Showing posts with the label Performance Tuning

Profiling Node.js Memory Leaks: Deep Dive into V8 Heap Analysis

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TL;DR: Identify memory leaks by comparing multiple heap snapshots using Chrome DevTools or the v8 module; focus on "Retained Size" to find the root cause of ERR_WORKER_OUT_OF_MEMORY in…
Profiling Node.js Memory Leaks: Deep Dive into V8 Heap Analysis

Tuning Go Garbage Collection Latency with GOGC and GOMEMLIMIT

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High tail latency and CPU spikes are common enemies of high-performance Go applications. Often, the culprit is the Go garbage collector (GC) running too frequently, stealing CPU cycles from your bu…
Tuning Go Garbage Collection Latency with GOGC and GOMEMLIMIT

Node.js Event Loop: Debugging Blocks with CPU Profiling

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Your Node.js application is struggling. You notice that while CPU usage is high, the actual throughput of the server has cratered. Requests that should take milliseconds are suddenly timing out aft…
Node.js Event Loop: Debugging Blocks with CPU Profiling
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