Tag
#caching
3 articles tagged caching.
HLDintermediate
Stack Overflow HLD: Search Is the System, and It Isn't a SQL LIKE
A Stack Overflow system design: full-text search via an inverted index ranked by TF-IDF and votes, a read-heavy cache/CDN path, the Q&A data model, and keeping search in sync with the source of truth.
21 min read
HLDintermediate
Cricinfo Live Score HLD: Serving One Hot Score to Millions of Readers
A live cricket score system design (Cricinfo-style): read fan-out to tens of millions, collapsing a hot key with caching and single-flight, push vs poll delivery, and freshness over consistency.
23 min read
LLDadvancedPremium
Designing a Thread-Safe LRU Cache
A low-level design walkthrough of an O(1) LRU cache — a hash map plus a doubly linked list — how eviction works, the locking story, and the full browsable implementation.
7 min read