> מאת: Dpdk Newbie <dpdkuse...@gmail.com > <mailto:dpdkuse...@gmail.com> > > תאריך: 9 בספט׳ 2024 01:32 > נושא: [EXTERNAL] Does DPDK provide RX timestamps? > אל: dev@dpdk.org <mailto:dev@dpdk.org> > עותק: > > > > Hi. I am using Intel (i210) and AWS ENA network interface cards. > > > > I would like to measure the following RX latencies: > > 1) NIC to DPDK packet ring buffer > > 2) DPDK packet ring buffer to application via rte_eth_rx_burst. > [Brandes, Shai] Hi, currently AWS doesn’t support HW timestamping. In order to get the full Rx latency you need to measure rte_eth_rx_burst as it is mapped to ENA driver routine eth_ena_recv_pkts which covers the entire flow including NIC to DPDK packet ring buffer flow (ena_com_rx_pkt)
All the best Shai > I don't mind measuring in nanoseconds or CPU cycles. > > > Unfortunately I cannot find any mention of hardware timestamps. > > > I found brief references to mbuf containing a timestamp in the dynamic > fields, but nothing definitive. > > Could someone please clarify what the situation is? > > Thanks,
