Performance

These benchmark performance numbers were obtained by connecting Xilinx boards to Linux PCs/server machines (Ubuntu/Red Hat Enterprise).
The tool used is netperf (Refer to tool information below).
The protocol, MTU size and option to note CPU load can all be selected from netperf/netserver options

Zynq

Board: ZC706
CPU Freq: 666MHz (A9)
Link Speed: 1000Mbps, Full duplex
Linux version: 4.19

Linux version: 5.4

NOTE- There is ~10% drop in performance (compared to 2019.2) for 1500 MTU.
The drop is due to this commit enabling CONFIG_OPTIMIZE_INLINING forcibly in linux kernel. It is observed on GEM and Xilinx Axi Ethernet drivers on Zynq.

Kernel and networking stack has a large number of inline functions and it could be some unoptimized inline function (could also be dependent on gcc version) leading to performance drop.

The plan is to document this performance drop on Zynq and initiate a discussion with mainline community so that it is analyzed by respective kernel maintainers.

ZynqMP

Board: ZCU102
CPU Freq 1100MHz (A53)
Link Speed 1000Mbps, Full duplex
DDR 533MHz
CCU: No
Linux version: 5.4

Test Procedure

Diagnostic and Protocol Tests

PING

This utility used to test the reachability of a host on an Internet Protocol(IP) network and to measure the round trip time for messages sent from the originating host to a destination computer.
How to run:

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ping <Remote IP Address>

WebServer

Connect zynq board to a Linux x86 machine. Ensure that telnet server is running on the Zynq board. It tests for remote access for Zynq board on host machine
Open a web browser on host machine and enter the static IP assigned to zynq board. Webpage is expected to be displayed properly.

Telnet

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telnet <Server IP Address>

FTP & TFTP

How to run:
Open a ftp client on the host with the Zynq.

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x86> ftp 192.168.1.10

Transfer a big enough file (in MBs) using mput command.

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x86> mput <file_name>

File transfer should be completed without any error.

Pkt Generator

Please refer to link below for how to run and various options
https://www.kernel.org/doc/Documentation/networking/pktgen.txt

Performance Tests

Netperf

How to run:
Server:

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netserver

Client:

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taskset 2 ./netperf -H <Server IP> -t TCP_STREAM taskset 2 ./netperf -H <Server IP> -t UDP_STREAM

For more information please refer to the link below:
http://www.netperf.org/netperf/

Iperf

How to run:
Server:

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./iperf_arm -s -u ./iperf_arm -s

Client:

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./iperf_arm -c <Server IP> -u -b <banwidth> ./iperf_arm -c <Server IP>

For more information please refer to the link below:
http://en.wikipedia.org/wiki/Iperf

Stress Test

Iperf with option -d

Run iperf in dual testing mode. This will cause the server to connect back to the client on the port specified in the -L option (or defaults to the port the client connected to the server on). This is done immediately therefore running the tests simultaneously.

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./iperf_arm -c <Server IP> -d

Ping flood test

Users can send hundred or more packets per second using -f option. It prints a ‘.’ when a packet is sent, and a backspace is printed when a packet is received

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ping -f localhost

PTP

1588 synchronization can be tested on ZynqMP using open source linuxptp application.
http://linuxptp.sourceforge.net/
The setup requires a master with precise clock and timstamping capabilities, typically a NIC or another 1588 capable device.
How to run
master:

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#ptp4l -i <interface name> -m

slave:

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#ptp4l -i <interface name> -s -m

Mainline status

The macb driver is currently at mainline kernel 5.4 .19 with some patches pulled in from 5.0. Xilinx local patches are in upstream 5.0, 5.1 and net-next 5.2later kernels. The patches that not yet in any mainline kernel are as follows: