Using PEM to understand and improve performance in Postgres: Postgres Tuning Wizard and Performance Diagnostics
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The document discusses using Performance Enterprise Manager (PEM) to enhance PostgreSQL performance through monitoring and tuning tools. It covers the architecture of PEM, various metrics for performance monitoring, and techniques for database tuning including the tuning wizard and performance diagnostics. Additionally, it showcases EDB's leadership and innovations in the PostgreSQL community over the years.
Using PEM to understand and improve performance in Postgres: Postgres Tuning Wizard and Performance Diagnostics
- 1. Using PEM to understand and improve performance in Postgres: Postgres Tuning Wizard and Performance Diagnostics Ashesh Vashi
- 2. This session is being recorded. The slides and recording will be available after the session. Please submit questions via the question box– all questions will be answered after the presentation. We will be sharing information about EDB and Postgres later Welcome – Housekeeping Items
- 3. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.3 • Introduction to PEM • Performance Monitoring • Database Tuning • Tuning Wizard • Performance Diagnostics • EDB Wait States • Demo Agenda
- 4. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.4 Introduction to PEM
- 5. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.5 What can PEM do?
- 6. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.6 PEM Architecture
- 7. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.7 Market Landscape
- 8. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.8 Performance Monitoring Monitoring Target Probes Metrics Type of monitored data Host/Operating System 10 47 CPU Usage, Disk Busy Info, Disk Space, IO Analysis, Load Average, Memory Usage, Network Statistics, OS Information, OS Statistics, Server Auto Discovery Database Server/Instance 27 196 Background Writer Statistics, Blocked Session Information, Data and Log File Analysis, Database Frozen XID, Database Size, Database Statistics, EDB Audit Configuration, Failover Manager Cluster Info, Failover Manager Node Status, Lock Information, Number of Prepared Transactions, Number of WAL Files, Database, Tablespace, PG HBA Conf, Server Information, Server log Configuration, Session Information, Session Waits, Settings, Streaming Replication, Streaming Replication Database Conflicts, Streaming Replication Lag Time, System Waits, Tablespace Size, User Information, WAL Archive Status Database 15 90 Function Statistics, Index Size, Index Statistics, Materialized View Bloat, Materialized View Frozen XID, Materialized View Size, Object Catalog: Extension, Object Catalog: Schema, Slony Replication, SQL/Protect, Table Bloat, Table Frozen XID, Table Size, Table Statistics, xDB Replication Schema 6 26 Foreign Key, Function, Index, Sequence, Table, View
- 9. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.9 Instance Tuning • Tuning Wizard • Postgres Expert • Capacity Manager (Capacity Planning) Database Tuning Workload/Schema Tuning • Postgres Expert • Explain plan analyzer (in the query tool) • SQL Profiler • Performance Diagnostics (Wait Events)
- 10. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.10 • Reviews the database server installation, and recommends a set of configuration options that will help tune the installation best suited for your workload • Machine Utilization + Dedicated, Work station, Developer workstation • Workload + OLTP, Mixed, Data warehouse • effective_cache_size, maintainance_work_mem, max_wal_size, min_wal_size, random_page_cost, shared_buffers, wal_buffers, work_mem Tuning Wizard
- 11. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.11 • An active session can be utilizing a CPU or waiting for an internal event/action to happen • Wait Events (EDB Wait States) • pg_stat_activity view - wait_event_type, wait_event Performance Diagnostics • LWLock • Lock • BufferPin • Activity • Extension • Client • IPC • Timeout • IO
- 12. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.12 ● EDB Wait States Background Worker (EWSBW) ○ EDB Postgres Advanced Server 11+ ○ Probes each of the running sessions at regular intervals ○ Collection information for every sessions ■ Database, User, Query, Wait Events ● Wait States Interface ○ edb_wait_states_data ○ edb_wait_states_queries ○ edb_wait_states_sessions ○ edb_wait_states_samples EDB Wait States
- 13. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.13 DEMO
- 14. Why EDB?
- 15. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.15 Products, services, and support for teams who need to do more and go faster • Founded in 2004 • 350+ employees • 16 Offices worldwide EDB supercharges PostgreSQL
- 16. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.16 • Enterprise PostgreSQL innovations • 4,000+ global customers • Recognized by Gartner Magic Quadrant for 7 years in a row • PostgreSQL community leadership 2019 Challengers Leaders Niche Players Visionaries Abilitytoexecute Completeness of vision 1986 The Design of PostgreSQL 1996 Birth of PostgreSQL 2004 EDB is founded 2020 TodayMaterialized Views Parallel Query JIT Compilation Heap Only Tuples (HOT) Serializable Parallel Query We’re database fanatics who care deeply about PostgreSQL Expertise
- 17. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.17 Market Success Globally
- 18. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.18 Core team Major contributors Contributors EDB Open Source Leadership Named EDB open source committers and contributors Akshay Joshi Amul Sul Ashesh Vashi Ashutosh Sharma Jeevan Chalke Dilip Kumar Jeevan Ladhe Rushabh Lathia Devrim Gündüz Robert Haas Bruce Momjian Dave Page Designates PostgreSQL committers
- 19. Questions?
- 20. © Copyright EnterpriseDB Corporation, 2020. All rights reserved.20 Contact EDB in APJ Other resources Thank You Australia & New Zealand: E: [email protected] S E Asia & Hong Kong: E: [email protected] Japan: E:[email protected] S Korea: E: [email protected] India, Sri Lanka & Bangladesh: E: [email protected] Postgres Pulse EDB Youtube Channel
- 21. Thank You EDB supercharges Postgres to help our customers overcome these challenges.