From: Brian Bloniarz <bmb@athenacr•com>
To: Rick Jones <rick.jones2@hp•com>
Cc: David Miller <davem@davemloft•net>,
therbert@google•com, eric.dumazet@gmail•com,
netdev@vger•kernel.org
Subject: Re: [PATCH] bnx2x: add support for receive hashing
Date: Mon, 26 Apr 2010 19:27:17 -0400 [thread overview]
Message-ID: <4BD62155.7080104@athenacr.com> (raw)
In-Reply-To: <4BD5F553.6020006@hp.com>
Rick Jones wrote:
> By and large, customers do not do anything "substantial" with UDP. NFS
> went to TCP mounts 99 times out of 10 many years ago, leaving DNS as
> about the only thing left*. So, customers will not be chomping at the
> bit for improved UDP scalability/performance. They would though, be
> jumping up and down demanding iSCSI performance and by implication all
> that comes along for the ride.
I work for a finance firm, and I've met a lot of guys who are
chomping at the bit for improved UDP performance. It's a
huge huge deal in our field. I'm nothing more than one customer
but I have a pretty negative reaction to this sentiment.
I'm also one of the people who occasionally bugs Eric Dumazet
about it :)
One saving grace for the financial multicast case: I think it's
pretty typical for the dest IP to be different for each flow
(different multicast groups). I confirmed on my multi-queue
bnx2 NIC (BCM5709) that those are spread out across the queues,
presumably the hash is similar.
next prev parent reply other threads:[~2010-04-27 0:00 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-23 5:54 [PATCH] bnx2x: add support for receive hashing Tom Herbert
2010-04-23 7:11 ` David Miller
2010-04-26 17:20 ` Eric Dumazet
2010-04-26 17:38 ` Tom Herbert
2010-04-26 17:47 ` Ben Hutchings
2010-04-26 17:56 ` David Miller
2010-04-26 18:04 ` David Miller
2010-04-26 18:19 ` Tom Herbert
2010-04-26 18:22 ` David Miller
2010-04-26 20:19 ` Rick Jones
2010-04-26 20:40 ` David Miller
2010-04-26 20:48 ` Rick Jones
2010-04-26 20:53 ` David Miller
2010-04-26 21:12 ` Rick Jones
2010-04-27 18:31 ` Eilon Greenstein
2010-04-27 19:30 ` Eric Dumazet
2010-04-26 20:58 ` Stephen Hemminger
2010-04-26 21:11 ` jamal
2010-04-26 21:14 ` jamal
2010-04-26 23:27 ` Brian Bloniarz [this message]
2010-04-27 13:37 ` Brian Bloniarz
2010-04-27 14:30 ` Eric Dumazet
2010-04-27 15:44 ` Brian Bloniarz
2010-04-27 16:51 ` David Miller
2010-04-27 17:02 ` Brian Bloniarz
2010-04-27 17:06 ` David Miller
2010-04-27 17:13 ` Eric Dumazet
2010-04-27 17:20 ` David Miller
2010-04-27 17:37 ` Eric Dumazet
2010-04-27 20:21 ` [PATCH net-next-2.6] net: sk_add_backlog() take rmem_alloc into account Eric Dumazet
2010-04-27 21:43 ` David Miller
2010-04-27 22:11 ` David Miller
2010-04-27 22:19 ` Eric Dumazet
2010-04-28 15:41 ` Brian Bloniarz
2010-04-28 15:52 ` Eric Dumazet
2010-04-27 17:31 ` [PATCH] bnx2x: add support for receive hashing Tom Herbert
2010-04-27 17:36 ` Eric Dumazet
2010-07-04 16:36 ` Vladislav Zolotarov
2010-07-04 16:46 ` Vladislav Zolotarov
2010-07-06 7:16 ` Vladislav Zolotarov
2010-07-07 19:17 ` Tom Herbert
2010-07-08 8:40 ` Vladislav Zolotarov
2010-07-11 2:12 ` David Miller
2010-07-11 10:02 ` Vladislav Zolotarov
2010-07-11 13:16 ` Vladislav Zolotarov
2010-07-11 16:45 ` Eric Dumazet
2010-07-11 17:22 ` Vladislav Zolotarov
2010-07-11 17:41 ` Eric Dumazet
2010-07-11 18:18 ` Vladislav Zolotarov
2010-07-11 22:34 ` David Miller
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