MySQL Tutorials - Herong's Tutorial Examples

∟Performance Tuning and Optimization

This chapter provides tutorial notes on MySQL performance tuning and optimization. Topics include comparing INSERT statement execution time between CentOS 8 and macOS 10 computers; query profiling, performance impact of binary logging and InnoDB log buffer.

Performance of Inserting Integers to MySQL Database

"SHOW PROFILE" - Query Profiling

Impact of Binary Logging on INSERT

Impact of InnoDB Log Buffer on INSERT

Performance Comparison of Inserting Integers vs. Strings

Takeaways:

• MySQL server is 100 times slower on my CentOS computer than my macOS computer with default settings.
• Query profiling is a performance tuning tool provided by MySQL server that allows you to see resource usage profiles of a given query.
• Setting sql_log_bin=0 can reduce execution time of INSERT and other data change statements by 50%, if you are not doing any database replication and have frequent backups.
• Setting innodb_flush_log_at_trx_commit=0 can reduce execution time reduction on INSERT and other data change statements from 35 ms to 1 ms.
• Inserting short strings takes about the same time as inserting integers.

Table of Contents

 About This Book

 Introduction of SQL

 MySQL Introduction and Installation

 Introduction of MySQL Programs

 PHP Programs and MySQL Server

 Perl Programs and MySQL Servers

 Java Programs and MySQL Servers

 Datatypes and Data Literals

 Operations and Expressions

 Character Strings and Bit Strings

 Commonly Used Functions

 Table Column Types for Different Types of Values

 Using DDL to Create Tables and Indexes

 Using DML to Insert, Update and Delete Records

 Using SELECT to Query Database

 Window Functions for Statistical Analysis

 Use Index for Better Performance

 Transaction Management and Isolation Levels

 Locks Used in MySQL

 Defining and Calling Stored Procedures

 Variables, Loops and Cursors Used in Stored Procedures

 System, User-Defined and Stored Procedure Variables

 MySQL Server Administration

 Storage Engines in MySQL Server

 InnoDB Storage Engine - Primary and Secondary Indexes

►Performance Tuning and Optimization

 Bulk Changes on Large Tables

 MySQL Server on macOS

 Installing MySQL Server on Linux

 Connection, Performance and Second Instance on Linux

 Archived Tutorials

 References

 Full Version in PDF/EPUB

Performance Tuning and Optimization - Updated in 2023, by Herong Yang