systems on Sparse Notes https://sparsenotes.com/tags/systems/ Recent content in systems on Sparse Notes https://sparsenotes.com/images/og-default.png https://sparsenotes.com/images/og-default.png Hugo -- gohugo.io Sat, 23 May 2026 00:00:00 +0000 Bjarne Stroustrup on C++: Bell Labs, Negative-Overhead Abstraction, and the Mistakes He'd Undo https://sparsenotes.com/posts/2026/05/stroustrup-creator-of-cpp/ Sat, 23 May 2026 00:00:00 +0000 https://sparsenotes.com/posts/2026/05/stroustrup-creator-of-cpp/ Notes from a two-hour interview with the creator of C++ — what Bell Labs was actually like, why he insists abstraction can have negative overhead, the politics of memory-safety profiles, and the mistakes he wishes he'd fought harder against. Inside Jane Street's GP300 Training Data Center https://sparsenotes.com/posts/2026/05/jane-street-ai-datacenter/ Sat, 23 May 2026 00:00:00 +0000 https://sparsenotes.com/posts/2026/05/jane-street-ai-datacenter/ Notes on Dwarkesh Patel's tour of Jane Street's Texas training cluster with Ron Minsky and Daniel Pontecorvo — 140 kW liquid-cooled GB300 racks, retrofit chillers, leak ropes, bus-bar power balancing, 8,000 km of fiber, and why opportunity cost dominates.