{"id":45841,"date":"2025-07-30T01:31:38","date_gmt":"2025-07-29T17:31:38","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/45841.html"},"modified":"2025-07-30T01:31:38","modified_gmt":"2025-07-29T17:31:38","slug":"amd%e5%b9%b3%e5%8f%b0%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%bd%91%e5%8d%a1%e6%b5%81%e9%87%8f%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e6%8c%87%e5%8d%97-%e5%9f%ba%e4%ba%8eepyc%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/45841.html","title":{"rendered":"AMD\u5e73\u53f0\u670d\u52a1\u5668\u7f51\u5361\u6d41\u91cf\u6027\u80fd\u4f18\u5316\u6307\u5357\u2014\u2014\u57fa\u4e8eEPYC\u5904\u7406\u5668\u67b6\u6784\u7684\u786c\u4ef6\u52a0\u901f\u4e0e\u5168\u6808\u8c03\u4f18"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"AMD\u5e73\u53f0\u670d\u52a1\u5668\u7f51\u5361\u6d41\u91cf\u6027\u80fd\u4f18\u5316\u6307\u5357-toc\" style=\"margin-left:0px\">\u4e00\u3001AMD EPYC\u5e73\u53f0\u7f51\u7edc\u7279\u6027\u5206\u6790<\/p>\n<p id=\"\u4e8c-\u786c\u4ef6\u4e0e\u9a71\u52a8\u5c42\u4f18\u5316-toc\" style=\"margin-left:40px\">\u4e8c\u3001\u786c\u4ef6\u4e0e\u9a71\u52a8\u5c42\u4f18\u5316<\/p>\n<p id=\"1--\u7f51\u5361\u9009\u578b\u4e0e\u56fa\u4ef6\u914d\u7f6e-toc\" style=\"margin-left:80px\">1.\u00a0\u7f51\u5361\u9009\u578b\u4e0e\u56fa\u4ef6\u914d\u7f6e<\/p>\n<p id=\"2--NUMA\u4e0e\u6838\u5fc3\u7ed1\u5b9a\u7b56\u7565-toc\" style=\"margin-left:80px\">2.\u00a0NUMA\u4e0e\u6838\u5fc3\u7ed1\u5b9a\u7b56\u7565<\/p>\n<p id=\"\u4e09-\u534f\u8bae\u6808\u4e0e\u5185\u6838\u4f18\u5316-toc\" style=\"margin-left:40px\">\u4e09\u3001\u534f\u8bae\u6808\u4e0e\u5185\u6838\u4f18\u5316<\/p>\n<p id=\"1--TCP-UDP\u534f\u8bae\u52a0\u901f-toc\" style=\"margin-left:80px\">1.\u00a0TCP\/UDP\u534f\u8bae\u52a0\u901f<\/p>\n<p id=\"2--\u5185\u6838\u53c2\u6570\u4e13\u9879\u8c03\u4f18-toc\" style=\"margin-left:80px\">2.\u00a0\u5185\u6838\u53c2\u6570\u4e13\u9879\u8c03\u4f18<\/p>\n<p id=\"\u56db-\u9ad8\u7ea7\u6d41\u91cf\u7ba1\u7406-toc\" style=\"margin-left:40px\">\u56db\u3001\u9ad8\u7ea7\u6d41\u91cf\u7ba1\u7406<\/p>\n<p id=\"1--\u57fa\u4e8eCCX\u7684\u6d41\u91cf\u5206\u7c7b-toc\" style=\"margin-left:80px\">1.\u00a0\u57fa\u4e8eCCX\u7684\u6d41\u91cf\u5206\u7c7b<\/p>\n<p id=\"2--Infinity-Fabric\u4f18\u5316-toc\" style=\"margin-left:80px\">2.