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* [dpdk-dev] [Bug 376] mlx5 / DPDK 19.11 : single core throughput dropped at testpmd (VS DPDK 19.08)
@ 2019-12-05  9:43 bugzilla
  0 siblings, 0 replies; only message in thread
From: bugzilla @ 2019-12-05  9:43 UTC (permalink / raw)
  To: dev

https://bugs.dpdk.org/show_bug.cgi?id=376

            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. 
./arm64-armv8a-linuxapp-gcc/app/testpmd -c 0xfffffff8 -n 8 -r 2 -w 0000:01:00.0
 -- -i --nb-cores=1 --burst=64  --rss-ip --txq=1 --rxq=1 --mbcache=512
--rxd=1024 --txd=1024


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

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