Pavel Begunkov
Kernel Engineer at Meta
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolPavel Begunkov is a Kernel Engineer based in London with a decade of experience specializing in Linux kernel development and I/O performance optimization. He contributes to high-profile projects such as Linus Torvalds' linux tree and axboe/liburing, where he has driven zerocopy networking, vectored registered buffers, and io_uring test coverage and refactors. At Meta he applies deep kernel internals expertise to scale real-world systems, building on prior work in SSD QoS at SK hynix and checkpoint/restore tooling with CRIU. Pavel combines academic rigor from a master’s in computer software engineering with practical research and teaching experience, enabling him to both prototype and harden low-level features. Colleagues rely on him to eliminate duplication, prevent subtle vulnerabilities, and squeeze measurable performance gains from complex I/O paths.
11 years of coding experience
2 years of employment as a software developer
Master's degree, Computer Software Engineering, Master's degree, Computer Software Engineering at St. Petersburg Academic University of the Russian Academy of SciencesBachelor of Applied Science (B.A.Sc.), Computational and Applied Mathematics, Bachelor of Applied Science (B.A.Sc.), Computational and Applied Mathematics at Southern Federal University (former Rostov State University)
Russian, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (12)
c1710
asynchronous10
kernel10
low-level-programming10
system-programming10
c1110
linux-kernel10
networking10
async10
testing10
performance-optimization9
memory-management8
Programming languages (5)
Github contributions (5)
axboe/liburing
Oct 2019 - Jan 2023
Library providing helpers for the Linux kernel io_uring support
Role in this project:
Back-end Developer
Back-end DeveloperContributions:27 reviews, 165 commits, 830 comments in 3 years 3 months
Contributions summary:Pavel primarily contributed to the development and testing of the `io_uring` library, a Linux kernel feature for asynchronous I/O operations. Their contributions included writing tests to improve code coverage and ensure the reliability of the library's features, such as deferred requests and zerocopy send operations, and the associated features. They also refactored and optimized existing code and added new helpers for common operations. The work focused on improving the library's functionalities to provide the best performance and usability.
linux-kernel
torvalds/linux
Jan 2023 - Mar 2023
Linux kernel source tree
Role in this project:Back-end Developer
Back-end DeveloperContributions:40 commits in 2 months
Contributions summary:Pavel primarily contributed to the io_uring subsystem within the Linux kernel, focusing on improvements and new features related to networking and zerocopy operations. Their work included refactoring code for improved efficiency, such as simplifying iovec handling and eliminating code duplication. The user also implemented new functionalities like vectored registered buffers for enhanced performance, which demonstrates a deep understanding of kernel internals and I/O optimization techniques. They also addressed existing bugs and implemented measures to prevent potential vulnerabilities.
linux-kernel
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