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From: "David S. Miller" <davem@redhat.com>
To: jros@ece.uci.edu
Cc: scott.feldman@intel.com, linux-kernel@vger.kernel.org,
	linux-net@vger.kernel.org, haveblue@us.ibm.com,
	Manand@us.ibm.com, kuznet@ms2.inr.ac.ru,
	christopher.leech@intel.com
Subject: Re: TCP Segmentation Offloading (TSO)
Date: Tue, 03 Sep 2002 00:39:13 -0700 (PDT)	[thread overview]
Message-ID: <20020903.003913.105174967.davem@redhat.com> (raw)
In-Reply-To: <JCEFIMMPGNNGFPMJJKINIEMJCDAA.jros@ece.uci.edu>

   From: "Jordi Ros" <jros@ece.uci.edu>
   Date: Tue, 3 Sep 2002 00:26:13 -0700

   What i am wondering is how come we only get a few percentage
   improvement in throughput

Because he's maxing out the physical medium already.

All the headers for each 1500 byte packet still have to hit the
physical wire, that isn't what is being eliminated.  It's just
what is going over the PCI bus to the card that is being made
smaller.

  reply	other threads:[~2002-09-03  7:41 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-02 17:45 TCP Segmentation Offloading (TSO) Feldman, Scott
2002-09-02 18:58 ` kuznet
2002-09-03  7:42   ` Hirokazu Takahashi
2002-09-03  7:51     ` David S. Miller
2002-09-03 11:27       ` Paul Mackerras
2002-09-03 11:29         ` David S. Miller
2002-09-03 12:21     ` kuznet
2002-09-03 13:03       ` Hirokazu Takahashi
2002-09-03 13:19         ` Hirokazu Takahashi
2002-09-03 13:22         ` kuznet
2002-09-03 21:05           ` David S. Miller
2002-09-03 21:20             ` David S. Miller
2002-09-04  1:02     ` H. Peter Anvin
2002-09-04  1:54       ` David S. Miller
2002-09-04 22:39       ` Gabriel Paubert
2002-09-04 22:41         ` H. Peter Anvin
2002-09-05  2:13           ` Hirokazu Takahashi
2002-09-05  2:21             ` David S. Miller
2002-09-05 10:28             ` Gabriel Paubert
2002-09-05 11:17               ` Jamie Lokier
2002-09-05 13:21                 ` Gabriel Paubert
2002-09-05 13:17                   ` David S. Miller
2002-09-08  4:20                   ` Hirokazu Takahashi
2002-09-08  4:29                     ` H. Peter Anvin
2002-09-04 23:17         ` Alan Cox
2002-09-05  0:09           ` Jamie Lokier
2002-09-02 19:06 ` Jeff Garzik
2002-09-02 23:13 ` David S. Miller
2002-09-03  4:58 ` Jordi Ros
2002-09-03  6:52   ` David S. Miller
2002-09-03  7:26     ` Jordi Ros
2002-09-03  7:39       ` David S. Miller [this message]
     [not found] <288F9BF66CD9D5118DF400508B68C4460283E564@orsmsx113.jf.intel.com.suse.lists.linux.kernel>
     [not found] ` <200209021858.WAA00388@sex.inr.ac.ru.suse.lists.linux.kernel>
     [not found]   ` <20020903.164243.21934772.taka@valinux.co.jp.suse.lists.linux.kernel>
     [not found]     ` <20020903.005119.50342945.davem@redhat.com.suse.lists.linux.kernel>
2002-09-03  9:05       ` Andi Kleen
2002-09-03 10:00         ` David S. Miller
2002-09-03 10:10           ` Andi Kleen
2002-09-03 10:09             ` David S. Miller
  -- strict thread matches above, loose matches on Subject: below --
2002-09-03 17:50 Feldman, Scott
2002-09-03 18:09 Manfred Spraul
2002-09-03 23:08 ` Hirokazu Takahashi

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