From: David Miller <davem@davemloft.net>
To: therbert@google.com
Cc: netdev@vger.kernel.org
Subject: Re: Very low latency TCP for clusters
Date: Mon, 19 Jul 2010 10:35:41 -0700 (PDT) [thread overview]
Message-ID: <20100719.103541.133386663.davem@davemloft.net> (raw)
In-Reply-To: <AANLkTilNmNZbFWS8LF-UHU65QYIC32HZlgVZ7lXJHxPh@mail.gmail.com>
From: Tom Herbert <therbert@google.com>
Date: Mon, 19 Jul 2010 10:05:19 -0700
> Per connection queues (supported by device) should eliminate costs
> of connection look-up, hopefully some locking.
What are these per-connection queues exactly?
Is it like GRO and just accumulates in-order packets for a flow?
Or it is something more like Jacobson's net channels?
If it's the former, we have it already. If it's the
latter we've found it to be utterly impractical due to all
of the facilities we have which live between the device
and the socket layer (netfilter, packet scheduler, IPSEC,
etc.)
next prev parent reply other threads:[~2010-07-19 17:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-19 17:05 Very low latency TCP for clusters Tom Herbert
2010-07-19 17:35 ` David Miller [this message]
2010-07-19 17:41 ` Eric Dumazet
2010-07-19 18:44 ` Tom Herbert
2010-07-19 19:27 ` David Miller
2010-07-19 22:03 ` Eric Dumazet
2010-07-19 23:37 ` Tom Herbert
2010-07-20 5:26 ` Eric Dumazet
2010-07-20 17:24 ` Rick Jones
2010-07-20 12:57 ` Brian Bloniarz
2010-07-19 18:13 ` Rick Jones
2010-07-19 18:28 ` Nivedita Singhvi
2010-07-19 19:46 ` Mitchell Erblich
2010-07-19 21:16 ` Tom Herbert
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