zx_ticks_per_second

NAME

ticks_per_second - Read the number of high-precision timer ticks in a second.

SYNOPSIS

#include <zircon/syscalls.h>

uint64_t zx_ticks_per_second(void)

DESCRIPTION

zx_ticks_per_second() returns the number of high-precision timer ticks in a second.

This can be used together with zx_ticks_get() to calculate the amount of time elapsed between two subsequent calls to zx_ticks_get().

RETURN VALUE

zx_ticks_per_second() returns the number of high-precision timer ticks in a second.

ERRORS

zx_ticks_per_second() does not report any error conditions.

EXAMPLES

uint64_t ticks_per_second = zx_ticks_per_second();
uint64_t ticks_start = zx_ticks_get();

// do some more work

uint64_t ticks_end = zx_ticks_get();
double elapsed_seconds = (ticks_end - ticks_start) / (double)ticks_per_second;