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# zx_ticks_get
## NAME
ticks_get - Read the number of high-precision timer ticks since boot.
## SYNOPSIS
```
#include <zircon/syscalls.h>
uint64_t zx_ticks_get(void)
```
## DESCRIPTION
**zx_ticks_get**() returns the number of high-precision timer ticks since boot.
These ticks may be processor cycles, high speed timer, profiling timer, etc.
They are not guaranteed to continue advancing when the system is asleep.
## RETURN VALUE
**zx_ticks_get**() returns the number of high-precision timer ticks since boot.
## ERRORS
**zx_tick_get**() does not report any error conditions.
## NOTES
The returned value may be highly variable. Factors that can affect it include:
- Changes in processor frequency
- Migration between processors
- Reset of the processor cycle counter
- Reordering of instructions (if required, use a memory barrier)
## SEE ALSO
[ticks_per_second](ticks_per_second.md)