KeQueryTickCount

VOID
    KeQueryTickCount(
        OUT PLARGE_INTEGER  TickCount
        );

KeQueryTickCount maintains a count of the interval timer interrupts that have occurred since the system was booted.

Parameters

TickCount

Points to the tick count value on return from KeQueryTickCount.

Comments

The TickCount value increases by one at each interval timer interrupt while the system is running.

The preferred method of determining elapsed time is by using TickCount for relative timing and time stamps.

To determine the absolute elapsed time multiply the returned TickCount by the KeQueryTimeIncrement return value using compiler support for 64-bit integer operations.

The caller can be running at any IRQL.

See Also

KeQueryPerformanceCounter, KeQueryTimeIncrement