Book Image

PostgreSQL 10 High Performance - Third Edition

By : Enrico Pirozzi
Book Image

PostgreSQL 10 High Performance - Third Edition

By: Enrico Pirozzi

Overview of this book

PostgreSQL database servers have a common set of problems that they encounter as their usage gets heavier and requirements get more demanding. Peek into the future of your PostgreSQL 10 database's problems today. Know the warning signs to look for and how to avoid the most common issues before they even happen. Surprisingly, most PostgreSQL database applications evolve in the same way—choose the right hardware, tune the operating system and server memory use, optimize queries against the database and CPUs with the right indexes, and monitor every layer, from hardware to queries, using tools from inside and outside PostgreSQL. Also, using monitoring insight, PostgreSQL database applications continuously rework the design and configuration. On reaching the limits of a single server, they break things up; connection pooling, caching, partitioning, replication, and parallel queries can all help handle increasing database workloads. By the end of this book, you will have all the knowledge you need to design, run, and manage your PostgreSQL solution while ensuring high performance and high availability
Table of Contents (18 chapters)

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...