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Asked: 2026-06-08T16:31:23+00:00

mysql Ver 14.16 Distrib 5.2.12-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2, tables MyISAM Situation:

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mysql  Ver 14.16 Distrib 5.2.12-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2, tables MyISAM

Situation: two select queries from two different clients to one database and tables (query with join).
Processor on server has 8 cores.
I want to know, isn’t start two processes, one for each client, and one from 8 core execute every process?
It’s possible? Is any MySQL/MariaDBoption for max_process or something else?
As i understand, one mysql process can work with 1 core of processor. I make google search for it, and find information about some plugin for InnoDB tables, which works with multicore processors, but i want understand how mysql works.
What i need to reed about this?

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1 Answer

  1. Editorial Team

    By default (MySQL 5.5+) MySQL has no restriction on the number of threads, and your OS will be in charge of scheduling the threads (splitting them between processors, etc.).

    Read about:

    innodb_thread_concurrency

    A recommended value is 2 times the number of CPUs plus the number of
    disks.

    To read more in depth on this topic read Changes Regarding Thread Concurrency and How MySQL Uses Threads for Client Connections.

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