{"id":24193,"date":"2025-09-01T15:04:36","date_gmt":"2025-09-01T07:04:36","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-cn\/how-to-test-memory-bandwidth-limits-on-hong-kong-servers\/"},"modified":"2025-09-01T15:15:25","modified_gmt":"2025-09-01T07:15:25","slug":"how-to-test-memory-bandwidth-limits-on-hong-kong-servers","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-test-memory-bandwidth-limits-on-hong-kong-servers\/","title":{"rendered":"\u5982\u4f55\u6d4b\u8bd5\u9999\u6e2f\u670d\u52a1\u5668\u7684\u5185\u5b58\u5e26\u5bbd\u9650\u5236"},"content":{"rendered":"<p>\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\u5bf9\u4e8e\u4f18\u5316\u670d\u52a1\u5668\u6027\u80fd\u81f3\u5173\u91cd\u8981\uff0c\u5c24\u5176\u662f\u5728<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/hk\/cn2\/\" target=\"_blank\">\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528<\/a>\u73af\u5883\u4e2d\u3002\u672c\u7efc\u5408\u6307\u5357\u63a2\u8ba8\u4e86\u6d4b\u8bd5<a href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/why-hong-kong-server-bandwidth-becomes-the-top-choice\/\" target=\"_blank\">\u670d\u52a1\u5668\u5185\u5b58\u5e26\u5bbd<\/a>\u9650\u5236\u7684\u4e13\u4e1a\u65b9\u6cd5\u3001\u5fc5\u8981\u5de5\u5177\u548c\u4f18\u5316\u6280\u672f\uff0c\u4ee5\u5b9e\u73b0\u6700\u4f73\u6027\u80fd\u3002\u4f5c\u4e3a\u4e9a\u6d32\u4e3b\u8981\u91d1\u878d\u4e2d\u5fc3\uff0c\u9999\u6e2f\u5728\u9ad8\u9891\u4ea4\u6613\u3001\u5b9e\u65f6\u5206\u6790\u548c\u4f01\u4e1a\u5e94\u7528\u65b9\u9762\u786e\u4fdd\u6700\u4f73\u670d\u52a1\u5668\u6027\u80fd\u5bf9\u4fdd\u6301\u7ade\u4e89\u4f18\u52bf\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<h2><strong>\u6d4b\u8bd5\u524d\u51c6\u5907\u548c\u8981\u6c42<\/strong><\/h2>\n<p>\u5728\u5f00\u59cb\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\u4e4b\u524d\uff0c\u786e\u4fdd\u6b63\u786e\u8bbe\u7f6e\u5bf9\u4e8e\u83b7\u5f97\u51c6\u786e\u7ed3\u679c\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u6240\u9700\u5185\u5bb9\uff1a<\/p>\n<ul>\n<li>\u9999\u6e2f\u670d\u52a1\u5668\u7684root\u8bbf\u95ee\u6743\u9650<\/li>\n<li>\u6e05\u6d01\u7684\u6d4b\u8bd5\u73af\u5883\uff08\u6700\u5c11\u7684\u540e\u53f0\u8fdb\u7a0b\uff09<\/li>\n<li>\u6700\u65b0\u7248\u672c\u7684\u6d4b\u8bd5\u5de5\u5177<\/li>\n<li>\u7cfb\u7edf\u76d1\u63a7\u5de5\u5177<\/li>\n<li>\u6027\u80fd\u57fa\u51c6\u6587\u6863<\/li>\n<li>\u5185\u5b58\u89c4\u683c\u8be6\u60c5\uff08DDR4\/DDR5\u3001\u9891\u7387\u3001\u65f6\u5e8f\uff09<\/li>\n<li>CPU\u62d3\u6251\u4fe1\u606f\uff08\u6838\u5fc3\u6570\u91cf\