Please make sure to send your emails in plain text format. The Mac mail program loves to use rich-text format is the original email use it and I have told it not only send plain text :-(
> On Nov 9, 2018, at 4:09 AM, Harsh Patel <[email protected]> wrote: > > We have implemented the logic for Tx/Rx as you suggested. We compared the > obtained throughput with another version of same application that uses Linux > raw sockets. > Unfortunately, the throughput we receive in our DPDK application is less by a > good margin. Is this any way we can optimize our implementation or anything > that we are missing? > The PoC code I was developing for DAPI I did not have any performance of issues it run just as fast with my limited testing. I converted the l3fwd code and I saw 10G 64byte wire rate as I remember using pktgen to generate the traffic. Not sure why you would see a big performance drop, but I do not know your application or code. > Thanks and regards > Harsh & Hrishikesh > > On Thu, 8 Nov 2018 at 23:14, Wiles, Keith <[email protected]> wrote: > > >> On Nov 8, 2018, at 4:58 PM, Harsh Patel <[email protected]> wrote: >> >> Thanks >> for your insight on the topic. Transmission is working with the functions >> you mentioned. We tried to search for some similar functions for handling >> incoming packets but could not find anything. Can you help us on that as >> well? >> > > I do not know if a DPDK API set for RX side. But in the DAPI (DPDK API) PoC I > was working on and presented at the DPDK Summit last Sept. In the PoC I did > create a RX side version. The issues it has a bit of tangled up in the DAPI > PoC. > > The basic concept is a call to RX a single packet does a rx_burst of N number > of packets keeping then in a mbuf list. The code would spin waiting for mbufs > to arrive or return quickly if a flag was set. When it did find RX mbufs it > would just return the single mbuf and keep the list of mbufs for later > requests until the list is empty then do another rx_burst call. > > Sorry this is a really quick note on how it works. If you need more details > we can talk more later. >> >> Regards, >> Harsh >> and Hrishikesh. >> >> >> On Thu, 8 Nov 2018 at 14:26, Wiles, Keith <[email protected]> wrote: >> >> >> > On Nov 8, 2018, at 8:24 AM, Harsh Patel <[email protected]> wrote: >> > >> > Hi, >> > We are working on a project where we are trying to integrate DPDK with >> > another software. We are able to obtain packets from the other environment >> > to DPDK environment in one-by-one fashion. On the other hand DPDK allows to >> > send/receive burst of data packets. We want to know if there is any >> > functionality in DPDK to achieve this conversion of single incoming packet >> > to a burst of packets sent on NIC and similarly, conversion of burst read >> > packets from NIC to send it to other environment sequentially? >> >> >> Search in the docs or lib/librte_ethdev directory on rte_eth_tx_buffer_init, >> rte_eth_tx_buffer, ... >> >> >> >> > Thanks and regards >> > Harsh Patel, Hrishikesh Hiraskar >> > NITK Surathkal >> >> Regards, >> Keith >> > > Regards, > Keith > Regards, Keith
