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dperf is a high-performance network traffic generator and load testing tool based onDPDK.

• High Performance

  Built on DPDK, dperf can generate massive traffic using a single x86 server — achieving tens of millions of HTTP Connections Per Second (CPS), hundreds of Gbps throughput, and billions of concurrent connections.

• Comprehensive Statistics

  Provides detailed real-time metrics and identifies every packet drop or error.

• Versatile Use Cases

  • Load and stability testing for Layer 4 Load Balancers and gateways
  • Network performance benchmarking for cloud servers
  • Evaluation of NIC and CPU packet processing capabilities
  • Acts as a high-performance HTTP server or client for testing scenarios

All results were measured using the following hardware and configuration:

• CPU: Intel Xeon Gold 5418Y × 2
• Memory: 128 GB × 2
• NIC: Intel E810-C Dual-Port 100GbE × 2
• OS: Linux 5.10.0

dperf prints real-time statistics every second, including CPS, TPS, PPS, packet drops, socket errors, and HTTP status counts.Example output:

seconds 22                 cpuUsage 52pktRx   3,001,058          pktTx    3,001,025          bitsRx   2,272,799,040      bitsTx  1,920,657,600      dropTx  0arpRx   0                  arpTx    0                  icmpRx   0                  icmpTx  0                  otherRx 0          badRx 0synRx   1,000,345          synTx    1,000,330          finRx    1,000,350          finTx   1,000,350          rstRx   0          rstTx 0synRt   0                  finRt    0                  ackRt    0                  pushRt  0                  tcpDrop 0skOpen  1,000,330          skClose  1,000,363          skCon    230                skErr   0httpGet 1,000,345          http2XX  1,000,350          httpErr  0ierrors 0                  oerrors  0                  imissed  0

See the official website athttps://dperf.org/.

We welcome contributions! Please see theCONTRIBUTING file for details.

• Title: Testing Method and Apparatus for Network Devices
• Inventor: Jianzhang Peng
• Patent Number: CN114205274B
• Issue Date: June 11, 2024

We gratefully acknowledgexnetin for providing the high-performance testing platform used in our benchmarking experiments.

Jianzhang Peng holds a Ph.D. in Computer Science from the University of Science and Technology of China (USTC). He previously worked as a Principal Engineer at Baidu, where he contributed to the development of high-performance L4 load balancer systems. He initiated and developed the dperf project during his time at Baidu, and continues to maintain it as an open-source contributor. His current focus is on low-latency network protocol stacks for quantitative trading systems.

dperf is licensed under theApache License 2.0.