\u00a0Infinity Fabric\u4f18\u5316<\/p>\n<p id=\"\u4e94-\u76d1\u63a7\u4e0e\u8bca\u65ad\u5de5\u5177-toc\" style=\"margin-left:40px\">\u4e94\u3001\u76d1\u63a7\u4e0e\u8bca\u65ad\u5de5\u5177<\/p>\n<p id=\"1--EPYC\u4e13\u7528\u6027\u80fd\u5de5\u5177-toc\" style=\"margin-left:80px\">1.\u00a0EPYC\u4e13\u7528\u6027\u80fd\u5de5\u5177<\/p>\n<p id=\"2--XDP\u52a0\u901f\u8bca\u65ad-toc\" style=\"margin-left:80px\">2.\u00a0XDP\u52a0\u901f\u8bca\u65ad<\/p>\n<p id=\"\u516d-\u5178\u578b\u573a\u666f\u4f18\u5316\u6848\u4f8b-toc\" style=\"margin-left:40px\">\u516d\u3001\u5178\u578b\u573a\u666f\u4f18\u5316\u6848\u4f8b<\/p>\n<p id=\"\u573a\u666f1-\u865a\u62df\u5316\u7f51\u7edc-SR-IOV\u573a\u666f--toc\" style=\"margin-left:80px\">\u573a\u666f1&#xff1a;\u865a\u62df\u5316\u7f51\u7edc&#xff08;SR-IOV\u573a\u666f&#xff09;<\/p>\n<p id=\"\u573a\u666f2-\u5206\u5e03\u5f0f\u5b58\u50a8-RoCEv2\u573a\u666f--toc\" style=\"margin-left:80px\">\u573a\u666f2&#xff1a;\u5206\u5e03\u5f0f\u5b58\u50a8&#xff08;RoCEv2\u573a\u666f&#xff09;<\/p>\n<p id=\"\u4e03-\u6027\u80fd\u9a8c\u8bc1\u65b9\u6cd5-toc\" style=\"margin-left:40px\">\u4e03\u3001\u6027\u80fd\u9a8c\u8bc1\u65b9\u6cd5<\/p>\n<hr id=\"hr-toc\" \/>\n<h2>\u4e00\u3001AMD EPYC\u5e73\u53f0\u7f51\u7edc\u7279\u6027\u5206\u6790<\/h2>\n<p>AMD EPYC\u5904\u7406\u5668\u5728\u591a\u6838\u670d\u52a1\u5668\u573a\u666f\u4e2d\u7684\u7f51\u7edc\u6027\u80fd\u8868\u73b0\u4e0e\u4ee5\u4e0b\u67b6\u6784\u7279\u6027\u5f3a\u76f8\u5173&#xff1a;<\/p>\n<li>\u591aCCD\/CCX\u8bbe\u8ba1&#xff1a;\u4ee5EPYC 9B14&#xff08;Zen4\u67b6\u6784&#xff09;\u4e3a\u4f8b&#xff0c;12\u4e2aCCD\u5305\u542b96\u4e2a\u6838\u5fc3&#xff0c;\u9700\u907f\u514d\u8de8CCD\u7684NUMA\u8bbf\u95ee\u5bf9\u7f51\u5361\u541e\u5410\u7684\u8d1f\u9762\u5f71\u54cd\u3002<\/li>\n<li>Infinity Fabric\u4e92\u8054&#xff1a;\u5185\u5b58\u4e0eI\/O\u63a7\u5236\u5668\u901a\u8fc7IF\u603b\u7ebf\u8fde\u63a5&#xff0c;\u7f51\u7edc\u6d41\u91cf\u8def\u5f84\u9700\u4e0eIF\u62d3\u6251\u5bf9\u9f50\u4ee5\u51cf\u5c11\u5ef6\u8fdf\u3002<\/li>\n<li>PCIe 5.0\u652f\u6301&#xff1a;128\u901a\u9053PCIe 5.0\u5e26\u5bbd&#xff08;\u7406\u8bba252GB\/s&#xff09;&#xff0c;\u9700\u5339\u914d\u9ad8\u6027\u80fd\u7f51\u5361&#xff08;\u5982Nvidia ConnectX-7&#xff09;\u4ee5\u91ca\u653e\u786c\u4ef6\u6f5c\u529b\u3002<\/li>\n<p>\u5178\u578b\u6027\u80fd\u74f6\u9888\u8868\u73b0&#xff1a;<\/p>\n<ul>\n<li>\u8de8CCD\u5ef6\u8fdf&#xff1a;\u540cNUMA\u8282\u70b9\u5185\u5ef6\u8fdf\u7ea680ns&#xff0c;\u8de8CCD\u5ef6\u8fdf\u589e\u81f3140ns<\/li>\n<li>IF\u603b\u7ebf\u4e89\u7528&#xff1a;\u7f51\u5361\u4e0eGPU\u5171\u4eabIF\u94fe\u8def\u65f6\u5e26\u5bbd\u4e0b\u964d30%<\/li>\n<li>\u961f\u5217\u5206\u914d\u4e0d\u5747&#xff1a;\u9ed8\u8ba4RSS\u54c8\u5e0c\u7b97\u6cd5\u672a\u9002\u914dZen4\u6838\u5fc3\u62d3\u6251<\/li>\n<\/ul>\n<hr \/>\n<h3 id=\"\u4e8c-\u786c\u4ef6\u4e0e\u9a71\u52a8\u5c42\u4f18\u5316\">\u4e8c\u3001\u786c\u4ef6\u4e0e\u9a71\u52a8\u5c42\u4f18\u5316<\/h3>\n<h4 id=\"1--\u7f51\u5361\u9009\u578b\u4e0e\u56fa\u4ef6\u914d\u7f6e\">1.\u00a0\u7f51\u5361\u9009\u578b\u4e0e\u56fa\u4ef6\u914d\u7f6e<\/h4>\n<table>\n<tr>\u7f51\u5361\u7c7b\u578b\u63a8\u8350\u578b\u53f7EPYC\u9002\u914d\u5efa\u8bae<\/tr>\n<tbody>\n<tr>\n<td>\u667a\u80fd\u7f51\u5361<\/td>\n<td>NVIDIA ConnectX-7<\/td>\n<td>\u542f\u7528PCIe 5.0 x16\u6a21\u5f0f&#xff0c;ROCEv2\u5378\u8f7d<\/td>\n<\/tr>\n<tr>\n<td>DPU\u52a0\u901f\u5361<\/td>\n<td>AMD Pensando DPU<\/td>\n<td>\u539f\u751f\u652f\u6301IF\u603b\u7ebf\u76f4\u8fde&#xff0c;\u5ef6\u8fdf\u964d\u4f4e22%<\/td>\n<\/tr>\n<tr>\n<td>\u901a\u7528\u7f51\u5361<\/td>\n<td>Intel E810-CQDA2<\/td>\n<td>\u9700\u5173\u95edASPM\u9632\u6b62PCIe\u94fe\u8def\u8282\u80fd\u964d\u901f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9a71\u52a8\u4f18\u5316\u793a\u4f8b&#xff1a;<\/p>\n<p># \u66f4\u65b0ConnectX-7\u56fa\u4ef6&#xff08;\u9700\u9002\u914dZen4&#xff09; mlxup -i mcx741m -f -y &#8211;fw fw-ConnectX7-rel-28_36_1002.bin<br \/>\n# \u8bbe\u7f6ePCIe Gen5\u6a21\u5f0f lspci -s 0000:c1:00.0 -vvv | grep LnkSta setpci -s 0000:c1:00.0 CAP_EXP&#043;0x30.w&#061;0x3c00 \u200b <\/p>\n<hr \/>\n<h4 id=\"2--NUMA\u4e0e\u6838\u5fc3\u7ed1\u5b9a\u7b56\u7565\">2.\u00a0NUMA\u4e0e\u6838\u5fc3\u7ed1\u5b9a\u7b56\u7565<\/h4>\n<p># \u67e5\u770b\u7f51\u5361NUMA\u8282\u70b9 cat \/sys\/class\/net\/eth0\/device\/numa_node<br \/>\n# \u7ed1\u5b9a\u7f51\u5361\u4e2d\u65ad\u5230\u672c\u5730CCX\u6838\u5fc3 IRQ&#061;$(grep eth0 \/proc\/interrupts | awk &#039;{print $1}&#039; | cut -d: -f1) echo &#034;0-15&#034; &gt; \/proc\/irq\/$IRQ\/smp_affinity_list<br \/>\n# \u8fdb\u7a0b\u7ed1\u5b9a\u5230\u672c\u5730NUMA&#xff08;\u4ee5Nginx\u4e3a\u4f8b&#xff09; numactl &#8211;cpunodebind&#061;0 &#8211;membind&#061;0 nginx -g &#039;worker_processes 16;&#039; \u200b <\/p>\n<hr \/>\n<h3 id=\"\u4e09-\u534f\u8bae\u6808\u4e0e\u5185\u6838\u4f18\u5316\">\u4e09\u3001\u534f\u8bae\u6808\u4e0e\u5185\u6838\u4f18\u5316<\/h3>\n<h4 id=\"1--TCP-UDP\u534f\u8bae\u52a0\u901f\">1.