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PostgreSQL 10 High Performance

You're reading from   PostgreSQL 10 High Performance Expert techniques for query optimization, high availability, and efficient database maintenance

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Product type Paperback
Published in Apr 2018
Publisher Packt
ISBN-13 9781788474481
Length 508 pages
Edition 3rd Edition
Languages
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Author (1):
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Enrico Pirozzi Enrico Pirozzi
Author Profile Icon Enrico Pirozzi
Enrico Pirozzi
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Table of Contents (18) Chapters Close

Preface 1. PostgreSQL Versions FREE CHAPTER 2. Database Hardware 3. Database Hardware Benchmarking 4. Disk Setup 5. Memory for Database Caching 6. Server Configuration Tuning 7. Routine Maintenance 8. Database Benchmarking 9. Database Indexing 10. Query Optimization 11. Database Activity and Statistics 12. Monitoring and Trending 13. Pooling and Caching 14. Scaling with Replication 15. Partitioning Data 16. Avoiding Common Problems 17. Other Books You May Enjoy

CPU and memory benchmarking

The first thing worth testing on a new system is the speed of its memory, because if this is slow, both the CPU and disks will suffer accordingly. You might wonder why this is so important. It's because database work is intensive in both these areas. PostgreSQL works with database data in 8 KB pages, and it's constantly shuffling those around to system memory as needed to satisfy queries; looking through those pages for the specific rows needed is CPU-intensive. Even on benchmarks that focus on disk-heavy work, the speed of the underlying memory can have a surprisingly high impact on results.

Memtest86+

One of the most valuable tools in the PC hardware technician's bag is Memtest86...

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