Engineering Publications
Technical Insights & Architecture Papers
Deep-dives on high-throughput backend architecture, Python & Django performance, real-time Voice AI, and resilient database modeling.
Linux Kernel Dirty Page Writeback & I/O Stalls: Tuning vm.dirty_ratio for Heavy PostgreSQL WAL and Logging Workloads
When Linux page caches fill up during heavy write spikes, synchronous flush stalls freeze database transactions. Understand kernel pdflush/flusher threads, dirty_ratio, dirty_background_ratio, and NVMe tuning.
Zero-Downtime TLS Certificate Hot-Reloading & OCSP Stapling in Nginx: Hardening Cloudflare Origin Infrastructure
Rotating TLS certificates in production often results in severed WebSockets, dropped HTTP/2 connections, and SSL handshake spikes. Master zero-downtime worker handoffs, memory-cached OCSP stapling, and Cloudflare origin certificate automation.