netdev - Re: [PATCH 0/5] rtcache remove respin

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Message-ID: <1341515017.3265.6.camel@edumazet-glaptop>
Date:	Thu, 05 Jul 2012 21:03:37 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 0/5] rtcache remove respin

On Thu, 2012-07-05 at 03:15 -0700, David Miller wrote:
> From: Eric Dumazet <eric.dumazet@...il.com>
> Date: Mon, 02 Jul 2012 12:44:01 +0200
> 
> > If we still want __refcnt being on cache line boundary, we might find a
> > better way to accomplish this.
> 
> Back to this issue again.
> 
> Eric, if you take a look at net-next right now, I left a dummy padding
> in dst_entry where the neighbour pointer used to be.
> 
> Can you come up with some way to make use of that new space?
> 

If route cache is removed, I believe we can remove all paddings.

Each tcp session will have its own dst_entry, instead of being shared.



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