netdev - Re: [PATCH net-next 0/3] openvswitch: Add STT support.

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Date:	Mon, 2 Feb 2015 08:15:34 -0800
From:	Tom Herbert <therbert@...gle.com>
To:	Jesse Gross <jesse@...ira.com>
Cc:	Pravin B Shelar <pshelar@...ira.com>,
	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 0/3] openvswitch: Add STT support.

Here is my data running STT and comparing against VXLAN, GUE, and
native (no encapsulation). This is using bnx2x.

TCP_STREAM IPv4 1 connection
  STT
    2.33% TX CPU utilization
    3.63% RX CPU utilization
    8790 Mbps
  GRE/GUE (RCO, GSO, GRO)
    5.55% TX CPU utilization
    6.67% RX CPU utilization
    9106 Mbps
  VXLAN (RCO, GSO, GRO)
    5.07% TX CPU utilization
    5.95% RX CPU utilization
    9061 Mbps
  Native (no ecapsulation)
    2.48% TX CPU utilization
    3.96% RX CPU utilization
    9411 Mbps

TCP_STREAM IPv4 200 connections
  STT
    8.36% TX CPU utilization
    9.29% RX CPU utilization
    9389 Mbps
  GUE/GRE (RCO, GSO, GRO)
    9.98% TX CPU utilization
    13.69% RX CPU utilization
    9132 Mbps
  VXLAN (RCO, GSO, GRO)
    11.79% TX CPU utilization
    13.88% RX CPU utilization
    9093 Mbps
  Native (no ecapsulation)
    6.05% TX CPU utilization
    7.27% RX CPU utilization
    9378 Mbps

TCP_RR IPv4 200 connections
  STT
    41.91% CPU utilization
    345/406/594 90/95/99% latencies
    562560 tps
  GUE/GRE (RCO, GSO, GRO)
    93.03% CPU utilization
    160/255/467 90/95/99% latencies
    1.1401e+06 tps
  VXLAN (RCO, GSO, GRO)
    93.73% CPU utilization
    157/249/448 90/95/99% latencies
    1.15655e+06 tps
  Native (no ecapsulation)
    87.46% CPU utilization
    120/178/292 90/95/99% latencies
    1.51747e+06 tps
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