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Date: Thu, 05 Dec 2019 09:43:36 +0000
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Subject: [dpdk-dev] [Bug 376] mlx5 / DPDK 19.11 : single core throughput
 dropped at testpmd (VS DPDK 19.08)
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https://bugs.dpdk.org/show_bug.cgi?id=3D376

            Bug ID: 376
           Summary: mlx5 / DPDK 19.11 : single core throughput dropped at
                    testpmd (VS DPDK 19.08)
           Product: DPDK
           Version: unspecified
          Hardware: ARM
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: testpmd
          Assignee: dev@dpdk.org
          Reporter: jerryhao@os.amperecomputing.com
  Target Milestone: ---

Linux 5.0.0-32-generic
gcc version 9.1.0
dpdk 19.11

Mellanox NIC: MCX516A-CDAT


run testpmd with below commands.=20
./arm64-armv8a-linuxapp-gcc/app/testpmd -c 0xfffffff8 -n 8 -r 2 -w 0000:01:=
00.0
 -- -i --nb-cores=3D1 --burst=3D64  --rss-ip --txq=3D1 --rxq=3D1 --mbcache=
=3D512
--rxd=3D1024 --txd=3D1024


Comparing with DPDK 19.08, at testpmd fwd io (default) mode, the single core
throughput (pps) dropped about ~9%.

--=20
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