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HomePostgreSQL Performance

PostgreSQL Performance

Redis 8.8 cache tier cutting time to result for distributed PostgreSQL query performance in SaaS platforms - hourglass on calendar symbolizing query latency and TTL-based caching
Database Performance

How Redis 8.8 Improves Distributed PostgreSQL Query Performance in SaaS Platforms

Redis 8.8 improves distributed PostgreSQL query performance in SaaS platforms: kvobj memory savings, INCREX rate limiting, hot-key telemetry and a measured cache-aside design.
[...]
PostgreSQL

PostgreSQL 18 Performance Internals: Optimizer and Indexing Advancements

PostgreSQL 18 performance internals deep dive: async I/O, B-tree skip scan, self-join elimination and planner rewrites — verified with real EXPLAIN output on 18.4.
[...]
PostgreSQL Support diagram of the query lifecycle from parse to execute with planner inputs, pg_stat_statements instrumentation and a wait event triage table
MinervaDB

Optimizing SQLs in PostgreSQL 18.4: 12 Proven Techniques for Peak Performance

A practical field manual for optimizing SQLs in PostgreSQL 18.4: EXPLAIN with buffers, B-tree skip scans, asynchronous I/O, statistics, join tuning, six animated diagrams and seven premium diagnostic scripts.
[...]
PostgreSQL Replication Lag
PostgreSQL

Troubleshooting PostgreSQL Streaming Replication Lag in Production

PostgreSQL replication lag troubleshooting: measure send, flush and replay lag via pg_stat_replication, isolate the bottleneck stage, and fix it.
[...]
PostgreSQL Index Bloat
Indexing

Detecting and Fixing PostgreSQL Index Bloat with REINDEX CONCURRENTLY

PostgreSQL index bloat: measure it with pgstattuple, understand why B-trees inflate, and rebuild online with REINDEX CONCURRENTLY without downtime.
[...]
PostgreSQL lock contention featured image for the MinervaDB pg_locks deep dive, showing a three-step blocking chain
Database Performance

Resolving PostgreSQL Lock Contention: A pg_locks Deep Dive

PostgreSQL lock contention resolved: read pg_locks correctly, trace blocking chains, fix deadlocks, and design DDL that never queues production.
[...]
PostgreSQL Wait Events
Monitoring

PostgreSQL Wait Event Analysis: Finding Bottlenecks with pg_stat_activity

PostgreSQL wait events explained: sample pg_stat_activity, interpret Lock, LWLock, IO and Client waits, and turn wait profiles into targeted fixes.
[...]
PostgreSQL Autovacuum Tuning
PostgreSQL

Diagnosing Autovacuum Lag and Table Bloat in PostgreSQL Production Systems

PostgreSQL autovacuum tuning for production: diagnose autovacuum lag, measure table bloat, fix per-table thresholds, and prevent wraparound risk.
[...]
PgBouncer performance tuning
Database Performance Tuning

PgBouncer Pool Saturation: Diagnosing Connection Bottlenecks in PostgreSQL

PgBouncer performance tuning for PostgreSQL: diagnose pool saturation with SHOW POOLS, read cl_waiting correctly, size pools, and fix bottlenecks.
[...]
PostgreSQL Slow Query Troubleshooting
PostgreSQL

Troubleshooting Slow PostgreSQL Queries with EXPLAIN ANALYZE and pg_stat_statements

PostgreSQL slow query troubleshooting with EXPLAIN ANALYZE and pg_stat_statements: find, diagnose, and fix slow queries in production, step by step.
[...]

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Table of Contents

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  • PostgreSQL Slow Query Troubleshooting at a Glance
  • Step 1: Identify the Real Offenders with pg_stat_statements
  • Step 2: Capture the Slow Plan with EXPLAIN (ANALYZE, BUFFERS)
  • Step 3: Distinguish Plan Problems from Wait Problems
  • Step 4: Apply the Fix — Staged and Reversible
  • Step 5: Verify with the Same Instrumentation
  • Reading BUFFERS Like a Storage Engineer
  • When Slow Queries Are a Symptom, Not the Disease
  • Catching Intermittent Slowness: auto_explain in Production
  • Plan Cache Pathologies: Generic Plans and plan_cache_mode
  • Join Order, CTE Materialization, and the Limits of Hints
  • Parallel Query: When the Planner Won’t, and When It Shouldn’t
  • PostgreSQL Slow Query Troubleshooting Quick Reference
  • PostgreSQL Slow Query Troubleshooting FAQ
  • PostgreSQL Slow Query Troubleshooting Checklist
  • Wrapping Up: A Repeatable PostgreSQL Slow Query Troubleshooting Method
  • Further Reading on PostgreSQL Slow Query Troubleshooting
  • Get Expert PostgreSQL Performance Help
→ Index