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MySQL Optimization Center

Everything you need to monitor, tune, and optimize MySQL databases for top performance.

Monitoring MySQL Performance

Effective MySQL performance monitoring is essential for identifying slow queries, system bottlenecks, and inefficient configurations. This section covers metrics, built-in tools like performance_schema, and external tools like Releem, PMM, and cloud-native monitors such as RDS Performance Insights.


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Breaking Down MySQL Latency – What It Is and Why It Matters
Navigating the intricacies of database performance can be challenging, but understanding key metrics like latency is crucial. As businesses increasingly rely on data-driven insights, ensuring that databases respond swiftly and efficiently becomes paramount.
Keeping an Eye on MySQL with Health Checks
The article for engineers on how to Keep an Eye on MySQL with Health Checks
MySQL Throughput
MySQL Throughput, quantified as Queries per Second (QPS), is a performance metric that plays an important role when monitoring and tuning your MySQL databases. It measures the volume of queries your database can handle within a second.
MySQL Slow Queries
Slow queries are defined as database requests that exceed a certain execution time threshold. This threshold is a parameter that can be adjusted and set by database administrators or developers to align with their unique performance benchmarks.
MySQL Aborted_Clients
The term "aborted clients" for MySQL describes instances where connections are prematurely terminated due to the client failing to close the connection correctly. This issue can stem from a variety of sources, including network disruptions, timeouts on the client's end, or complications arising from the server itself.
MySQL Performance Metrics
Monitoring MySQL performance metrics and managing your database doesn't need to be difficult. Yes, you heard that right. With the proper monitoring strategies and tools at your disposal, you can finally take a backseat.
MySQL CPU Usage - How to Check, Diagnosing and Mitigate
Discover how to diagnose and reduce MySQL CPU usage with practical tips and tools. This guide covers the essentials for monitoring CPU performance, identifying common causes of high usage, and implementing effective strategies to optimize MySQL efficiency.
Top 10 MySQL Monitoring Tools
Choosing the right MySQL monitoring tool can make a world of difference toward improving your database’s condition and efficiency. You want a tool that offers features to help you keep your database fast, secure, and reliable. In this article, we present 10 of the best MySQL monitoring tools for you to consider.

MySQL Configuration Tuning

Configuration tuning is one of the most effective ways to improve MySQL performance, reduce latency, and scale workloads. The right settings depend on your hardware, traffic, storage engine, and query patterns. This section covers best practices for tuning configuration variables, how to safely apply changes in production, tools like Releem that automate tuning, and platform-specific considerations (such as AWS RDS parameter groups).


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MySQL 5.7 Performance Benchmark
In this article, we benchmark the performance of MySQL 5.7 default configuration against the configuration recommended by Releem.
MySQL Performance Parameters
Complete list of MySQL Performance Parameters that Releem optimizes
MySQL Memory Calculator | Releem
Use the MySQL Memory Calculator to accurately estimate maximum memory usage for your MySQL server. Get real-time results, visual memory distribution, and optimization tips. Perfect for DBAs and developers to enhance database performance.
MySQL 8 Performance Benchmark
Research on how MySQL tuning positively affects the performance of popular open-source web applications
How do you keep high-performance MySQL configuration?
We conducted a survey of several hundreds software engineers who have experience in manage servers with installed MySQL / MariaDB / Percona
MySQL Server Status Variables
MySQL Server Status Variables description
MySQL Configuration
At the core of every MySQL database server lies its configuration file, either named my.cnf or my.ini, based on your operating system. This isn't just any file – it's the blueprint that dictates your server's behavior, from how fast it processes queries to how securely it locks away data.
How MySQL Configuration Impacts the Performance of Web Applications
Research on how MySQL tuning positively affects the performance of popular open-source web applications: Drupal, Laravel, WordPress
MySQL Query Cache
The Query Cache is a feature in MySQL designed to boost database performance by caching the results of SELECT queries. When a query that's been executed before is run again, MySQL can quickly pull the result from this cache instead of re-executing it against the database. This not only speeds up data retrieval but also reduces the load on the database, making it highly efficient for frequently run queries with consistent parameters.
Top 5 MySQL Memory Calculators
Dealing with MySQL memory allocation can be tricky, and that's where memory calculators come in handy. These tools help you figure out the best memory settings for your MySQL setup by taking into account your system's resources and how you use your database.
MariaDB Performance Tuning Guide
In this guide, we'll cover practical tips to optimize MariaDB, like adjusting configuration settings, using effective indexing strategies, and monitoring performance metrics.
MySQL Memory Usage: A Guide to Optimization
Let’s explore the core elements of MySQL memory usage with best practices for trimming excess in demanding environments.
Database Performance Tuning Techniques
Database optimization is the practice of enhancing your MySQL database to improve its efficiency, speed, and reliability. This process entails a detailed examination and fine-tuning of critical components, including queries, indexes, storage configurations, to eliminate performance constraints.
Beyond the Basics: Digging into MySQL Variables
This guide unpacks the key contrasts between user-defined variables, which are dynamic parameters assigned within your queries, and system variables, which control the broader performance and settings of your MySQL database.

