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From: Eric Dumazet <eric.dumazet@gmail.com>
To: Neil Horman <nhorman@tuxdriver.com>
Cc: Ben Greear <greearb@candelatech.com>,
	Jiri Pirko <jpirko@redhat.com>,
	netdev@vger.kernel.org, Alexey Dobriyan <adobriyan@gmail.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] pktgen: Clone skb to avoid corruption of skbs in ndo_start_xmit methods
Date: Wed, 20 Jul 2011 06:24:15 +0200	[thread overview]
Message-ID: <1311135855.3113.66.camel@edumazet-laptop> (raw)
In-Reply-To: <20110720020737.GB2692@neilslaptop.think-freely.org>

Le mardi 19 juillet 2011 à 22:07 -0400, Neil Horman a écrit :
> > 
> I think this is a good idea.  It lets pktgen dynamically make the clone/share
> decision dynamically and only impacts performance for those systems.
> 

Just let pktgen refuse to use clone_skb command for these devices.

At that point, an userland application is going to be faster and more
flexible than pktgen.

So when I said "remove pktgen" from distro it was not a joke.
Maybe its time to admit pktgen has to be removed from kernel sources.

$ wc net/core/pktgen.c
 3788 10881 92771 net/core/pktgen.c

Hmmm, 3788 lines, patched 180 times for a thing that only sends UDP
frames...




  parent reply	other threads:[~2011-07-20  4:24 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-19 19:52 [PATCH] pktgen: Clone skb to avoid corruption of skbs in ndo_start_xmit methods Neil Horman
2011-07-19 20:02 ` Eric Dumazet
2011-07-19 20:17   ` Joe Perches
2011-07-19 20:29   ` Jiri Pirko
2011-07-19 20:41     ` Eric Dumazet
2011-07-19 21:01       ` Ben Greear
2011-07-20  0:19       ` Neil Horman
2011-07-20  0:25         ` Rick Jones
2011-07-20 15:23           ` Loke, Chetan
2011-07-20  0:43         ` Eric Dumazet
2011-07-20  0:52           ` Ben Greear
2011-07-20  2:07             ` Neil Horman
2011-07-20  4:19               ` Ben Greear
2011-07-20  4:24               ` Eric Dumazet [this message]
2011-07-20 15:17                 ` Loke, Chetan
2011-07-20 15:18                 ` Neil Horman
2011-07-20 15:30                   ` Eric Dumazet
2011-07-20 15:39                     ` Neil Horman
2011-07-20 15:44                       ` Eric Dumazet
2011-07-20 16:19                         ` Neil Horman
2011-07-20 15:35                   ` Michał Mirosław
2011-07-20 15:40                     ` Neil Horman
2011-07-20 16:08                       ` Michał Mirosław
2011-07-20 16:18                         ` Neil Horman
2011-07-20 16:37                     ` Ben Greear
2011-07-20 16:33                   ` Ben Greear
2011-07-20 16:36                     ` Neil Horman
2011-07-21 22:01                   ` David Miller
2011-07-21 22:14                     ` Ben Greear
2011-07-21 22:19                       ` David Miller
2011-07-21 22:26                         ` Ben Greear
2011-07-21 23:50                         ` Neil Horman
2011-07-22  0:08                           ` David Miller
2011-07-22  1:37                             ` Neil Horman
2011-07-20  1:59           ` Neil Horman
2011-07-25 19:45 ` [PATCH 0/2] pktgen: Clone skb to avoid corruption of skbs in ndo_start_xmit methods (v2) Neil Horman
2011-07-25 19:45   ` [PATCH 1/2] net: add IFF_SKB_TX_SHARED flag to priv_flags Neil Horman
2011-07-25 20:11     ` Eric Dumazet
2011-07-26 14:54       ` Neil Horman
2011-07-25 19:45   ` [PATCH 2/2] net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared Neil Horman
2011-07-26 18:34     ` Krzysztof Halasa
2011-07-26 16:05 ` [PATCH 0/2] pktgen: Clone skb to avoid corruption of skbs in ndo_start_xmit methods (v3) Neil Horman
2011-07-26 16:05   ` [PATCH 1/2] net: add IFF_SKB_TX_SHARED flag to priv_flags Neil Horman
2011-07-28  5:42     ` David Miller
2011-07-28  8:15     ` Robert Olsson
2011-07-28 10:50       ` Neil Horman
2011-07-26 16:05   ` [PATCH 2/2] net: Audit drivers to identify those needing IFF_TX_SKB_SHARING cleared Neil Horman
2011-07-28  5:42     ` David Miller
2011-07-29  6:16   ` [PATCH 0/2] pktgen: Clone skb to avoid corruption of skbs in ndo_start_xmit methods (v3) Michael S. Tsirkin
2011-07-29 11:19     ` Neil Horman
2011-08-17 15:07   ` Ben Hutchings
2011-08-22  0:27     ` Neil Horman
2011-08-22 16:17       ` Ben Hutchings
2011-08-22 17:33         ` Ben Hutchings
2011-08-22 18:14         ` Neil Horman
2011-08-23 14:01           ` Ben Hutchings
2011-08-23 15:13             ` Neil Horman
2011-08-23 15:53               ` Ben Hutchings
2011-08-23 16:21                 ` Neil Horman

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