Deep dives into tech & cloud

Articles on AWS, distributed systems, programming languages, and the tools engineers use every day. Written by Aliaksei Kankou.

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January 14, 2024 · 8 min read

Resolve the Kubernetes Cold Start Problem on AWS EKS Using a Warm Pool

A cold start delay occurs when new Kubernetes nodes take too long to become operational. AWS Warm Pool pre-warms EC2 instances in a stopped or hibernated state, enabling rapid cluster scaling with near-zero initialization delay.

Kubernetes AWS EKS Warm Pool

July 10, 2024 · 6 min read

Is Java Really a Compiled Language?

Is Java compiled or interpreted? Java compiles source code to bytecode via javac, then the JVM interprets it and applies tiered JIT compilation — C1 and C2 — to progressively optimize hot code into native machine code.

Java JVM JIT Bytecode

July 10, 2024 · 6 min read

Is JavaScript Really Interpreted or Compiled?

Is JavaScript really interpreted or compiled? JavaScript is neither purely interpreted nor compiled. Modern V8 uses a four-tier pipeline — Ignition Interpreter, Sparkplug, Maglev, and TurboFan — to dynamically decide how to execute your code.

JavaScript V8 JIT