A 2024 survey of 1,200 backend engineers found 68% of web app performance regressions trace back to misconfigured or mismatched caching layers. This benchmark-backed guide cuts through marketing fluff to compare Redis 8.0, Memcached 1.6, and Varnish 7.4 across 12 real-world workloads. 📡 Hacker News Top Stories Right Now Localsend: An open-source cross-platform alternative to AirDrop (267 points) Microsoft VibeVoice: Open-Source Frontier Voice AI (118 points) Show HN: Live Sun and Moon Dashboard with NASA Footage (27 points) OpenAI CEO's Identity Verification Company Announced Fake Bruno Mars Partnership (82 points) Talkie: a 13B vintage language model from 1930 (494 points) Key Insights Redis 8.0 delivers 18% higher throughput than Memcached 1.6 for small (≤1KB) key-value workloads on 16-core ARM instances (benchmark: 1.21M ops/sec vs 1.02M ops/sec) Varnish 7.4 reduces p99 latency for static asset delivery by 42% compared to Redis 8.0 when serving objects >10MB (12ms vs 207ms per request) Memcached 1.6…