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Leonardo Bacchi FernandesThis post was originally published in April 2020 and was updated in January 2025. One of our customers recently asked whether it is possible to identify, from the MySQL side, the query that is causing high CPU usage on his system.The usage of simple OS tools to find the culprit has been a widely used technique […]
We usually receive and see some questions regarding the charset levels in MySQL, especially after the deprecation of utf8mb3 and the new default uf8mb4. If you understand how the charset works on MySQL but have some questions regarding this change, please check out Migrating to utf8mb4: Things to Consider by Sveta Smirnova. Some of the […]
In this blog post, we will briefly explore the OS tool strace. It is not widely used due to its performance impacts, and we don’t recommend using it in production. Still, it is amazing at helping you understand some things that happen in MySQL, where the OS is involved, and as a last case resource […]