u3001NUMA\u8282\u70b9\uff09<\/li>\n<li>\u6e29\u5ea6\u76d1\u63a7\u5de5\u5177\uff08\u5728\u9999\u6e2f\u6c14\u5019\u6761\u4ef6\u4e0b\u5c24\u4e3a\u91cd\u8981\uff09<\/li>\n<\/ul>\n<h2><strong>\u6838\u5fc3\u6d4b\u8bd5\u5de5\u5177\u6982\u8ff0<\/strong><\/h2>\n<p>\u4e3a\u4e86\u8fdb\u884c\u5168\u9762\u7684\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\uff0c\u6211\u4eec\u5c06\u91cd\u70b9\u5173\u6ce8\u4e09\u4e2a\u4e3b\u8981\u5de5\u5177\uff0c\u6bcf\u4e2a\u5de5\u5177\u90fd\u670d\u52a1\u4e8e\u7279\u5b9a\u7684\u6d4b\u8bd5\u76ee\u7684\uff1a<\/p>\n<ul>\n<li>STREAM Benchmark:\n<ul>\n<li>\u5185\u5b58\u5e26\u5bbd\u6d4b\u91cf\u7684\u884c\u4e1a\u6807\u51c6<\/li>\n<li>\u63d0\u4f9b\u4e00\u81f4\u7684\u8de8\u5e73\u53f0\u7ed3\u679c<\/li>\n<li>\u652f\u6301\u591a\u7ebf\u7a0b\u6d4b\u8bd5\u573a\u666f<\/li>\n<li>\u975e\u5e38\u9002\u5408DDR4\/DDR5\u5bf9\u6bd4\u6d4b\u8bd5<\/li>\n<\/ul>\n<\/li>\n<li>Intel\u5185\u5b58\u5ef6\u8fdf\u68c0\u67e5\u5668 (MLC):\n<ul>\n<li>\u8be6\u7ec6\u7684\u5185\u5b58\u5b50\u7cfb\u7edf\u5206\u6790<\/li>\n<li>\u7f13\u5b58\u5230\u5185\u5b58\u4f20\u8f93\u6d4b\u91cf<\/li>\n<li>NUMA\u62d3\u6251\u6d4b\u8bd5\u529f\u80fd<\/li>\n<li>\u5185\u5b58\u63a7\u5236\u5668\u6027\u80fd\u5206\u6790<\/li>\n<\/ul>\n<\/li>\n<li>Sysbench:\n<ul>\n<li>\u591a\u7ebf\u7a0b\u57fa\u51c6\u6d4b\u8bd5\u5957\u4ef6<\/li>\n<li>\u771f\u5b9e\u5de5\u4f5c\u8d1f\u8f7d\u6a21\u62df<\/li>\n<li>\u5185\u5b58\u8bbf\u95ee\u6a21\u5f0f\u5206\u6790<\/li>\n<li>\u4e0e\u76d1\u63a7\u7cfb\u7edf\u96c6\u6210<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u9010\u6b65\u6d4b\u8bd5\u6d41\u7a0b<\/strong><\/h2>\n<p>\u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u4f7f\u7528\u6838\u5fc3\u5de5\u5177\u8fdb\u884c\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\u7684\u6280\u672f\u5b9e\u73b0\uff0c\u5e76\u7279\u522b\u8003\u8651\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u7684\u7279\u70b9\u3002<\/p>\n<h3>1. STREAM Benchmark\u5b9e\u65bd<\/h3>\n<p>STREAM benchmark\u63d0\u4f9b\u56db\u4e2a\u5173\u952e\u7684\u5411\u91cf\u8fd0\u7b97\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4ee5\u6700\u4f73\u914d\u7f6e\u6267\u884c\u5b83\u4eec\uff1a<\/p>\n<ol>\n<li>\u4e0b\u8f7d\u5e76\u4f7f\u7528\u4f18\u5316\u7f16\u8bd1STREAM\uff1a\n<pre><code>wget http:\/\/www.cs.virginia.edu\/stream\/FTP\/Code\/stream.c\r\ngcc -O3 -march=native -fopenmp stream.c -o stream\r\n# \u9488\u5bf9AMD EPYC\u5904\u7406\u5668\r\ngcc -O3 -march=znver2 -fopenmp stream.c -o stream<\/code><\/pre>\n<\/li>\n<li>\u8bbe\u7f6e\u6700\u4f18\u7ebf\u7a0b\u73af\u5883\u53d8\u91cf\uff1a\n<pre><code>export OMP_NUM_THREADS=`nproc`\r\nexport GOMP_CPU_AFFINITY=\"0-$((`nproc`-1))\"\r\n# \u9488\u5bf9NUMA\u7cfb\u7edf\r\nexport OMP_PROC_BIND=spread\r\nexport OMP_PLACES=cores<\/code><\/pre>\n<\/li>\n<li>\u6267\u884c\u591a\u6b21\u57fa\u51c6\u6d4b\u8bd5\uff1a\n<pre><code>for i in {1..3}; do .