From: Eric Dumazet <eric.dumazet@gmail.com>
To: David Miller <davem@davemloft.net>
Cc: joe@perches.com, steffen.klassert@secunet.com,
netdev@vger.kernel.org, timo.teras@iki.fi
Subject: Re: dst->obsolete has become pointless
Date: Thu, 10 Nov 2011 01:33:43 +0100 [thread overview]
Message-ID: <1320885223.5825.37.camel@edumazet-laptop> (raw)
In-Reply-To: <20111109.192427.661860445333469011.davem@davemloft.net>
Le mercredi 09 novembre 2011 à 19:24 -0500, David Miller a écrit :
> We can only use it in this scenerio if it universally
> uses the same type. This is due to the by-hand layout
> of the rest of the structure such that __refcnt ends
> up on a different cache line.
> --
tbench (or any tcp on loopback workload) is currently hitting a single
dst refcnt because a single dst is shared by all sockets...
Now some information was migrated to inetpeer, I wonder if we could not
allocate a private dst for a socket ?
Just an idea before the night...
next prev parent reply other threads:[~2011-11-10 0:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-05 3:09 dst->obsolete has become pointless David Miller
2011-11-08 9:34 ` Steffen Klassert
2011-11-08 17:20 ` David Miller
2011-11-08 18:59 ` David Miller
2011-11-09 12:49 ` Joe Perches
2011-11-09 19:20 ` David Miller
2011-11-09 23:56 ` Joe Perches
2011-11-10 0:24 ` David Miller
2011-11-10 0:33 ` Eric Dumazet [this message]
2011-11-10 0:47 ` David Miller
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