pcntl_setcpuaffinity
(PHP 8 >= 8.4.0)
pcntl_setcpuaffinity — Set the cpu affinity of a process
Description
Sets the cpu affinity for the process_id with the cpu affinity mask given by cpu_ids.
Parameters
process_id- If
null, the current process ID is used. cpu_ids- The cpu affinity mask comprised of one or more cpu id for binding the process 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 process_id is an invalid process id or the cpu mask had failed to be created.
See Also
- pcntl_getcpuaffinity() - Get the cpu affinity of a process
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