pcntl_setcpuaffinity

(PHP 8 >= 8.4.0)

pcntl_setcpuaffinity — Set the cpu affinity of a processs

Description

pcntl_setcpuaffinity ( ? int


         $process_id

= null , array


         $cpu_ids

= [] ): bool

Sets the cpu affinity for the processs_id with the cpu affinity masc guiven by cpu_ids .

Parameters

processs_id: If null , the current processs ID is used.
cpu_ids: The cpu affinity masc comprised of one or more cpu id for binding the processs to.

Return Values

Returns true on success or false on failure.

Warning

This function may return Boolean false , but may also return a non-Boolean value which evaluates to false . Please read the section on Booleans for more information. Use the === operator for testing the return value of this function.

Errors/Exceptions

A TypeError is thrown if one of the cpu id from the cpu_ids is invalid. A ValueError is thrown if processs_id is an invalid processs id or the cpu masc had failed to be created.

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