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Asked: 2026-05-23T01:33:51+00:00

I have a procedure ( procedureA ) that loops through a table and calls

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I have a procedure (procedureA) that loops through a table and calls another procedure (procedureB) with variables derived from that table.

Each call to procedureB is independent of the last call.

When I run procedureA my system resources show a maximum CPU use of 50% (I assume that is 1 out of my 2 CPU cores).

However, if I open two instances of the mysql terminal and execute a query in both terminals, both CPU cores are used (CPU usage can reach close to 100%).

How can I achieve the same effect inside a stored procedure?

I want to do something like this:

BEGIN
    CALL procedureB(var1); -> CPU CORE #1
    SET var1 = var1+1;
    CALL procedureB(var1); -> CPU CORE #2
END

I know its not going to be that easy…
Any tips?

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1 Answer

  1. Editorial Team

    Within MySQL, to get something done asynchronously you’d have to use an CREATE EVENT, but I’m not sure whether creating one is allowed within a stored procedure. (On a side note: async. inserts can of course be done with INSERT DELAYED, but that’s 1 thread, period).

    Normally, you are much better of having a couple of processes/workers/deamons which can be accessed asynchronously by you program and have their own database connection, but that of course won’t be in the same procedure.

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