--innodb-thread-concurrency

This is a command-line option for the mariadbd & mysqld commands (arg: Required).

In 10.5 ES, 10.5 CS:

Deprecated parameter with no effect.

In 10.4 ES, 10.4 CS, 10.3 ES, 10.3 CS, 10.2 ES, 10.2 CS:

Helps in performance tuning in heavily concurrent environments. Sets the maximum number of threads allowed inside InnoDB. Value 0 will disable the thread throttling.

See also: Options for mariadbd & mysqld in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS