MySQL Resource Groups, introduced in MySQL 8, provide the ability to manipulate the assignment of running threads to specific resources, thereby allowing the DBA to manage application priorities. Essentially, you can assign a thread to a specific virtual CPU. In this post, Im going to take a look at how these might work in practice. [&]

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https://www.percona.com/blog/2018/08/27/mysql-8-load-fine-tuning-with-resource-groups/