10 articles tagged Performance.
LCP, INP and CLS explained with their thresholds, the specific causes of each, and how to tell lab data from the field data Google actually ranks on.
The TweakPad Team
Why streams exist, the four types, and how pipeline() fixes the error handling and back-pressure bugs that pipe() leaves you with.
The TweakPad Team
Compound index ordering, the ESR rule, covered queries, and how to read explain() output to confirm an index is actually being used.
The TweakPad Team
How to diagnose a slow query with EXPLAIN ANALYZE, the index rules that matter, and the eight query patterns that defeat indexes.
The TweakPad Team
How next/image prevents layout shift, what sizes and priority actually do, and the configuration mistakes that make images slower rather than faster.
The TweakPad Team
The Request Memoization, Data Cache, Full Route Cache and Router Cache — what each one caches, how long for, and how to opt out correctly.
The TweakPad Team
A diagnosis-first guide to React performance — how to find the real bottleneck with the Profiler, and the five fixes that account for most real-world wins.
The TweakPad Team
Memoisation in React has a real price. Here is how to tell which of the three legitimate cases you are in, and why most useMemo calls are net negative.
The TweakPad Team
How the event loop actually schedules work, why promises always run before setTimeout, and how to stop long tasks from freezing your page.
The TweakPad Team
How async/await really works, the sequential-await mistake that makes code 10x slower, and how to handle errors and parallel work correctly.
The TweakPad Team