Technical Insights & Architecture Papers
Deep-dives on high-throughput backend architecture, Python & Django performance, real-time Voice AI, and resilient database modeling.
TCP BBRv3 Congestion Control in Production: Slashing Tail Latency & Bufferbloat for Real-Time LLM Token & Audio Streams
Discover how switching Linux kernel congestion control from Cubic to BBRv3 eliminates bufferbloat and slashes p99 tail latency across WebSockets, WebRTC media, and streaming LLM token delivery.
Zero-Copy In-Memory Serialization: FlatBuffers and Cap'n Proto vs. Protocol Buffers in High-Throughput Microservices
Protocol Buffers require costly object decoding and memory allocations during serialization. Discover zero-copy serialization engines that access structured binary payloads directly in memory buffers.
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.
Linux io_uring vs. Epoll: Achieving True Asynchronous Storage and Network I/O in Modern Backend Systems
While epoll revolutionized network concurrency, it fundamentally fails on disk storage and incurs heavy syscall context-switch overhead. Explore how Linux's io_uring ring-buffer architecture achieves zero-syscall asynchronous I/O.
Dynamic Edge Invalidation with Cloudflare Cache Tags: Implementing Sub-Millisecond Global Caching for Django Backends
Full-page CDN caching provides sub-10ms global latency, but URL purging is either too blunt or too slow. Learn how to tag HTTP responses and trigger instantaneous surgical cache purges with Cloudflare Cache-Tags.
Linux cgroups v2 & Memory Pressure Stalling: Diagnosing Kernel Thrashing and Sizing Container Limits in Production
Containers frequently suffer debilitating tail-latency spikes long before triggering OOM kills because the Linux kernel thrashes page cache allocations under pressure. Learn to interpret /proc/pressure/memory and configure memory.high in cgroups v2.