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PokéBonk

Looking for a quick way to try PokéBonk? This browser-based 3D roguelite fan game combines movement, positioning, and upgrade choices in short runs. The independent PokéBonk play portal lets visitors start the game and offers a concise beginner guide to desktop controls and early-run basics. The guide is based on a version-specific review, so check the game for changes. The game is served by its…

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Why Your Postgres Table Keeps Growing Even Though You're Deleting Rows

A while back I noticed something odd. A table with a modest number of rows was taking far more disk space than it should. SELECT count(*) said one thing, pg_relation_size said another.

  • PostgreSQL uses MVCC, keeping old row versions called dead tuples
  • VACUUM marks space reusable, doesn't shrink file on disk
  • VACUUM FULL rewrites table, locks it, or use pgrepack

InfiniBand Architecture First Principles: Physical Link Rates, Credit-Based Link Flow Control, and Subnet Manager Fabric Orchestration

Introduction: The Dedicated Arteries of Supercomputing — Native InfiniBand In Chapter 9 of our series, RDMA High-Performance Networking Foundations: Kernel Bypass, Zero-Copy, Queue Pairs, and Lossless…

  • InfiniBand designed for high-performance computing and AI, unlike Ethernet retrofitting RDMA
  • Physical link speeds from SDR 2.5 Gbps to XDR 800 Gbps, 1600 Gbps aggregate throughput
  • Credit-based hardware flow control prevents packet drops, eliminates deadlock hazards

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