rte_cycles.h - Man Page
Synopsis
#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)
static void rte_delay_ms (unsigned ms)
void rte_delay_us_block (unsigned int us)
void rte_delay_us_sleep (unsigned int us)
void rte_delay_us_callback_register (void(*userfunc)(unsigned int))
Variables
void(* rte_delay_us )(unsigned int us)
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
static uint64_t rte_get_tsc_cycles (void) [inline], [static]
Return the number of TSC cycles since boot
- Returns
the number of cycles
static uint64_t rte_get_timer_cycles (void) [inline], [static]
Get the number of cycles since boot from the default timer.
- Returns
The number of cycles
Definition at line 93 of file rte_cycles.h.
static uint64_t rte_get_timer_hz (void) [inline], [static]
Get the number of cycles in one second for the default timer.
- Returns
The number of cycles in one second.
Definition at line 115 of file rte_cycles.h.
static void rte_delay_ms (unsigned ms) [inline], [static]
Wait at least ms milliseconds.
- Parameters
ms The number of milliseconds to wait.
Definition at line 147 of file rte_cycles.h.
void rte_delay_us_block (unsigned int us)
Blocking delay function.
- Parameters
us Number of microseconds to wait.
void rte_delay_us_sleep (unsigned int us)
Delay function that uses system sleep. Does not block the CPU core.
- Parameters
us Number of microseconds to wait.
void rte_delay_us_callback_register (void(*)(unsigned int) userfunc)
Replace rte_delay_us with user defined function.
- Parameters
userfunc User function which replaces rte_delay_us. rte_delay_us_block restores builtin block delay function.
Variable Documentation
void(* rte_delay_us) (unsigned int us) (unsigned int us) [extern]
Wait at least us microseconds. This function can be replaced with user-defined function.
- See also
rte_delay_us_callback_register
- Parameters
us The number of microseconds to wait.
Author
Generated automatically by Doxygen for DPDK from the source code.
Referenced By
The man pages rte_delay_ms(3), rte_delay_us(3), rte_delay_us_block(3), rte_delay_us_callback_register(3), rte_delay_us_sleep(3), rte_get_timer_cycles(3), rte_get_timer_hz(3), rte_get_tsc_cycles(3) and rte_get_tsc_hz(3) are aliases of rte_cycles.h(3).