\/stream; sleep 30; done<\/code><\/pre>\n<\/li>\n<\/ol>\n<h3>2. Intel MLC\u6d4b\u8bd5<\/h3>\n<p>Intel MLC\u4e3a\u5185\u5b58\u5b50\u7cfb\u7edf\u6027\u80fd\u63d0\u4f9b\u66f4\u6df1\u5165\u7684\u89c1\u89e3\uff0c\u8fd9\u5bf9\u9999\u6e2f\u7684\u9ad8\u9891\u4ea4\u6613\u7cfb\u7edf\u5c24\u4e3a\u91cd\u8981\uff1a<\/p>\n<ul>\n<li>\u4e0d\u540c\u8bbf\u95ee\u6a21\u5f0f\u7684\u5e26\u5bbd\u6d4b\u91cf\uff1a\n<pre><code>.\/mlc --max_bandwidth --loaded_latency --idle_latency\r\n.\/mlc --peak_injection_bandwidth<\/code><\/pre>\n<\/li>\n<li>\u5177\u6709NUMA\u611f\u77e5\u7684\u5185\u5b58\u5ef6\u8fdf\u5206\u6790\uff1a\n<pre><code>.\/mlc --latency_matrix\r\n.\/mlc --c2c_latency<\/code><\/pre>\n<\/li>\n<li>\u7f13\u5b58\u5c42\u6b21\u7ed3\u6784\u6027\u80fd\u8bc4\u4f30\uff1a\n<pre><code>.\/mlc --cache_line_size\r\n.\/mlc --memory_map<\/code><\/pre>\n<\/li>\n<\/ul>\n<h2><strong>\u6d4b\u8bd5\u7ed3\u679c\u5206\u6790<\/strong><\/h2>\n<p>\u7406\u89e3\u6d4b\u8bd5\u7ed3\u679c\u9700\u8981\u4ed4\u7ec6\u5206\u6790\u591a\u4e2a\u6307\u6807\uff0c\u5e76\u8003\u8651\u9999\u6e2f\u7279\u5b9a\u7684\u5de5\u4f5c\u8d1f\u8f7d\u6a21\u5f0f\uff1a<\/p>\n<ul>\n<li>\u590d\u5236\u64cd\u4f5c\uff1a\u5e94\u8fbe\u5230\u7406\u8bba\u5e26\u5bbd\u768475-85%\n<ul>\n<li>DDR4-3200\uff1a\u6bcf\u901a\u9053\u9884\u671f\u7ea645-50 GB\/s<\/li>\n<li>DDR5-4800\uff1a\u6bcf\u901a\u9053\u9884\u671f\u7ea670-75 GB\/s<\/li>\n<\/ul>\n<\/li>\n<li>\u7f29\u653e\u64cd\u4f5c\uff1a\u901a\u5e38\u6bd4\u590d\u5236\u64cd\u4f5c\u4f4e5-10%\n<ul>\n<li>\u76d1\u63a7\u6e29\u5ea6\u9650\u5236\u5f71\u54cd<\/li>\n<li>\u68c0\u67e5NUMA\u5c40\u90e8\u6027\u6548\u5e94<\/li>\n<\/ul>\n<\/li>\n<li>\u52a0\u6cd5\u64cd\u4f5c\uff1a\u901a\u5e38\u6bd4\u590d\u5236\u64cd\u4f5c\u4f4e10-15%\n<ul>\n<li>\u5bf9\u6570\u636e\u5e93\u5de5\u4f5c\u8d1f\u8f7d\u81f3\u5173\u91cd\u8981<\/li>\n<li>\u5bf9\u5b9e\u65f6\u5206\u6790\u5f88\u91cd\u8981<\/li>\n<\/ul>\n<\/li>\n<li>Triad\u64cd\u4f5c\uff1a\u6700\u80fd\u4ee3\u8868\u5b9e\u9645\u6027\u80fd\n<ul>\n<li>\u6574\u4f53\u7cfb\u7edf\u8bc4\u4f30\u7684\u5173\u952e\u6307\u6807<\/li>\n<li>\u6027\u80fd\u76d1\u63a7\u7684\u57fa\u51c6<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>\u6027\u80fd\u4f18\u5316\u6280\u672f<\/strong><\/h2>\n<p>\u57