lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Fri, 04 May 2012 15:01:31 +0200
From:	Eric Dumazet <>
To:	David Miller <>
Subject: Re: [PATCH net-next] net: skb_peek()/skb_peek_tail() cleanups

On Tue, 2012-05-01 at 09:41 -0400, David Miller wrote:
> From: Eric Dumazet <>
> Date: Tue, 01 May 2012 04:31:46 +0200
> > From: Eric Dumazet <>
> > 
> > remove useless casts and rename variables for less confusion.
> > 
> > Signed-off-by: Eric Dumazet <>
> Applied, I really need to get back to completing the list_head
> conversion :-/

Actually doubly linked lists everywhere has a performance issue.

When we dequeue one skb, we must bring in cpu cache the next skb as
well, to perform the unlink.

In some places it would be better to not have a double linked list, and
only perform a prefetch(skb->next).

To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to
More majordomo info at

Powered by blists - more mailing lists