The latest from the MySQL community

Step 2: How it works

Given the topic complexity and the length of this article I have split it in 3 three different blog-post:

1. What is PGO
2. How PGO it works
3. Why my sysbench-trained build loses and how to do it right.

How PGO works: PGO is a two-pass build. First pass compiles with instrumentation (-fprofile-generate): every basic block and branch gets a counter.
You run a training workload, counters are dumped to profraw files.
Second pass recompiles using those counts to drive inlining decisions, branch layout (hot path falls through, cold path jumps away), hot/cold …

Given the topic complexity and the length of this article I have split it in 3 three different blog-post:

1. What is PGO
2. How PGO it works
3. Why my sysbench-trained build loses and how to do it right.

Step 1: What is PGO

PGO (Profile-Guided Optimization) is a two-pass compilation technique. 

First, we build the program with instrumentation that adds counters to every branch, loop, and call site.
Next, we run it against a representative training workload so these counters can record which code paths are actually hot versus cold.
We then recompile the program using that data to drive …

Thread Pool in Percona Server and MySQL (Part 1)

A new version of Community MySQL Server July release contains two versions 26.7.0 and 9.7.2. It is an important milestone because it finally brings a Thread Pooling feature to the community. The official MySQL Server Thread Pool plugin existed for a long time, but was available exclusively for MySQL Enterprise Edition.

Before MySQL 26.7.0 / 9.7.2 the most popular free thread pooling enabled alternatives were:

• Percona Server for MySQL, which shipped Thread Pool functionality as a plugin
• MariaDB with the Thread Pooling built into the server
• Third-party plugins such as xiezhenye/mysql-plugin-threadpool available on GitHub

Now we will be able to see what benefits the thread pooling mechanism brings to MySQL Server and compare it with the implementation of the thread pool in Percona Server for MySQL.

Part 1 will explain the …

Oracle patching carries operational risk. The traditional approach, manual in-place updates, leaves limited margin for error. One misstep in an Oracle software home can mean hours of unplanned downtime and a difficult root-cause conversation afterward.

In our recent Where can you find MySQL from August through October 2026?, we shared a broad view of MySQL conferences, community activities, and user group meetups. Since then, community gatherings in Denver, Taipei, and Nashville have brought MySQL users, developers, and contributors together for technical discussion and local connection. We are continuing that momentum […]

A status with angle brackets appears as text in the feed rather than turning into page markup. I appreciate that line breaks also stay visible, so a longer update reads more like what was typed. A submitted status gives you a concrete path into the feed. See how the app saves that update so the […]

Welcome back to Village News, our curated roundup of MySQL and database news.

If you want to get these updates, just subscribe to the blog.

Enjoy!

MySQL News

Note: Aggregated MySQL news can be found at Planet for MySQL Community and Planet MySQL (Oracle curated)

MySQL 26.10.0 Early Access Is Here
Oracle MySQL Group

TL;DR - A preview build of the next Innovation release is on MySQL Labs. The headline change is MySQL REST Service as a server component, which serves HTTPS endpoints without a separate MySQL Router. It is not …

OCI Open Source Service Update – Sept. 2026
Explore how MySQL HeatWave on Oracle Cloud Infrastructure helps optimize, protect, and scale MySQL applications.
Covers Autopilot Indexing, high availability with automatic failover, managed read replicas, enterprise security, and fast DB system cloning for development, testing, and regional recovery.

The post MySQL HeatWave Core Capabilities (September 2026) first appeared on Data Daz (dasini.net) - Data Systems, AI, and Real-World Insights.

The final slides from René Cannaò and Alkin Tezuysal's session on ProxySQL.Cloud, BYOC architecture, configuration, and day-to-day operations.

René Cannaò and Alkin Tezuysal presented managed ProxySQL in your own AWS account at MySQL BR Conf 2026 in São Paulo.