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From: David Miller <davem@davemloft.net>
To: herbert@gondor.apana.org.au
Cc: mingo@elte.hu, dada1@cosmosbay.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, a.p.zijlstra@chello.nl
Subject: Re: poor network loopback performance and scalability
Date: Mon, 21 Apr 2008 03:22:00 -0700 (PDT)	[thread overview]
Message-ID: <20080421.032200.209759978.davem@davemloft.net> (raw)
In-Reply-To: <20080421101908.GC9295@gondor.apana.org.au>

From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 21 Apr 2008 18:19:08 +0800

> I belive the current value is a legacy from the days when we didn't
> support skb page frags so everything had to be physically contiguous.

It's legacy from when my top-of-the-line UltraSPARC-I 130Mhz cpus
got the best loopback results using that value :-)

      reply	other threads:[~2008-04-21 10:21 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-21 18:51 [RFC,PATCH] loopback: calls netif_receive_skb() instead of netif_rx() Eric Dumazet
2008-02-21 20:14 ` Daniel Lezcano
2008-02-21 23:19   ` Eric Dumazet
2008-02-22 10:19     ` Daniel Lezcano
2008-02-27  2:21 ` David Miller
2008-02-27  7:20   ` Jarek Poplawski
2008-02-27  7:23     ` David Miller
2008-02-27  7:34       ` Jarek Poplawski
2008-03-01 10:26   ` Eric Dumazet
2008-03-04  4:55     ` David Miller
2008-03-04  5:15       ` Stephen Hemminger
2008-03-04  6:27       ` Eric Dumazet
2008-03-23 10:29     ` David Miller
2008-03-23 18:48       ` Eric Dumazet
2008-03-23 19:15         ` Andi Kleen
2008-03-29  1:36         ` David Miller
2008-03-29  8:18           ` Eric Dumazet
2008-03-29 23:54             ` David Miller
2008-03-31  6:38               ` Eric Dumazet
2008-03-31  9:48         ` Ingo Molnar
2008-03-31 10:01           ` Eric Dumazet
2008-03-31 10:12             ` Ingo Molnar
2008-04-01  9:19               ` Eric Dumazet
2008-04-03 14:06                 ` Pavel Machek
2008-04-03 16:19                   ` Eric Dumazet
2008-03-31 10:08           ` David Miller
2008-03-31 10:44             ` Ingo Molnar
2008-03-31 11:02               ` David Miller
2008-03-31 11:36                 ` poor network loopback performance and scalability (was: Re: [RFC,PATCH] loopback: calls netif_receive_skb() instead of netif_rx()) Ingo Molnar
2008-04-21  3:24                   ` Herbert Xu
2008-04-21  3:38                     ` poor network loopback performance and scalability David Miller
2008-04-21  8:11                       ` Ingo Molnar
2008-04-21  8:16                         ` David Miller
2008-04-21 10:19                           ` Herbert Xu
2008-04-21 10:22                             ` David Miller [this message]

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