Re: [dpdk-dev] [PATCH v4 3/3] rxtx_callbacks: Add support for HW timestamp

2019-06-12 Thread Thomas Monjalon
02/05/2019 21:11, Tom Barbette: > + if (hw_timestamping && ticks_per_cycle_mult == 0) { > + uint64_t cycles_base = rte_rdtsc(); > + uint64_t ticks_base; > + retval = rte_eth_read_clock(port, &ticks_base); > + if (retval != 0) > +

Re: [dpdk-dev] [PATCH v4 3/3] rxtx_callbacks: Add support for HW timestamp

2019-05-31 Thread Ferruh Yigit
On 5/2/2019 1:11 PM, Tom Barbette wrote: > Use rxtx callback to demonstrate a way to use rte_eth_read_clock to > convert the hardware timestamps to an amount of cycles. > > This allows to get the amount of time the packet spent since its entry > in the device. While the regular latency only shows