David Sin - SMTS Engineer at AMD

David Sin

SMTS Engineer at AMD

Toronto, Ontario, Canada

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Summary

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David Sin is an application architect and SMTS engineer with over 5 years of hands-on experience building high-performance, multi-threaded C/C++ software for Linux-based embedded and telecommunications systems. He has a proven track record across product life cycles—from requirements and architecture to testing and performance tuning—at companies including AMD, Siemens, EXFO, and Osram. At AMD he contributes low-level work improving Linux checkpoint/restore (CRIU) behavior for AMD GPUs, showing expertise in device-driver interactions and system topology-aware restore logic. Comfortable in both individual contributor and scrum leadership roles, he blends deep systems programming with strong client-facing and team coordination skills. Based in Toronto with a computer engineering degree from Queen’s, he brings a pragmatic focus on cost-effective, scalable solutions for complex hardware-software integration challenges.

5 years of coding experience

19 years of employment as a software developer

Bachelor of Applied Science (B.A.Sc.), Computer Engineering, Bachelor of Applied Science (B.A.Sc.), Computer Engineering at Queen's University

Github Skills (13)

c1710

memory-management10

pg-restore10

re-store10

recover10

checkpoint10

amdgpu10

c1110

system-programming10

linux-kernel10

checkpointing10

multithreading9

container7

Programming languages (3)

C++ShellC

Github contributions (5)

checkpoint-restore/criu

May 2021 - Feb 2022

Checkpoint/Restore tool

Role in this project:

Back-end Developer

Contributions:14 reviews, 14 commits, 2 PRs in 9 months

Contributions summary:David's commits primarily focus on enhancing the `criu` project, a tool for checkpoint/restore functionality within the Linux kernel. They address issues related to device driver interactions, particularly with AMDGPU and KFD, ensuring file descriptors are handled correctly during restore. The contributions include bug fixes, performance improvements, and additions to handle libhsakmt shared memory files, improving the tool's ability to work with AMD GPUs. The user also implemented system topology parsing and GPU remapping logic, improving the restoration process on different hardware.

containerszero-downtimesuspendcheckpointcriu

RadeonOpenCompute/criu

Jan 2021 - Aug 2022

Enabling checkpoint restore in AMD GPUs

Contributions:184 commits in 1 year 6 months

cudaamdcheckpointgpurestore

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