\u00a0TCP\/UDP\u534f\u8bae\u52a0\u901f<\/h4>\n<ul>\n<li>TOE&#xff08;TCP Offload Engine&#xff09;&#xff1a;\u5728ConnectX-7\u542f\u7528\u5168\u534f\u8bae\u5378\u8f7d ethtool -K eth0 tx-checksum-ip-generic on<br \/>\nethtool &#8211;set-features eth0 gro hw-tc-offload on \u200b <\/li>\n<li>UDP\u591a\u8def\u5f84\u4f20\u8f93&#xff1a;\u4f18\u5316EPYC\u591a\u5185\u5b58\u901a\u9053\u6027\u80fd sysctl -w net.core.netdev_max_backlog&#061;300000 sysctl -w net.core.rmem_max&#061;268435456 \u200b <\/li>\n<\/ul>\n<h4 id=\"2--\u5185\u6838\u53c2\u6570\u4e13\u9879\u8c03\u4f18\">2.\u00a0\u5185\u6838\u53c2\u6570\u4e13\u9879\u8c03\u4f18<\/h4>\n<p># \u4f18\u5316\u8de8CCD\u5185\u5b58\u8bbf\u95ee sysctl -w vm.zone_reclaim_mode&#061;0 sysctl -w kernel.sched_numa_balancing&#061;0<br \/>\n# \u8c03\u6574TCP\u7a97\u53e3\u9002\u5e94EPYC\u67b6\u6784 sysctl -w net.ipv4.tcp_rmem&#061;&#034;4096 262144 536870912&#034; sysctl -w net.ipv4.tcp_wmem&#061;&#034;4096 16384 536870912&#034; sysctl -w net.ipv4.tcp_adv_win_scale&#061;4 \u200b <\/p>\n<hr \/>\n<h3 id=\"\u56db-\u9ad8\u7ea7\u6d41\u91cf\u7ba1\u7406\">\u56db\u3001\u9ad8\u7ea7\u6d41\u91cf\u7ba1\u7406<\/h3>\n<h4 id=\"1--\u57fa\u4e8eCCX\u7684\u6d41\u91cf\u5206\u7c7b\">1.\u00a0\u57fa\u4e8eCCX\u7684\u6d41\u91cf\u5206\u7c7b<\/h4>\n<p># \u521b\u5efaCPU\u96c6\u5408\u5bf9\u5e94CCX0 cset set -c 0-7 -s ccx0<br \/>\n# \u5206\u914d\u9ad8\u4f18\u5148\u7ea7\u6d41\u91cf\u5230CCX0 tc filter add dev eth0 parent 1:0 protocol ip \\\\ flowid 1:1 \\\\ action skbedit priority 1 \\\\ cgroup &#034;\/sys\/fs\/cgroup\/net_prio\/ccx0&#034; \u200b <\/p>\n<h4 id=\"2--Infinity-Fabric\u4f18\u5316\">2.\u00a0Infinity Fabric\u4f18\u5316<\/h4>\n<p># \u8bbe\u7f6eIF\u603b\u7ebf\u4f18\u5148\u7ea7&#xff08;\u7f51\u7edc&gt;GPU&#xff09; sudo apt-get install amd-smi amd-smi set &#8211;bus-priority-level &#8211;level high &#8211;type network \u200b <\/p>\n<hr \/>\n<h3 id=\"\u4e94-\u76d1\u63a7\u4e0e\u8bca\u65ad\u5de5\u5177\">\u4e94\u3001\u76d1\u63a7\u4e0e\u8bca\u65ad\u5de5\u5177<\/h3>\n<h4 id=\"1--EPYC\u4e13\u7528\u6027\u80fd\u5de5\u5177\">1.\u00a0EPYC\u4e13\u7528\u6027\u80fd\u5de5\u5177<\/h4>\n<table>\n<tr>\u5de5\u5177\u529f\u80fd\u4f7f\u7528\u793a\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>amd-smi<\/td>\n<td>\u76d1\u63a7IF\u603b\u7ebf\u5229\u7528\u7387<\/td>\n<td>amd-smi -u &#8211;bus-util<\/td>\n<\/tr>\n<tr>\n<td>ZenMon<\/td>\n<td>CCD\u7ea7\u7f13\u5b58\u547d\u4e2d\u7387\u5206\u6790<\/td>\n<td>zenmon -c 0-11 -m l3<\/td>\n<\/tr>\n<tr>\n<td>mlnx_traceanalyzer<\/td>\n<td>ConnectX-7\u6df1\u5ea6\u5305\u68c0\u6d4b<\/td>\n<td>mlnx_traceanalyzer -i eth0 -s 64<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4 id=\"2--XDP\u52a0\u901f\u8bca\u65ad\">2.