At DNS scale, a wasted byte becomes hundreds of gigabytes. This article follows five Rust data-layout changes that made Cloudflare’s 1.1.1.1 cache smaller and faster, from frozen slices and compact offsets to contiguous wire-format records.
Most trig APIs take radians, so code often multiplies by TAU (2π) just to call sin() and cos(). Representing angles in turns (1 = a full circle) keeps units consistent, reduces pointless conversions, and can improve floating-point exactness for common angles like quarter-turns.
LLM inference no longer looks like “CPU submits, GPU generates.” As assistants become agentic, tool calls and orchestration move onto the critical path, making CPU-heavy serving practical. This post breaks down prefill/decode, KV cache, and the software techniques (continuous batching, prefix caching, chunked prefill) that make CPU inference viable.
Shitty is a terminal emulator built for low latency and high throughput, keeping terminal state on the CPU while rendering cells with GPU compute backends (Vulkan/Metal). It also warns that it’s memory-unsafe, making testing and sanitizer-based verification central to its design.
A reported ripgrep crash affects x86_64 MUSL builds during massive directory walks. The SIGSEGV comes from musl mallocng integrity checks triggered via calloc→opendir while Rust threads iterate directories. The takeaway: allocator invariants can fail under extreme size + concurrency, and the stack trace points straight at that boundary.
PostgreSQL’s internals come into focus when you follow the journey: TCP connects to a postmaster, each session gets a backend, pages live in a shared buffer pool, changes are protected by WAL, and checkpointers flush dirty pages while standbys replay WAL for recovery.