Arrays vs Linked Lists: Understanding the Trade-offs
Compare arrays and linked lists in terms of access time, insertion/deletion efficiency, memory usage, and cache performance.
Posts tagged with #performance
Cache Stampede Prevention: Protecting Your Cache
Learn how single-flight, request coalescing, and probabilistic early expiration prevent cache stampedes that can overwhelm your database.
Database Capacity Planning: A Practical Guide
Plan for growth before you hit walls. This guide covers growth forecasting, compute and storage sizing, IOPS requirements, and cloud vs on-prem decisions.
Connection Pooling: HikariCP, pgBouncer, and ProxySQL
Learn connection pool sizing, HikariCP, pgBouncer, and ProxySQL, timeout settings, idle management, and when pooling helps or hurts performance.
Database Monitoring: Metrics, Tools, and Alerting
Keep your PostgreSQL database healthy with comprehensive monitoring. This guide covers query latency, connection usage, disk I/O, cache hit ratios, and alerting with pg_stat_statements and Prometheus.
Denormalization
When to intentionally duplicate data for read performance. Tradeoffs with normalization, update anomalies, and application-level denormalization strategies.
Index Design Clinic: Composite Indexes, Covering Indexes, and Partial Indexes
Master composite index column ordering, covering indexes for query optimization, partial indexes for partitioned data, expression indexes, and selectivity.
Database Indexes: B-Tree, Hash, Covering, and Beyond
A practical guide to database indexes. Learn when to use B-tree, hash, composite, and partial indexes, understand index maintenance overhead, and avoid common performance traps.
PostgreSQL Locking and Concurrency Control
Learn about shared vs exclusive locks, lock escalation, deadlocks, optimistic vs pessimistic concurrency control, and FOR UPDATE clauses.
Query Execution Plans: Reading EXPLAIN Output Like a Pro
Learn to decode PostgreSQL EXPLAIN output, understand sequential vs index scans, optimize join orders, and compare bitmap heap scans with index-only scans.