Cheng-chun Tu
Principal Software Engineer - Linux Kernel at NVIDIA
Sammamish, Washington, United States
Summary
🤩
Rockstar🎓
Top SchoolCheng-chun Tu is a Principal Software Engineer and Linux kernel specialist with a Ph.D. and over a decade of industrial experience building high-performance network dataplanes for cloud, DPU, and virtualization platforms. Currently at NVIDIA working on BlueField DPUs and Open vSwitch, he previously led cross-BU SDN dataplane architecture at VMware, bridging hardware offloads, eBPF/XDP, P4, and software forwarding. An active open-source maintainer and contributor, his work spans Linux kernel networking, iproute2 (ERSPAN support), DPDK, and long-standing contributions to Open vSwitch, including critical bug fixes and datapath features. He combines deep research grounding in OS and CPU architectures (x86/ARM) with hands-on experience in InfiniBand RDMA and cloud/Kubernetes networking, making him adept at both prototyping and production incident resolution. Based in Sammamish, WA, he is notable for translating academic rigor into robust, scalable network virtualization products used across public clouds and enterprise deployments.
11 years of coding experience
8 years of employment as a software developer
Bachelor's degree, Electrical and Electronics Engineering, 3.82, Bachelor's degree, Electrical and Electronics Engineering, 3.82 at National Chiao Tung UniversityfreebsdMaster, Dependable Computer System, Master, Dependable Computer System at Chalmers University of Technology, SwedenPh.D, Computer Science Department, Ph.D, Computer Science Department at Stony Brook University
Github Skills (20)
mellanox10
debug10
tunnel10
memory-management10
ip10
c1110
linux-kernel10
networking10
network-programming10
c1710
kernel10
driver10
ipv610
performance-optimization10
network-protocol10
Programming languages (10)
Github contributions (5)
openvswitch/ovs
Oct 2019 - Feb 2022
Open vSwitch
Role in this project:
Back-end Developer
Back-end DeveloperContributions:124 pushes, 4 branches in 2 years 4 months
Contributions summary:Cheng-chun primarily contributed to the Open vSwitch project by fixing memory leaks and bugs in various components. The contributions span multiple areas, including core functionality, control plane, and utilities such as ovs-ofctl and ovs-vsctl. The user's work improved the overall stability and resource management of the system, which is critical for a network virtualization project. The user also introduced functionality for the data path.
twitch
iproute2/iproute2
Aug 2017 - Apr 2020
Iproute2 Source Code Mirror - This is a publish-only repository. Please follow README.devel procedure for any changes.
Role in this project:Back-end Developer
Back-end DeveloperContributions:6 commits in 2 years 8 months
Contributions summary:Cheng-chun primarily focused on adding ERSPAN (Encapsulated Remote Switched Port Analyzer) tunnel support to the iproute2 utilities. They implemented ERSPAN type II support for both IPv4 and IPv6, including options for specifying version, direction, and hardware ID. They also added support for ERSPAN type I and collect metadata functionality, extending the capabilities of the networking tools.
linuxrouting
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