Latency

Network topology with redundant request paths illustrating hedged request architecture

Architecting Hedged Requests for Resilient Low-Latency Distributed Systems

Hedged requests combat tail latency by issuing duplicate RPC calls when initial requests stall. This post explores the architecture, trade-offs, and production patterns behind this critical technique for resilient low-latency systems.

Redis Cluster architecture diagram showing memory distribution across shards

Optimizing Redis Cluster Eviction: Predictable Latency Under Memory Pressure

Redis Cluster eviction under memory pressure is a common source of unpredictable latency spikes. This post breaks down the eviction mechanics, identifies the failure modes, and provides concrete strategies to keep p99 latency stable.

Diagram of a distributed RAG architecture with vector store, message bus, and LLM inference nodes.

Architecting Production Retrieval-Augmented Generation: Scalability, Latency, and Resilient Data Pipeline Patterns

Learn concrete patterns for scaling vector stores, LLM inference, and data pipelines, with real‑world examples using Kafka, Milvus, and OpenAI APIs.

A graph showing a long tail of latency distribution.

Deep Dive into Tail Latency: Avoiding the Little's Law Trap in High-Throughput Systems

A practical guide for engineers to recognize and mitigate tail‑latency pitfalls that break Little’s Law assumptions, using concrete Kafka and GCP examples.

Graph of latency distribution with a long tail.

Deep Dive into Tail Latency: Avoiding the Little's Law Trap in High-Throughput Systems

A practical guide for engineers to recognize the limits of Little’s Law, measure tail latency, and apply proven techniques in high‑throughput services.