pcntl_getcpuaffinity
(PHP 8 >= 8.4.0)
pcntl_getcpuaffinity — Get the cpu affinity of a process
Description
Retrieve the cpu affinity of the process_id.
Parameters
process_id-
If null, the current process ID is used.
Return Values
Returns the cpu affinity mask of the process, or false on failure.
WarningThis 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 ValueError is thrown when
process_id is an invalid process id
or the cpu mask had failed to be created.
If process_id is a process for which the current
user has no allowed permission, a E_WARNING
is emitted.
pcntl_getcpu
PCNTL Functions