From: Andi Kleen <andi@firstfloor.org>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andi Kleen <andi@firstfloor.org>,
"David S. Miller" <davem@davemloft.net>,
Tom Herbert <therbert@google.com>,
Linux Netdev List <netdev@vger.kernel.org>
Subject: Re: [PATCH net-next-2.6] net: Xmit Packet Steering (XPS)
Date: Fri, 20 Nov 2009 23:37:23 +0100 [thread overview]
Message-ID: <20091120223723.GA4460@basil.fritz.box> (raw)
In-Reply-To: <4B07188C.2070808@gmail.com>
On Fri, Nov 20, 2009 at 11:30:36PM +0100, Eric Dumazet wrote:
> Andi Kleen a écrit :
> >
> > Do you have numbers on this? It seems like a lot of effort to avoid transfering
> > a few cache lines.
>
> Lot of efforts ? hmm...
Well lots of code at least. Perhaps I'm old fashioned, but I always like to have
each code justify its complexity.
It seems like a very narrow special case. Or perhaps this is something that
should be a general library function for all allocator users?
> Yes, I know, but slab/slub is already quite optimized :)
Well it still has a lot of problems, other benchmarks suffer too.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.
next prev parent reply other threads:[~2009-11-20 22:37 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-19 23:46 [PATCH net-next-2.6] net: Xmit Packet Steering (XPS) Eric Dumazet
2009-11-20 2:12 ` Changli Gao
2009-11-20 4:58 ` Eric Dumazet
2009-11-20 5:11 ` Changli Gao
2009-11-20 5:24 ` Eric Dumazet
2009-11-20 5:34 ` Changli Gao
2009-11-20 5:42 ` Eric Dumazet
2009-11-20 5:50 ` Changli Gao
[not found] ` <65634d660911191641o4210a797mf1e8168dd8dd8b60@mail.gmail.com>
2009-11-20 5:08 ` Eric Dumazet
2009-11-20 13:32 ` Jarek Poplawski
2009-11-20 14:45 ` Eric Dumazet
2009-11-20 20:04 ` Jarek Poplawski
2009-11-20 21:43 ` Eric Dumazet
2009-11-20 22:08 ` Jarek Poplawski
2009-11-20 22:21 ` Eric Dumazet
2009-11-20 20:51 ` Andi Kleen
2009-11-20 20:53 ` David Miller
2009-11-20 22:30 ` Eric Dumazet
2009-11-20 22:37 ` Andi Kleen [this message]
[not found] ` <65634d660911201642k3930dc78vd576e0e89dc0c794@mail.gmail.com>
2009-11-21 6:58 ` Eric Dumazet
2009-11-20 20:53 ` Jarek Poplawski
2009-11-20 21:35 ` Eric Dumazet
2009-11-20 21:43 ` Joe Perches
2009-11-20 21:49 ` David Miller
2009-11-20 22:01 ` Eric Dumazet
2009-11-20 22:34 ` David Miller
2009-11-20 22:32 ` David Miller
2009-11-20 22:36 ` Eric Dumazet
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