Query & Schema Optimization

MySQL Query and Schema Optimization is at the heart of database performance tuning. Poorly written queries or inefficient schema design can lead to slow response times, high CPU usage, and scalability issues as your application grows. This section covers techniques for analyzing and improving SQL queries, understanding execution plans, optimizing indexes, and designing a schema that supports fast and reliable access patterns.


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Managing Long-Running Queries in MySQL
Whether it’s spotting them early, stopping them in their tracks, or setting up a way to handle them automatically, this guide has you covered.
How to Use the MySQL General Query Log
When managing a MySQL database, understanding and troubleshooting issues often necessitate a detailed look at the queries running through the system. This is where the MySQL General Query Log comes into play. It provides an extensive record of all client connections and the queries they execute, making it a crucial tool for database administrators. In this article, we'll delve into what the MySQL General Query Log is, how to enable it, and how to effectively check its contents.
Introducing Automatic SQL Query Optimization
We’re excited to announce that Automatic SQL Query Optimization and Index Recommendations are now live for Releem Premium users running MySQL. MariaDB support is just around the corner.
Query Optimization in MySQL: Optimizing Top Queries vs. Slow Queries
In this article, we’ll explore why optimizing high-frequency queries that consume significant system resources (referred to as “top queries”) can often provide more substantial benefits than focusing solely on slow queries.
MySQL Database Schema Checks: Best Practices and Solutions
These checks can help you stay on top of any new or lingering problems before they snowball into bigger issues. You can dive deeper into these schema checks below and find out exactly how to fix any issues if your database doesn't pass.
Mastering Index Creation in MySQL: Practical Examples, Workbench Tips, and Performance Optimization
In this article, we’re going to explore MySQL index creation. We’re going to cover the fundamentals of index syntax with examples, take a look at MySQL workbench’s index capabilities, and discuss some advanced indexing techniques.
Fix PHP MySQL Slow Queries - Find and Optimize Problem Queries Fast
Struggling with slow PHP MySQL performance? Learn how to easily detect and fix slow and frequent queries to speed up your application with less manual work.

MySQL Security

MySQL security is a critical aspect of database management that ensures data confidentiality, integrity, and availability. Poorly secured MySQL instances can lead to data breaches, unauthorized access, and service disruptions. From user privilege management to SSL configuration and secure authentication methods, database administrators must take a proactive approach to hardening MySQL installations. This section covers essential best practices for securing your MySQL servers, including access control, encryption, audit logging, and common misconfigurations that expose databases to risk.


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MySQL Security Checks
MySQL Security checks can be leveraged to verify that your database adheres to top security standards. They offer a systematic approach to identifying potential vulnerabilities within your database settings, helping to fine-tune your database configuration to block unauthorized access and safeguard data integrity.