Tag: caching
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Most referenced — #caching
Caching Strategies 2Redis 2App Shell Pattern 2Cache Stampede / Thundering Herd 1Consistent Hashing 1OPcache 1HTTP Caching (ETags, Cache-Control) 1APCu — In-Process User Cache 1
How they use it
crawler 1.1k
crawler_json 81
pre-tracking 1
Tag total1.2k pings
Terms pinged23 / 23
Distinct agents14
Prompt Caching
API feature where a static prompt prefix (system instructions, large context) is cached server-side, dramatically reducing cost and latency on repeated calls that share the prefix.
2mo ago
AI / ML intermediate
MySQL Query Cache (Deprecated)
A server-side cache for SELECT results removed in MySQL 8.0 — it caused severe scalability issues under concurrent writes.
3mo ago
Database intermediate
App Shell Pattern
2
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.
3mo ago
Mobile intermediate
Caching Strategies
PHP 7.0+
Patterns for when and how to store and invalidate cached data — cache-aside, write-through, write-behind, and read-through each make different trade-offs between consistency, complexity, and performance.
3mo ago
Performance intermediate
Consistent Hashing
A hashing technique used in distributed systems where adding or removing a node rebalances only a fraction of keys rather than remapping everything — essential for distributed caches, load balancers, and sharded databases.
3mo ago
Architecture advanced
Redis
PHP 7.0+
An in-memory key-value data store used in PHP applications for caching, session storage, queues, rate limiting, and pub/sub — providing sub-millisecond data access compared to database queries.
3mo ago
Performance beginner
Service Worker
7
A JavaScript file that runs in the background separate from the web page, intercepting network requests to enable offline support, background sync, and push notification delivery.
3mo ago
Mobile intermediate
Cache Warming Strategies
PHP 5.0+
Pre-populating a cache before traffic arrives — preventing the cold-start thundering herd where every request misses a cold cache simultaneously after a deploy.
3mo ago
Performance 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
Asset Versioning & Browser Cache Strategy
1
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
Bloom Filter
PHP 7.0+ A probabilistic data structure that tests set membership in O(1) time and O(1) space, with a tunable false-positive rate and zero false negatives.
3mo ago
Data Structures advanced
Cache Poisoning
PHP 5.0+
An attacker manipulates a cached response so that subsequent users receive malicious content served from the cache.
CWE-346 OWASP A4:2021
3mo ago
Security advanced
8.1
Cache Stampede / Thundering Herd
PHP 5.0+ When a cached item expires, multiple simultaneous requests all miss the cache and hit the database concurrently, overwhelming it.
3mo ago
Performance advanced
CDN (Content Delivery Network)
2
A geographically distributed network of servers that caches and delivers static assets from locations close to end users.
3mo ago
Performance beginner
CDN Edge Caching
PHP 5.0+
1
Content Delivery Networks cache responses at edge nodes close to users — reducing latency and origin load, controlled via Cache-Control headers.
3mo ago
Performance intermediate
HTTP Caching (ETags, Cache-Control)
Standard HTTP headers that instruct browsers and intermediary caches on how long to cache responses and when to revalidate.
3mo ago
Performance intermediate
LRU Cache
A fixed-size cache that evicts the Least Recently Used entry when full, implemented with a hash map and doubly linked list for O(1) get and put.
3mo ago
Data Structures advanced
Memoization
Caching the result of a pure function call keyed by its arguments so repeated calls with the same inputs return immediately.
3mo ago
Performance intermediate
Opcode Caching
PHP 5.5+
3
Storing precompiled PHP bytecode in memory to skip the parse-and-compile phase on subsequent requests.
3mo ago
Performance intermediate
PSR-6: Caching Interface
PHP 5.5+
Standard CacheItemPoolInterface and CacheItemInterface for framework-agnostic cache integration — decouple code from specific cache backends.
3mo ago
Style intermediate