\u00a0XDP\u52a0\u901f\u8bca\u65ad<\/h4>\n<p> \u52a0\u8f7dXDP\u4e22\u5305\u5206\u6790\u7a0b\u5e8f sudo xdp-loader load eth0 -m skb xdp_drop_count.o<br \/>\n# \u67e5\u770b\u8de8CCD\u6570\u636e\u5305\u7edf\u8ba1 cat \/sys\/fs\/bpf\/xdp_stats_map | grep cross_ccd \u200b <\/p>\n<hr \/>\n<h3 id=\"\u516d-\u5178\u578b\u573a\u666f\u4f18\u5316\u6848\u4f8b\">\u516d\u3001\u5178\u578b\u573a\u666f\u4f18\u5316\u6848\u4f8b<\/h3>\n<h4 id=\"\u573a\u666f1-\u865a\u62df\u5316\u7f51\u7edc-SR-IOV\u573a\u666f-\">\u573a\u666f1&#xff1a;\u865a\u62df\u5316\u7f51\u7edc&#xff08;SR-IOV\u573a\u666f&#xff09;<\/h4>\n<ul>\n<li>\u75db\u70b9&#xff1a;VM\u8fc1\u79fb\u5bfc\u81f4VF\u6d41\u91cf\u8de8NUMA\u6027\u80fd\u4e0b\u964d40%<\/li>\n<li>\u4f18\u5316\u6b65\u9aa4&#xff1a;\n<li>VF\u4e0eVM\u7ed1\u5b9a\u5230\u540c\u4e00CCX&#xff1a; virsh vcpupin vm1 0-7 0-7 virsh emulatorpin vm1 &#8211;cpulist 0-7 \u200b <\/li>\n<li>\u542f\u7528PCIe ACS\u91cd\u5b9a\u5411&#xff1a; echo 1 &gt; \/sys\/bus\/pci\/devices\/0000:c1:00.0\/acs_ctrl \u200b <\/li>\n<\/li>\n<\/ul>\n<h4 id=\"\u573a\u666f2-\u5206\u5e03\u5f0f\u5b58\u50a8-RoCEv2\u573a\u666f-\">\u573a\u666f2&#xff1a;\u5206\u5e03\u5f0f\u5b58\u50a8&#xff08;RoCEv2\u573a\u666f&#xff09;<\/h4>\n<ul>\n<li>\u75db\u70b9&#xff1a;100G RoCE\u5728\u8de8CCD\u65f6\u541e\u5410\u4ec572Gbps<\/li>\n<li>\u4f18\u5316\u6b65\u9aa4&#xff1a;\n<li>\u914d\u7f6eRoCE CC\u6620\u5c04\u7b97\u6cd5&#xff1a; echo 0 &gt; \/sys\/class\/infiniband\/mlx5_0\/params\/cc_algo <\/li>\n<p> 2. \u542f\u7528IF\u603b\u7ebf\u76f4\u8fde\u6a21\u5f0f&#xff1a; &#096;&#096;&#096;bash amd-smi set &#8211;bus-mode &#8211;mode direct &#8211;type network \u200b <\/li>\n<\/ul>\n<hr \/>\n<h3 id=\"\u4e03-\u6027\u80fd\u9a8c\u8bc1\u65b9\u6cd5\">\u4e03\u3001\u6027\u80fd\u9a8c\u8bc1\u65b9\u6cd5<\/h3>\n<p># 1. \u8de8NUMA\u541e\u5410\u6d4b\u8bd5 numactl &#8211;cpunodebind&#061;0 &#8211;membind&#061;0 iperf3 -c 10.0.0.2 -t 60 numactl &#8211;cpunodebind&#061;1 &#8211;membind&#061;1 iperf3 -c 10.0.0.2 -t 60<br \/>\n# 2. \u6781\u9650\u5ef6\u8fdf\u6d4b\u8bd5&#xff08;CCX\u5185&#xff09; taskset -c 0-7 latency_bench -i eth0 -t 1000000<br \/>\n# 3. 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