rxq_cq_process_v high cpu

Yaron Illouz yaroni at radcom.com
Wed Feb 9 19:24:17 CET 2022


I moved from dpdk 19 to dpdk 21
I read with multiqueue from Mellanox 100G card with dpdk function rte_eth_rx_burst
I can see in perf top very high cpu on function rxq_cq_process_v
How can i fix it? This function wasn't in my perf top with dpdk 19 version
53.12%  libdpdkutils.so               [.] rxq_cq_process_v
16.25%  libdpdkutils.so               [.] mlx5_rx_burst_vec
  5.50%  libcaptureimpl.so             [.] CrPacketReceiver::ReadFromPort
  2.06%  libdpdkutils.so               [.] CrDpdkDeviceUtil::GetPacketDetails
  2.04%  libhpadecoders.so             [.] CrReorderMbuf::GetTimedOut
  1.55%  libhpahwswmsg.so              [.] CrNetworkPacket::FindEthernetTypeAndPayload
  1.25%  libcaptureimpl.so             [.] CrPacketReceiver::FullPollMode
  1.17%  libdpdkutils.so               [.] rte_eth_dev_is_valid_port
  0.96%  libhpartpdecoderimpl.so       [.] CrRtpProcessing::GetSession
  0.77%  libdpdkutils.so               [.] CrDpdkDeviceUtil::InitPacketDetailsFromBuff
  0.66%  libhpartpdecoderimpl.so       [.] VQmonStreamIndicatePacket
  0.63%  libhpartpdecoderimpl.so       [.] VQmonJitterBufferIndicatePacket

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