tx burst sends, say, 10-15% percent of a supplied array. The tail is being ignored so I have to drop it to avoid overflow. Ethernet device is 82599.
In my app, I transmit all traffic through a ring then feed it to eth. That leads to overflow as well. 04.09.2015 20:03, Kyle Larose ?????: > Are you reading from the pcap faster than the device can transmit? > Does the app hold off reading from the pcap when the ethdev is pushing > back, or does it just tail drop? > > On Fri, Sep 4, 2015 at 12:14 AM, Yerden Zhumabekov > <e_zhumabekov at sts.kz <mailto:e_zhumabekov at sts.kz>> wrote: > > Hello, > > Did anyone try to work with pcap PMD recently? We're testing our app > with this setup: > > PCAP --- rte_eth_rx_burst--> APP-> rte_eth_tx_burst -> ethdev > > I'm experiencing very low TX performance leading to massive mbuf drop > while trying to send those packets over the Ethernet device. I tried > running ordinary l2fwd and got the same issue with over 80-90% of > packets drop. When I substitute PCAP with another ordinary Ethernet > device, everything works fine. Can anyone share an idea? > > -- > Sincerely, > > Yerden Zhumabekov > State Technical Service > Astana, KZ > > -- Sincerely, Yerden Zhumabekov State Technical Service Astana, KZ
