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)

pgbench custom tests

While the built-in tests are interesting, you can use pgbench instead as a testing harness to run your own database tests. This gets you multiple clients running at once, executing concurrent queries with a minimum of scripting.

Insert speed test

To give an idea how this might be useful, imagine you want to test how fast your system can write data to disk using insert. You might copy the filler concept from the built-in tables, where you just want to create some strings with a particular length, and therefore size in bytes, without caring about the content (this is included in pgbench-tools as init/insertsize.sql):

create table data(filler text); 

But then create a custom script that actually fills that...