When Your Performance Dashboard Lies: RUM Pitfalls to Avoid
·11 min read
A practical deep dive into RUM sampling bias, percentile traps, and why your numbers may disagree with CrUX.
Web PerformanceRUMCore Web Vitals
Blog
Notes, experiments, and long-form thoughts.
I write about software engineering and other topics I find worth sharing.
JavaScript Event Loop: A Practical Deep Dive
·8 min read
A grounded walkthrough of call stack, microtasks, macrotasks, and the rendering cycle with examples you can run.
JavaScriptRuntimePerformance