fa\u4e8e\u6d4b\u8bd5\u7ed3\u679c\uff0c\u5b9e\u65bd\u4ee5\u4e0b\u4f18\u5316\u7b56\u7565\uff0c\u8fd9\u4e9b\u7b56\u7565\u5bf9\u9999\u6e2f\u7684\u9ad8\u6027\u80fd\u8ba1\u7b97\u9700\u6c42\u5c24\u5176\u91cd\u8981\uff1a<\/p>\n<ol>\n<li>BIOS\u4f18\u5316\uff1a\n<ul>\n<li>\u4e3a\u517c\u5bb9\u5185\u5b58\u542f\u7528XMP\u914d\u7f6e<\/li>\n<li>\u4f18\u5316\u5185\u5b58\u65f6\u5e8f\u8bbe\u7f6e\uff1a\n<ul>\n<li>tCL\uff08CAS\u5ef6\u8fdf\uff09<\/li>\n<li>tRCD\uff08RAS\u5230CAS\u5ef6\u8fdf\uff09<\/li>\n<li>tRP\uff08RAS\u9884\u5145\u7535\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u914d\u7f6e\u9002\u5f53\u7684NUMA\u8bbe\u7f6e\uff1a\n<ul>\n<li>\u8282\u70b9\u4ea4\u9519\u9009\u9879<\/li>\n<li>\u5185\u5b58\u4ea4\u9519\u6df1\u5ea6<\/li>\n<\/ul>\n<\/li>\n<li>\u7535\u6e90\u7ba1\u7406\u8bbe\u7f6e\uff1a\n<ul>\n<li>C-State\u63a7\u5236<\/li>\n<li>\u6027\u80fd\u72b6\u6001\u4f18\u5316<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u7ea7\u8c03\u4f18\uff1a\n<ul>\n<li>\u914d\u7f6e\u5927\u9875\u9762\uff1a\n<pre><code>echo always > \/sys\/kernel\/mm\/transparent_hugepage\/enabled\r\nsysctl -w vm.nr_hugepages=1024<\/code><\/pre>\n<\/li>\n<li>\u4f18\u5316\u8fdb\u7a0b\u8c03\u5ea6\uff1a\n<pre><code>sysctl -w kernel.sched_min_granularity_ns=10000000\r\nsysctl -w kernel.sched_wakeup_granularity_ns=15000000<\/code><\/pre>\n<\/li>\n<li>\u8c03\u6574\u5185\u5b58\u7ba1\u7406\u53c2\u6570\uff1a\n<pre><code>sysctl -w vm.swappiness=10\r\nsysctl -w vm.dirty_ratio=40<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2><strong>\u5e38\u89c1\u95ee\u9898\u6392\u67e5<\/strong><\/h2>\n<p>\u5728\u9999\u6e2f\u670d\u52a1\u5668\u4e0a\u6d4b\u8bd5\u5185\u5b58\u5e26\u5bbd\u65f6\uff0c\u4f60\u53ef\u80fd\u4f1a\u9047\u5230\u8fd9\u4e9b\u6280\u672f\u6311\u6218\uff0c\u7279\u522b\u662f\u8003\u8651\u5230\u8be5\u5730\u533a\u7684\u73af\u5883\u6761\u4ef6\uff1a<\/p>\n<ul>\n<li>\u7ed3\u679c\u4e0d\u4e00\u81f4\uff1a\n<pre><code># \u6e05\u9664\u7cfb\u7edf\u7f13\u5b58\r\necho 3 > \/proc\/sys\/vm\/drop_caches\r\nsystemctl stop mysqld nginx\r\n# \u76d1\u63a7\u6e29\u5ea6\u72b6\u51b5\r\nsensors | grep \"Core\"\r\n# \u68c0\u67e5\u5185\u5b58\u9519\u8bef\r\nsudo dmidecode -t memory | grep -i error<\/code><\/pre>\n<\/li>\n<li>\u6027\u80fd\u964d\u7ea7\uff1a\n<pre><code># \u76d1\u63a7CPU\u9891\u7387\u8c03\u8282\r\ncat \/proc\/cpuinfo | grep \"MHz\"\r\nlscpu | grep \"MHz\"\r\n# \u68c0\u67e5\u6e29\u5ea6\u9650\u5236\r\nturbostat --debug sleep 10\r\n# \u76d1\u63a7\u5185\u5b58\u63a7\u5236\u5668\u72b6\u6001\r\nperf stat -e uncore_imc\/data_reads\/,uncore_imc\/data_writes\/ sleep 10<\/code><\/pre>\n<\/li>\n<\/ul>\n<h2><strong>\u9ad8\u7ea7\u6027\u80fd\u76d1\u63a7<\/strong><\/h2>\n<p>\u5b9e\u65bd\u4ee5\u4e0b\u76d1\u63a7\u5b9e\u8df5\u4ee5\u6301\u7eed\u4f18\u5316\uff0c\u8fd9\u5bf9\u4fdd\u6301\u9999\u6e2f\u5feb\u8282\u594f\u5546\u4e1a\u73af\u5883\u4e2d\u7684\u7ade\u4e89\u4f18\u52bf\u81f3\u5173\u91cd\u8981\uff1a<\/p>\n<ol>\n<li>\u7cfb\u7edf\u6307\u6807\u6536\u96c6\uff1a\n<ul>\n<li>\u5185\u5b58\u5e26\u5bbd\u5229\u7528\u7387\u8ddf\u8e2a\uff1a\n<pre><code>perf stat -e cpu\/event=0xbb,umask=0x1,name=DEMAND_DATA_RD\/ -a<\/code><\/pre>\n<\/li>\n<li>\u7f13\u5b58\u547d\u4e2d\/\u672a\u547d\u4e2d\u7387\u76d1\u63a7\uff1a\n<pre><code>perf stat -e cache-misses,cache-references,L1-dcache-loads,L1-dcache-load-misses -a<\/code><\/pre>\n<\/li>\n<li>\u5185\u5b58\u63a7\u5236\u5668\u961f\u5217\u6df1\u5ea6\u5206\u6790\uff1a\n<pre><code>perf stat -e uncore_imc\/cas_count_read\/,uncore_imc\/cas_count_write\/ -a<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u6027\u80fd\u57fa\u51c6\u5efa\u7acb\uff1a\n<pre><code># \u7efc\u5408\u6027\u80fd\u57fa\u51c6\r\nperf stat -e cache-misses,cache-references,bus-cycles,instructions,cpu-cycles -a sleep 10\r\n# \u5185\u5b58\u63a7\u5236\u5668\u7edf\u8ba1\r\nperf stat -e uncore_imc_free_running\/data_reads\/,uncore_imc_free_running\/data_writes\/ sleep 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\u6d4b\u8bd5\u524d\u51c6\u5907\u548c\u8981\u6c42 \u5728\u5f00\u59cb\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\u4e4b\u524d\uff0c\u786e\u4fdd\u6b63\u786e\u8bbe\u7f6e\u5bf9\u4e8e\u83b7\u5f97\u51c6\u786e\u7ed3\u679c\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u6240\u9700\u5185\u5bb9\uff1a \u9999\u6e2f\u670d\u52a1\u5668\u7684root\u8bbf\u95ee\u6743\u9650 \u6e05\u6d01\u7684\u6d4b\u8bd5\u73af\u5883\uff08\u6700\u5c11\u7684\u540e\u53f0\u8fdb\u7a0b\uff09 \u6700\u65b0\u7248\u672c\u7684\u6d4b\u8bd5\u5de5\u5177 \u7cfb\u7edf\u76d1\u63a7\u5de5\u5177 \u6027\u80fd\u57fa\u51c6\u6587\u6863 \u5185\u5b58\u89c4\u683c\u8be6\u60c5\uff08DDR4\/DDR5\u3001\u9891\u7387\u3001\u65f6\u5e8f\uff09 CPU\u62d3\u6251\u4fe1\u606f\uff08\u6838\u5fc3\u6570\u91cf\u3001NUMA\u8282\u70b9\uff09 \u6e29\u5ea6\u76d1\u63a7\u5de5\u5177\uff08\u5728\u9999\u6e2f\u6c14\u5019\u6761\u4ef6\u4e0b\u5c24\u4e3a\u91cd\u8981\uff09 \u6838\u5fc3\u6d4b\u8bd5\u5de5\u5177\u6982\u8ff0 \u4e3a\u4e86\u8fdb\u884c\u5168\u9762\u7684\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\uff0c\u6211\u4eec\u5c06\u91cd\u70b9\u5173\u6ce8\u4e09\u4e2a\u4e3b\u8981\u5de5\u5177\uff0c\u6bcf\u4e2a\u5de5\u5177\u90fd\u670d\u52a1\u4e8e\u7279\u5b9a\u7684\u6d4b\u8bd5\u76ee\u7684\uff1a