Tag: performance
AI Model Quantization
Compressing neural network weights and activations to lower-precision formats (int8, int4, fp8) to shrink memory and accelerate inference.
3w ago
ai_ml advanced
APM — Application Performance Monitoring
PHP 7.0+
APM tools (Datadog, New Relic, Blackfire) automatically instrument applications to profile code-level performance — identifying slow DB queries, N+1 problems, and method-level bottlenecks.
2mo ago
observability intermediate
App Shell Pattern
3
A PWA architecture that separates the minimal UI skeleton (shell) from dynamic content — the shell is cached by the service worker and loads instantly, while content is fetched fresh on each visit.
2mo ago
mobile intermediate
array_column() — Plucking Values from Arrays
PHP 5.5+
array_column() extracts a single column from a multi-dimensional array or array of objects — the idiomatic PHP replacement for foreach loops that build lookup arrays, and for creating ID-indexed maps.
2mo ago
php beginner
Ahead-of-Time vs Just-in-Time Compilation
1
AOT compiles all code before execution (C, Go, Rust — fast startup, predictable performance). JIT compiles hot paths at runtime (PHP 8+, JVM — adapts to actual usage patterns).
3mo ago
compiler intermediate
AI API Cost Management
1
Strategies to reduce LLM API costs — caching identical prompts, batching requests, choosing smaller models for simpler tasks, and minimising context length.
3mo ago
ai_ml intermediate
Amortized Analysis
Averaging the cost of an operation over a sequence — explaining why dynamic array append is O(1) amortised despite occasional O(n) resizes.
3mo ago
algorithms advanced
APM Tools
PHP 5.0+
Application Performance Monitoring tools — Datadog, New Relic, Elastic APM — provide distributed tracing, performance profiling, error tracking, and anomaly detection in production.
3mo ago
observability intermediate
App Shell Architecture
PHP 7.0+
1
Caching the minimal HTML, CSS, and JS needed to display the UI skeleton on first load — so the shell renders instantly from cache while dynamic content loads from the network.
3mo ago
mobile intermediate
APCu — In-Process User Cache
PHP 5.4+ APCu stores PHP values in shared memory within the PHP-FPM pool — the fastest possible cache with no network hop overhead.
3mo ago
performance intermediate
API Pagination Patterns
Strategies for returning large collections in manageable chunks — offset/page-based, cursor/keyset, and hybrid approaches each suit different use cases.
3mo ago
api_design intermediate
API Rate Limiting
Controlling how many requests a client can make in a time window — protecting against abuse, ensuring fair usage, and preventing accidental DoS from misbehaving clients.
3mo ago
api_design intermediate
Asset Versioning & Browser Cache Strategy
Serving static assets with immutable long-lived cache headers plus content-hash filenames — maximising cache hits while guaranteeing instant cache-busting on change.
3mo ago
performance beginner
Async Processing / Job Queues
PHP 5.0+
1
Deferring time-consuming work (emails, image processing, third-party API calls) to background workers via a queue, improving response times.
3mo ago
performance intermediate
Asynchronous vs Parallel Execution
PHP 7.0+ Async enables concurrency within a single thread by interleaving tasks during I/O waits; parallel execution uses multiple threads/processes for true simultaneous CPU execution.
3mo ago
concurrency intermediate
Auto Scaling
PHP 5.0+
1
Automatically adding or removing compute instances based on load metrics — ensuring capacity matches demand without over-provisioning or under-provisioning.
3mo ago
cloud intermediate
Autocomplete & Typeahead
PHP 5.0+
1
Showing relevant suggestions as the user types — requiring fast prefix search, debouncing, and careful UX to be helpful rather than distracting.
3mo ago
search intermediate