thomas Graf
2011-02-28 17:07 ` Eric Dumazet
2011-03-01 10:19 ` Thomas Graf
2011-03-01 10:33 ` Eric Dumazet
2011-03-01 11:07 ` Thomas Graf
2011-03-01 11:13 ` Eric Dumazet
2011-03-01 11:27 ` Thomas Graf
2011-03-01 11:45 ` Eric Dumazet
2011-03-01 11:53 ` Herbert Xu
2011-03-01 12:32 ` Herbert Xu
2011-03-01 13:04 ` Eric Dumazet
2011-03-01 13:11 ` Herbert Xu
2011-03-01 13:03 ` Eric Dumazet
2011-03-01 13:18 ` Herbert Xu
2011-03-01 13:52 ` Eric Dumazet
2011-03-01 13:58 ` Herbert Xu
2011-03-01 16:31 ` Eric Dumazet
2011-03-02 0:23 ` Herbert Xu
2011-03-02 2:00 ` Eric Dumazet
2011-03-02 2:39 ` Herbert Xu
2011-03-02 2:56 ` Eric Dumazet
2011-03-02 3:09 ` Herbert Xu
2011-03-02 3:44 ` Eric Dumazet
2011-03-02 7:12 ` Tom Herbert
2011-03-02 7:31 ` Herbert Xu
2011-03-02 8:04 ` Eric Dumazet
2011-03-02 8:07 ` Herbert Xu
2011-03-02 8:24 ` Eric Dumazet
2011-03-01 12:01 ` Thomas Graf
2011-03-01 12:15 ` Herbert Xu
2011-03-01 13:27 ` Herbert Xu
2011-03-01 12:18 ` Thomas Graf
2011-03-01 12:19 ` Herbert Xu
2011-03-01 13:50 ` Thomas Graf
2011-03-01 14:06 ` Eric Dumazet
2011-03-01 14:22 ` Thomas Graf
2011-03-01 14:30 ` Thomas Graf
2011-03-01 14:52 ` Eric Dumazet
2011-03-01 15:07 ` Thomas Graf
2011-03-01 5:33 ` Eric Dumazet
2011-03-01 12:35 ` Herbert Xu
2011-03-01 12:36 ` [PATCH 1/5] inet: Remove unused sk_sndmsg_* from UFO Herbert Xu
2011-03-01 12:36 ` [PATCH 3/5] inet: Add ip_make_skb and ip_finish_skb Herbert Xu
2011-03-01 12:36 ` [PATCH 2/5] inet: Remove explicit write references to sk/inet in ip_append_data Herbert Xu
2011-03-02 6:15 ` inet: Replace left-over references to inet->cork Herbert Xu
2011-03-02 7:01 ` David Miller
2011-03-01 12:36 ` [PATCH 4/5] udp: Switch to ip_finish_skb Herbert Xu
2011-03-01 12:36 ` [PATCH 5/5] udp: Add lockless transmit path Herbert Xu
2011-03-01 16:43 ` SO_REUSEPORT - can it be done in kernel? Eric Dumazet
2011-03-01 20:36 ` David Miller
2011-02-28 11:41 ` [PATCH 2/5] net: Remove explicit write references to sk/inet in ip_append_data Herbert Xu
2011-03-01 5:31 ` Eric Dumazet
2011-02-28 11:41 ` [PATCH 1/5] net: Remove unused sk_sndmsg_* from UFO Herbert Xu
2011-03-01 5:31 ` Eric Dumazet
2011-02-28 11:41 ` [PATCH 3/5] inet: Add ip_make_skb and ip_send_skb Herbert Xu
2011-03-01 5:31 ` Eric Dumazet
2011-02-28 11:41 ` [PATCH 4/5] udp: Add lockless transmit path Herbert Xu
2011-02-28 11:41 ` Herbert Xu
2011-03-01 5:30 ` Eric Dumazet
2011-02-25 19:21 ` SO_REUSEPORT - can it be done in kernel? Eric Dumazet
2011-02-25 22:48 ` Thomas Graf
2011-02-25 23:15 ` Rick Jones
2011-02-25 19:51 ` Tom Herbert
2011-02-25 22:58 ` Thomas Graf
2011-02-25 23:33 ` Bill Sommerfeld
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