Zynq SSE - Benchmarks for the Xilinx ZC706

This Technical Brief shows the Benchmark results you will see after correctly setting up the system as shown in the techtip: Zynq SATA Storage Extension.

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Block Diagram

The block diagram shown below gives an overview over the Zynq SSE reference design: Within the Zynq Programmable Logic (PL) the MLE storage micro-architecture instantiates the DMA and the SATA Host Controller IP blocks. The storage micro-architecture itself interfaces with the Zynq Processing System (PS) via the high-performance AXI HP0 slave port. The ARM A9 in the PS runs Xilinx PetaLinux and the SATA Linux kernel driver.

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Implementation

 

Implementation Details
Design Type PS + PL
SW Type Linux (Petalinux)
CPUs 2 CPUs 700 MHz
PS Features DDR, USB, UART, ETHERNET
PL Cores ASICS.WS SATA IP
Boards/Tools ZC706, XM104
Xilinx Tools Version Vivado 2014.1, PETALINUX 2013-2
Other Details Samsung 840 SSD(including Cable and Power Supply), SD-Card

 

Adress Map
  Base Address Size Interface
SATA IP 0x41000000 4K S AXI
DMA IP 0x41010000 4K S AXI, M AXI

 

Files Provided
BOOT.bin Compilation of Bitstream, FSBL and U-Boot
Image.ub Linux Ramdisk Image

 

Step by Step instructions

 

In front of Benchmarking the System, the Tech Tip “Zynq- Sata Storage Tech Tip” should be executed to have a working system. For Benchmarking the System, a tool called FIO is used. FIO is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user. The typical use of FIO is to write a job file matching the I/O load one wants to simulate. We will now execute FIO with different Block sizes to see the impact on the Read and Write speeds of the system. Apply the following commands to the running SATA system, varying the Block size by using different values from 4k to 16M.

Read:
fio –ioengine=sync –direct=1 –rw=read –runtime=10 –filename=/dev/sda –size=1g –name=job1 –numjobs=4 –bs=4k
Write:
fio –ioengine=sync –direct=1 –rw=write –runtime=10 –filename=/dev/sda –size=1g –name=job1 –numjobs=4 –bs=4k


Expected Results

 

The user should see a Performance (given the right SSD) as shown in the Graph below:

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Figure 1: Benchmark on a -2 FPGA at 700 MHZ CPU speed