Name	Description
Geo::GeoFrameTime	This class measures frame rate and also computes a running average of the last n frames.
Geo::GeoTimer	A simple task timer Construct a GeoTimer, then as each task begins simply create a local GeoTimer::Task object to automatically start and stop the clock.
Geo::GeoTimer::Task	The Task object that the user creates to wrap an activity.
Geo::QuickTaskTimer	A little class to time a task.
Geo::ScopedTickCounter	A class that times the interval between construction and destruction, adding this number of ticks to the counter provided.
Geo::ScopedTimer	A class that times the interval between construction and destruction, adding the number of milliseconds to the counter provided.

Name	Description
SysInitialise()	Initialise platform-specific OS basics.
SysQueryCurrentTime()	Return the current system time in seconds since 1970-01-01T00:00:00.
SysQueryPerformanceCounter()	Returns the current performance counter.
SysQueryPerformanceFrequency()	Returns the number of system performance counter ticks in a second.
SysTidyup()	Tidyup platform-specific OS basics.

bool GEO_CALL Geo::SysInitialise

public: bool GEO_CALL SysInitialise()

Initialise platform-specific OS basics.

u64 GEO_CALL Geo::SysQueryCurrentTime

public: u64 GEO_CALL SysQueryCurrentTime()

Return the current system time in seconds since 1970-01-01T00:00:00.

public: s64 GEO_CALL SysQueryPerformanceCounter()

Returns the current performance counter.

public: s64 GEO_CALL SysQueryPerformanceFrequency()

Returns the number of system performance counter ticks in a second.

public: void GEO_CALL SysTidyup()

Tidyup platform-specific OS basics.