2019-12-18 DPDK开启HPET高精度时钟

/**
 * Get the number of cycles since boot from the default timer.
 *
 * @return
 *   The number of cycles
 */
static inline uint64_t
rte_get_timer_cycles(void)
{
#ifdef RTE_LIBEAL_USE_HPET
    switch(eal_timer_source) {
    case EAL_TIMER_TSC:
#endif
        return rte_get_tsc_cycles();
#ifdef RTE_LIBEAL_USE_HPET
    case EAL_TIMER_HPET:
        return rte_get_hpet_cycles();
    default: rte_panic("Invalid timer source specified\n");
    }
#endif
}

• rte_get_timer_cycles()
• rte_get_hpet_cycles()

dpdk推荐使用rte_get_timer_cycles()和rte_get_timer_hz()API来替代HPET的特有API；如果一个应用使用了rte_get_hpet_cycles()和rte_get_hpet_hz()的API接口……