BiometricEvaluation::System Namespace Reference

Operating system, hardware, etc. More...

Functions
uint32_t	getCPUCount ()
	Obtain the number of central processing units that are online. More...
uint32_t	getCPUCoreCount ()
	Obtain the number of CPU cores that are online. More...
uint32_t	getCPUSocketCount ()
	Obtain the number of CPU sockets that are online. More...
uint64_t	getRealMemorySize ()
	Obtain the amount of real memory in the system. More...
double	getLoadAverage ()
	Obtain the system load average for the last minute. More...

Detailed Description

Operating system, hardware, etc.

The System package gathers all system related matters, such as the operating system name, number of CPUs, etc.

Function Documentation

getCPUCount()

uint32_t BiometricEvaluation::System::getCPUCount

(

)

Obtain the number of central processing units that are online.

Typically, this is the total logical CPU count for the system, often called hyperthreads.

Returns

The number of processing units.

Exceptions

Error::NotImplemented

Not implemented for this operating system, or the underlying OS feature is not installed.

getCPUCoreCount()

uint32_t BiometricEvaluation::System::getCPUCoreCount

(

)

Obtain the number of CPU cores that are online.

Obtain the number of central processing units that are online.

Returns

The number of CPU cores.

Exceptions

Error::NotImplemented

Not implemented for this operating system, or the underlying OS feature is not installed.

This is the total CPU core count for the system.

Returns

The number of CPU cores.

Exceptions

Error::NotImplemented

Not implemented for this operating system, or the underlying OS feature is not installed.

getCPUSocketCount()

uint32_t BiometricEvaluation::System::getCPUSocketCount

(

)

Obtain the number of CPU sockets that are online.

The hierarchy is CPU (thread) -> Core -> Socket, where there are 1..n hyperthreads per core and 1..n cores per socket.

Returns

The number of CPU sockets.

Exceptions

Error::NotImplemented

Not implemented for this operating system, or the underlying OS feature is not installed.

getRealMemorySize()

uint64_t BiometricEvaluation::System::getRealMemorySize

(

)

Obtain the amount of real memory in the system.

Returns

The real memory size, in kibibytes.

Exceptions

Error::NotImplemented

Not implemented for this operating system, or the underlying OS feature is not installed.

getLoadAverage()

double BiometricEvaluation::System::getLoadAverage

(

)

Obtain the system load average for the last minute.

Returns

The system load average.

Exceptions

Error::NotImplemented

Not implemented for this operating system, or the underlying OS feature is not installed.