rte_cycles.h File Reference

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

Go to the source code of this file.

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).

Definition in file rte_cycles.h.

Function Documentation

uint64_t rte_get_tsc_hz

(

void

)

Get the measured frequency of the RDTSC counter

Returns

The TSC frequency for this lcore

Examples:

dpdk_qat/main.c, ip_fragmentation/main.c, ip_pipeline/init.c, ip_pipeline/thread_fe.c, ip_reassembly/main.c, ipv4_multicast/main.c, l2fwd-crypto/main.c, l2fwd-ivshmem/host/host.c, l2fwd-keepalive/main.c, l2fwd/main.c, l3fwd-acl/main.c, l3fwd-power/main.c, l3fwd-vf/main.c, l3fwd/main.c, link_status_interrupt/main.c, multi_process/l2fwd_fork/main.c, performance-thread/l3fwd-thread/main.c, qos_sched/app_thread.c, tep_termination/main.c, vhost/main.c, and vhost_xen/main.c.

static uint64_t rte_get_tsc_cycles ( void  )

inlinestatic

Return the number of TSC cycles since boot

Returns

the number of cycles

Examples:

ip_pipeline/init.c, and ip_pipeline/thread.c.

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

Examples:

l2fwd-jobstats/main.c.

Definition at line 151 of file rte_cycles.h.

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.

Examples:

l2fwd-jobstats/main.c, l2fwd-keepalive/main.c, l3fwd-power/main.c, qos_sched/init.c, and timer/main.c.

Definition at line 171 of file rte_cycles.h.

void rte_delay_us

(

unsigned

us

)

Wait at least us microseconds.

Parameters

us	The number of microseconds to wait.

Examples:

bond/main.c, l3fwd-power/main.c, ptpclient/ptpclient.c, tep_termination/main.c, and vhost/main.c.

static void rte_delay_ms ( unsigned  ms )

inlinestatic

Wait at least ms milliseconds.

Parameters

ms	The number of milliseconds to wait.

Examples:

bond/main.c, exception_path/main.c, ip_fragmentation/main.c, ip_reassembly/main.c, ipv4_multicast/main.c, kni/main.c, l2fwd-crypto/main.c, l2fwd-ivshmem/host/host.c, l2fwd-jobstats/main.c, l2fwd-keepalive/main.c, l2fwd/main.c, l3fwd-acl/main.c, l3fwd-power/main.c, l3fwd/main.c, link_status_interrupt/main.c, load_balancer/init.c, multi_process/client_server_mp/mp_server/init.c, multi_process/l2fwd_fork/main.c, multi_process/symmetric_mp/main.c, and performance-thread/l3fwd-thread/main.c.

Definition at line 200 of file rte_cycles.h.