NAME

       rte_cycles.h

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 97 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 119 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 151 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.

DPDK                                             Version 24.11.2                                 rte_cycles.h(3)