STREAM Benchmark: \u5185\u5b58\u5e26\u5bbd\u6d4b\u91cf\u7684\u884c\u4e1a\u6807\u51c6 \u63d0\u4f9b\u4e00\u81f4\u7684\u8de8\u5e73\u53f0\u7ed3\u679c \u652f\u6301\u591a\u7ebf\u7a0b\u6d4b\u8bd5\u573a\u666f \u975e\u5e38\u9002\u5408DDR4\/DDR5\u5bf9\u6bd4\u6d4b\u8bd5 Intel\u5185\u5b58\u5ef6\u8fdf\u68c0\u67e5\u5668 (MLC): \u8be6\u7ec6\u7684\u5185\u5b58\u5b50\u7cfb\u7edf\u5206\u6790 \u7f13\u5b58\u5230\u5185\u5b58\u4f20\u8f93\u6d4b\u91cf NUMA\u62d3\u6251\u6d4b\u8bd5\u529f\u80fd \u5185\u5b58\u63a7\u5236\u5668\u6027\u80fd\u5206\u6790 Sysbench: \u591a\u7ebf\u7a0b\u57fa\u51c6\u6d4b\u8bd5\u5957\u4ef6 \u771f\u5b9e\u5de5\u4f5c\u8d1f\u8f7d\u6a21\u62df \u5185\u5b58\u8bbf\u95ee\u6a21\u5f0f\u5206\u6790 \u4e0e\u76d1\u63a7\u7cfb\u7edf\u96c6\u6210 \u9010\u6b65\u6d4b\u8bd5\u6d41\u7a0b \u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u4f7f\u7528\u6838\u5fc3\u5de5\u5177\u8fdb\u884c\u5185\u5b58\u5e26\u5bbd\u6d4b\u8bd5\u7684\u6280\u672f\u5b9e\u73b0\uff0c\u5e76\u7279\u522b\u8003\u8651\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u73af\u5883\u7684\u7279\u70b9\u3002 1. STREAM Benchmark\u5b9e\u65bd STREAM benchmark\u63d0\u4f9b\u56db\u4e2a\u5173\u952e\u7684\u5411\u91cf\u8fd0\u7b97\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4ee5\u6700\u4f73\u914d\u7f6e\u6267\u884c\u5b83\u4eec\uff1a \u4e0b\u8f7d\u5e76\u4f7f\u7528\u4f18\u5316\u7f16\u8bd1STREAM\uff1a wget http:\/\/www.cs.virginia.edu\/stream\/FTP\/Code\/stream.c gcc -O3 -march=native -fopenmp stream.c -o stream # \u9488\u5bf9AMD EPYC\u5904\u7406\u5668 gcc -O3 -march=znver2 -fopenmp stream.c [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-cn\/knowledge\/how-to-test-memory-bandwidth-limits-on-hong-kong-servers\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":24189,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80],"tags":[],"class_list":["post-24193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5982\u4f55\u6d4b\u8bd5\u9999\u6e2f\u670d\u52a1\u5668\u7684\u5185\u5b58\u5e26\u5bbd\u9650\u5236<\/title>\n<meta name=\"description\" content=\"\u5b66\u4e60\u5982\u4f55\u4f7f\u7528STREAM Benchmark\u3001Intel MLC\u548csysbench\u51c6\u786e\u6d4b\u8bd5\u548c\u4f18\u5316\u9999\u6e2f\u670d\u52a1\u5668\u7684\u5185\u5b58\u5e26\u5bbd\u3002\u5305\u542b\u6027\u80fd\u8c03\u4f18\u6280\u5de7\u7684\u5b8c\u6574\u6307\u5357\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, 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