From: David Miller <davem@davemloft.net>
To: dada1@cosmosbay.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] NET : Optimizes inet_getpeer()
Date: Tue, 06 Mar 2007 20:23:36 -0800 (PST) [thread overview]
Message-ID: <20070306.202336.11599348.davem@davemloft.net> (raw)
In-Reply-To: <200703061133.20389.dada1@cosmosbay.com>
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Tue, 6 Mar 2007 11:33:20 +0100
> [PATCH] NET : Optimizes inet_getpeer()
>
> 1) Some sysctl vars are declared __read_mostly
>
> 2) We can avoid updating stack[] when doing an AVL lookup only.
>
> lookup() macro is extended to receive a second parameter, that may be NULL
> in case of a pure lookup (no need to save the AVL path). This removes
> unnecessary instructions, because compiler knows if this _stack parameter is
> NULL or not.
>
> text size of net/ipv4/inetpeer.o is 2063 bytes instead of 2107 on x86_64
>
> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Applied, thanks Eric.
next prev parent reply other threads:[~2007-03-07 4:23 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 4:26 [RFC PATCH]: Dynamically sized routing cache hash table David Miller
2007-03-06 7:14 ` Eric Dumazet
2007-03-06 7:23 ` David Miller
2007-03-06 7:58 ` Eric Dumazet
2007-03-06 9:05 ` David Miller
2007-03-06 10:33 ` [PATCH] NET : Optimizes inet_getpeer() Eric Dumazet
2007-03-07 4:23 ` David Miller [this message]
2007-03-06 13:42 ` [RFC PATCH]: Dynamically sized routing cache hash table Robert Olsson
2007-03-06 14:18 ` Eric Dumazet
2007-03-06 17:05 ` Robert Olsson
2007-03-06 17:20 ` Eric Dumazet
2007-03-06 18:55 ` Robert Olsson
2007-03-06 9:11 ` Nick Piggin
2007-03-06 9:17 ` David Miller
2007-03-06 9:22 ` Nick Piggin
2007-03-06 9:23 ` Eric Dumazet
2007-03-06 9:41 ` Nick Piggin
2007-03-06 13:26 ` Robert Olsson
2007-03-06 22:20 ` David Miller
2007-03-08 6:26 ` Nick Piggin
2007-03-08 13:35 ` Robert Olsson
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