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dxu's blog

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Posts: 51 from 10 Apr 2017 to 1 Jan 2026
Posting: now and then (1 in the last year)
Kind: personal blog
Feed: https://dxuuu.xyz/atom.xml

2026 1

1 JanParameter-efficient fine-tuning in tinygrad

2025 2

9 FebNix dependency tree
18 JanFlaky tests, or: why not to ignore mysteries

2024 4

24 DecApplication blackbox
16 SepBig strings in bpftrace
7 AprReading local variables with bpftrace
30 Janerrno and libc

2023 16

24 DecInnovative –help messages
11 DecPull request review: still files!
25 NovKernel IPIs
19 SepPacket drop reasons
19 SepTruthiness in C
13 SepAppImage explosions
5 SepRevamping bpftrace’s CI with Nix
30 Julbpfilter is forever
10 JunKernel string overcopying
27 MaySudo and signal propagation
22 MayThe case for a community maintained BPF book
16 Mayvmtest: Run your tests in virtual machines
20 AprNot so perfect forwarding
4 MarVisualizing below using Grafana
27 FebGenerating kernel patchsets
13 Feb3D modeling with OpenSCAD

2022 3

2021 7

29 NovRewriting clipd
17 OctAhead-Of-Time compiled bpftrace programs
13 OctDWARF stack walks and fast symbolization for BPF
20 MayDebug
20 MarSwitching to Caddy
19 FebC++ patterns: static registration
5 Janlibbpf-rs: eBPF for the Rust ecosystem

2020 12

16 NovUnderstanding btrfs internals part 4
16 NovUnderstanding btrfs internals part 5
27 SepUnderstanding btrfs internals part 3
14 SepUnderstanding btrfs internals part 2
13 SepWaiting on process exit
13 SepOn writing unmaintainable code
13 SepSetting up a barebones website
13 SepUnderstanding btrfs internals
9 JulGDB hacking part 2
5 JulPlaying with C++ templates
5 JulGDB hacking
23 Apr/proc/[pid] and the missing threads

2019 1

20 JunComparing interned strings

2018 1

31 Marstd::vector and emplace_back

2017 4