Express Logic’s NETX™ TCP/IP Stack Achieves Near-Wire Speed on Xilinx’s Zynq-7000 Platform
San Diego, CA (December 10, 2012)
Express Logic, Inc., the worldwide leader in royalty-free, real-time operating systems (RTOS), announced that its NETX™DUO TCP/IP stack has achieved an outstanding near-wire speed of 910-940 Mbps on Xilinx’s Zynq™-7000 All Programmable SoC, a new category of devices which combine an ARM® dual-core Cortex™-A9 MPCore™ processing system with advanced 28nm programmable logic. NETX™DUO, Express Logic’s dual IPv4/IPv 6 TCP/IP stack supports over 12 application protocols, including TCP/IP, UDP, DHCP, FTP, SNMP, and others that make it ideal for the high-performance connectivity needs of today’s consumer, medical and industrial devices. NETX™DUO’s functionality and efficiency enable Zynq-7000 devices to deliver a combination of maximum performance and robust connectivity, reducing design costs, and speeding time to market.
To achieve near-wire speeds, NETX™DUO takes advantage of Zynq-7000’s gigabit Ethernet port, hardware checksum accelerator, and dedicated Ethernet MAC DMA engine that is integrated into its programmable logic, to maximize network transfer speed. Because TCP/IP stacks typically achieve significantly less than 100% of the hardware’s maximum capability, developers often have to choose faster, more expensive, power-hungry processors to gain desired network performance. In contrast, NETX™DUO achieves 91-94% of maximum wire speed on Zynq-7000 devices running on only one of its 2 Cortex-A9 processors, freeing up the other A9 processor for functions that can run simultaneously without slowing network performance.
“Not all TCP/IP stacks are equal,” confirmed William E. Lamie, President of Express Logic. “In addition to our NETX™DUO stack performing better than others, studies confirm that our users consistently achieve lower development costs and faster time to market. To reduce overall costs, developers should focus on stacks which are optimized to get the most out of the hardware. NETX™DUO delivers outstanding performance on Zynq-7000 devices, warranting significant consideration by the performance-conscious developer.”
“The Ethernet throughput achieved by Express Logic’s NETX™DUO stack on the Zynq-7000 All Programmable SoC is outstanding. The Zynq-7000 architecture was designed to enable the highest Ethernet throughput, and the NETX™DUO performance results validate many of our architectural choices,” said Xilinx Director of Processing Technical Marketing Greg Brown,. “Ethernet is ubiquitous, and the NETX™DUO stack offers a very appealing solution for many of the applications that the Zynq-7000 devices serve.”
NETX™DUO performance was measured using iperf, the open-source benchmark tool that has become the industry standard for measuring network throughput. iperf runs on a Windows host connected to a Xilinx Zynq-7000 SoC ZC702 Evaluation Kit via Ethernet. The iperf TCP and UDP results were served by NETX™DUO as a web page and displayed by Internet Explorer on the host PC.