mlx5 / DPDK 19.11 : single core throughput dropped at testpmd (VS DPDK 19.08)
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: [email protected]
Reporter: [email protected]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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