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A Geek’s Page

Cong Wang on Linux kernel internals — eBPF, networking, memory — alongside essays on taste, competition and working in tech.

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The Highest Perfection Looks Imperfect
October 3rd, 2026•wangcong.org
Ego Is Not a Flaw, It Is a Disaster
September 10th, 2026•wangcong.org
Your Biggest Competitor Has Your Face
July 19th, 2026•wangcong.org
Why I Stopped Arguing With People
June 30th, 2026•wangcong.org
Personal Taste Is the Moat
January 13th, 2026•wangcong.org
eBPF Trend Analysis
February 27th, 2025•wangcong.org
Persistent Memory in Linux Kexec
February 9th, 2025•wangcong.org
Two-Phase eBPF Program Signing
February 2nd, 2025•wangcong.org
Understanding struct __sk_buff
August 15th, 2021•wangcong.org
How to pretend to be a Linux kernel expert
March 14th, 2019•wangcong.org
OverTheWire Advent writeup — Boxy
December 8th, 2018•wangcong.org
CSAW CTF writeup — A Tour of x86
September 18th, 2018•wangcong.org
The design of lock_sock() in Linux kernel
August 25th, 2018•wangcong.org