netdev - Re: [PATCH v2] net: dsa: Implement flow_dissect callback for tag

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Date:   Sat, 16 Feb 2019 16:35:45 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Rundong Ge <rdong.ge@...il.com>
Cc:     vivien.didelot@...il.com, Florian Fainelli <f.fainelli@...il.com>,
        davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: dsa: Implement flow_dissect callback for tag_dsa.

On Sat, Feb 16, 2019 at 04:38:25PM +0800, Rundong Ge wrote:
> Hi Andrew
> 
> I have tested the L3 forwarding throughput performance of my box (with
> an intel 4-core processor and each core’s frequency is 2.20GHz).
> In my test scenario, I generated 200 UDP flows (frame size is 64
> bytes) with different src/dst pairs from eth1 to eth0. Eth1 is a slave
> DSA device from mv88e6190x, eth0 is an intel NIC. Then get the max fps
> with no frame losing.
> 
> The max fps with RPS working is 400235fps, frames are hashed to four
> cores’ backlog.
> And the max fps without RPS is 199686fps.

Nice numbers, thanks.

     Andrew