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From: "Chris Friesen" <cfriesen@nortel.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Renzo Davoli <renzo@cs.unibo.it>, linux-kernel@vger.kernel.org
Subject: Re: New Address Family: Inter Process Networking (IPN)
Date: Thu, 06 Dec 2007 17:02:40 -0600	[thread overview]
Message-ID: <47587F90.8010400@nortel.com> (raw)
In-Reply-To: <20071206220754.GF20595@one.firstfloor.org>

Andi Kleen wrote:

>>On a 1.4GHz P4 I measured a 44% increase in latency between a unix 
>>datagram and a UDP datagram.

> That's weird.

I just reran on a 3.2GHZ P4 running 2.6.11 (Fedora Core 4).  42% latency 
increase.

For stream sockets, unix gives approximately a 62% bandwidth increase 
over tcp.   (Although tcp could probably be tuned to do better than this.)

Chris

  parent reply	other threads:[~2007-12-06 23:03 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-05 16:40 New Address Family: Inter Process Networking (IPN) Renzo Davoli
2007-12-05 21:55 ` Stephen Hemminger
2007-12-06  5:38   ` Renzo Davoli
2007-12-06  5:43     ` Renzo Davoli
2007-12-06  6:04     ` Stephen Hemminger
2007-12-05 23:39 ` Andi Kleen
2007-12-06  5:30   ` Renzo Davoli
2007-12-06  6:19     ` Kyle Moffett
2007-12-06  6:59       ` David Newall
2007-12-06 16:34         ` Andi Kleen
2007-12-06 22:21           ` David Newall
2007-12-06 22:42             ` Andi Kleen
2007-12-06 16:35     ` Andi Kleen
2007-12-06 20:36       ` Chris Friesen
2007-12-06 21:26         ` Andi Kleen
2007-12-06 21:49           ` Chris Friesen
2007-12-06 22:07             ` Andi Kleen
2007-12-06 22:18               ` Renzo Davoli
2007-12-06 22:38                 ` Andi Kleen
2007-12-07  0:18                   ` Renzo Davoli
2007-12-06 23:02               ` Chris Friesen [this message]
2007-12-06 23:06                 ` Andi Kleen
2007-12-06 23:42                   ` Chris Friesen
2007-12-07  3:41         ` David Miller
2007-12-07  4:21           ` Chris Friesen
2007-12-07  4:54             ` Ben Pfaff
2007-12-07  6:40             ` David Miller
2007-12-07 10:03               ` Andi Kleen
2007-12-07 21:18                 ` AF_IPN: Inter Process Networking, try these Renzo Davoli
2007-12-08  2:07                   ` David Miller
2007-12-10 16:05               ` New Address Family: Inter Process Networking (IPN) Chris Friesen

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