rte_cycles.h File Reference

#include <stdint.h>
#include <rte_debug.h>
#include <rte_atomic.h>

Functions
uint64_t	rte_get_tsc_hz (void)
static uint64_t	rte_get_tsc_cycles (void)
static uint64_t	rte_get_timer_cycles (void)
static uint64_t	rte_get_timer_hz (void)
void	rte_delay_us (unsigned us)
static void	rte_delay_ms (unsigned ms)

Detailed Description

Simple Time Reference Functions (Cycles and HPET).

Function Documentation

static void rte_delay_ms ( unsigned  ms )

inlinestatic

Wait at least ms milliseconds.

Parameters

ms	The number of milliseconds to wait.

void rte_delay_us

(

unsigned

us

)

Wait at least us microseconds.

Parameters

us	The number of microseconds to wait.

static uint64_t rte_get_timer_cycles ( void  )

inlinestatic

Get the number of cycles since boot from the default timer.

Returns

The number of cycles

static uint64_t rte_get_timer_hz ( void  )

inlinestatic

Get the number of cycles in one second for the default timer.

Returns

The number of cycles in one second.

static uint64_t rte_get_tsc_cycles ( void  )

inlinestatic

Return the number of TSC cycles since boot

Returns

the number of cycles

uint64_t rte_get_tsc_hz

(

void

)

Get the measured frequency of the RDTSC counter

Returns

The TSC frequency for this lcore