From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [dpdk-dev] [Bug 568] mlx5 flow match & drop performance problem
Date: Mon, 02 Nov 2020 01:05:01 +0000
Message-ID: <bug-568-3@http.bugs.dpdk.org/> (raw)
https://bugs.dpdk.org/show_bug.cgi?id=568
Bug ID: 568
Summary: mlx5 flow match & drop performance problem
Product: DPDK
Version: 19.11
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: major
Priority: Normal
Component: vhost/virtio
Assignee: dev@dpdk.org
Reporter: kangzy1982@qq.com
Target Milestone: ---
Kernel ver: 5.4.x
FW ver: 5.1-2.3.7
CPU : Intel(R) Xeon(R) Platinum 9242 CPU @ 2.30GHz
NIC: Mellanox Technologies MT27800 Family [ConnectX-5]
dpdk ver: 19.11 & 20.5 & 20.8
testpmd :
testpmd --log-level=8 -c 0xfffffffffffe --socket-mem=5120,5120 -n 4 -r 2 -w
81:00.0 -- -i --rxq=16 --txq=16 --nb-cores=16 --forward-mode icmpecho
without flows:
1> ixia generate 20Gbps 64bytes TCP traffic & 5 icmp echo request;
2> testpmd icmpecho will drop all & reply all icmp request
with these flows:
flow create 0 ingress pattern eth / ipv4 / tcp / end actions count / drop / end
flow create 0 ingress pattern eth / ipv4 / icmp / end actions queue index 3 /
mark id 3 / end
1> ixia generate 50Gbps 64bytes TCP traffic & 5 icmp echo request;
2> testpmd icmpecho will only receive all icmp request packets & reply;
without drop tcp flows, tespmd is ok!
but with drop tcp flows, testpmd actually can't receive all icmp request
packets!
it seem that NIC firmware cause icmp packets lost!
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