<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
text-align:justify;
text-justify:inter-ideograph;
font-size:10.5pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
/* Page Definitions */
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="ZH-CN" link="#0563C1" vlink="#954F72" style="text-justify-trim:punctuation">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am testing the perfomance of the mellanox CX5 100GbE NIC. I found that the perfomance(Mpps) of AMD(X86) server is better than that of Kunpeng920 Server(ARM) in the single-core scenario. the test command is as follows:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">RX-side:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">dpdk-testpmd -l 1-23 -n 4 -a XXXX -- -i --rxq=1 --txq=1 --txd=1024 --rxd=1024 --nb-cores=1 --eth-peer=0,xxxx --burst=128 --forward-mode=rxonly -a --txpkts=128 --mbcache=512 --rss-udp<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">TX-side (payload_size is 128byte):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">dpdk-testpmd -a XXXXX -l 1-23 -n 4 -- -i --rxq=4 --txq=4 --txd=1024 --rxd=1024 --nb-cores=4 --eth-peer=0,XXXXX --burst=64 --forward-mode=txonly -a --txpkts=128 --mbcache=512 --rss-udp<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">firmware-version: <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">16.32.1010 (HUA0000000004)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">OS:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">OpenEuler 22.03<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kernel: <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">5.10<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">DPDK:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">21.11.5<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Results:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">ARM:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">28.598Gbps, 27.928Mpps<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">X86:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">34.015Gbps, 33.218Mpps<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">After some checks, I suspect that the bottleneck is mainly the NIC. Have you tested the performance of the CX5 on the ARM server?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Do you have any optimization methods for ARM server, such as some parameters or firmware versions?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks<o:p></o:p></span></p>
</div>
</body>
</html>