netdev - Re: [PATCH net-next] net: sched: run ingress qdisc without locks

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Message-ID: <5543746A.7080803@iogearbox.net>
Date:	Fri, 01 May 2015 14:41:14 +0200
From:	Daniel Borkmann <daniel@...earbox.net>
To:	Alexei Starovoitov <ast@...mgrid.com>,
	"David S. Miller" <davem@...emloft.net>
CC:	John Fastabend <john.r.fastabend@...el.com>,
	Jamal Hadi Salim <jhs@...atatu.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: sched: run ingress qdisc without locks

On 05/01/2015 05:14 AM, Alexei Starovoitov wrote:
> TC classifiers/actions were converted to RCU by John in the series:
> http://thread.gmane.org/gmane.linux.network/329739/focus=329739
> and many follow on patches.
> This is the last patch from that series that finally drops
> ingress spin_lock.
>
> Single cpu ingress+u32 performance goes from 22.9 Mpps to 24.5 Mpps.
>
> In two cpu case when both cores are receiving traffic on the same
> device and go into the same ingress+u32 the performance jumps
> from 4.5 + 4.5 Mpps to 23.5 + 23.5 Mpps
>
> Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
> Signed-off-by: Alexei Starovoitov <ast@...mgrid.com>

Looks good to me, thanks!

Acked-by: Daniel Borkmann <daniel@...earbox.net>
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