{"id":34710,"date":"2026-08-01T08:00:13","date_gmt":"2026-08-01T00:00:13","guid":{"rendered":"https:\/\/www.varidata.com\/?p=34710"},"modified":"2026-07-31T15:08:52","modified_gmt":"2026-07-31T07:08:52","slug":"the-ram-refresh-cycle-latency-impact-on-server-performance","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-cn\/blog\/the-ram-refresh-cycle-latency-impact-on-server-performance\/","title":{"rendered":"RAM \u5237\u65b0\u5468\u671f\u5bf9\u670d\u52a1\u5668\u6027\u80fd\u7684\u5ef6\u8fdf\u5f71\u54cd"},"content":{"rendered":"<p>DRAM \u5237\u65b0\u5468\u671f\u4f1a\u76f4\u63a5\u5f71\u54cd\u73b0\u4ee3\u4f01\u4e1a\u7ea7<a href=\"https:\/\/www.varidata.com\/zh-cn\/server\/los-angeles\/\" target=\"_blank\">\u670d\u52a1\u5668\u5185\u5b58<\/a>\u7684\u5ef6\u8fdf\u8868\u73b0\u3002\u5185\u5b58\u63a7\u5236\u5668\u4f1a\u5b9a\u671f\u53d1\u51fa\u5237\u65b0\u547d\u4ee4\uff0c\u4ee5\u4fdd\u6301\u7535\u5bb9\u5355\u5143\u4e2d\u7684\u7535\u8377\u3002\u4e8e\u8fd9\u4e9b\u884c\u5237\u65b0\u5468\u671f\u65f6\u95f4\uff08tRFC\uff09\u95f4\u9694\u671f\u95f4\uff0c\u5185\u5b58\u63a7\u5236\u5668\u4f1a\u9501\u5b9a\u76ee\u6807\u5185\u5b58\u5b58\u50a8\u4f53\uff0c\u5e76\u7acb\u5373\u963b\u585e\u4f20\u5165\u7684\u8bfb\u5199\u8bf7\u6c42\u3002\u8fd9\u4e9b\u8fd0\u884c\u505c\u987f\u4f1a\u5f62\u6210\u663e\u8457\u7684\u786c\u4ef6\u6267\u884c\u74f6\u9888\u3002\u6807\u51c6<a href=\"https:\/\/www.varidata.com\/zh-cn\/blog\/the-impact-on-gameplay-of-packet-loss-versus-high-latency\/\" target=\"_blank\">\u5185\u5b58\u5ef6\u8fdf<\/a>\u57fa\u51c6\u6d4b\u8bd5\u6240\u62a5\u544a\u7684\u6570\u636e\uff0c\u672c\u8eab\u5df2\u5c06\u8fd9\u4e9b\u5468\u671f\u6027\u5237\u65b0\u5ef6\u8fdf\u8ba1\u5165\u57fa\u7ebf\u6d4b\u91cf\u4e4b\u4e2d\u3002\u56e0\u6b64\uff0cCPU \u7ebf\u7a0b\u4f1a\u53cd\u590d\u6682\u505c\u6267\u884c\uff0c\u7b49\u5f85\u88ab\u963b\u585e\u7684\u5185\u5b58\u901a\u9053\u91cd\u65b0\u5f00\u653e\u3002<\/p>\n<h2>DRAM \u5237\u65b0\u673a\u5236\u4e0e\u5185\u5b58\u505c\u987f<\/h2>\n<h3>\u5237\u65b0\u547d\u4ee4\u5982\u4f55\u9501\u5b9a DRAM \u5b58\u50a8\u4f53<\/h3>\n<p>DRAM \u5355\u5143\u4e2d\u7684\u7535\u8377\u4f1a\u968f\u7740\u65f6\u95f4\u63a8\u79fb\u800c\u6d41\u5931\u3002\u5185\u5b58\u63a7\u5236\u5668\u5fc5\u987b\u53d1\u51fa\u5468\u671f\u6027\u5237\u65b0\u547d\u4ee4\uff0c\u4ee5\u6062\u590d\u8fd9\u4e9b\u6d41\u5931\u7684\u7535\u8377\u3002\u5728\u6267\u884c\u5237\u65b0\u64cd\u4f5c\u671f\u95f4\uff0c\u63a7\u5236\u5668\u4f1a\u9501\u5b9a\u7279\u5b9a\u7684\u5185\u5b58\u5b58\u50a8\u4f53\u3002\u8fd9\u79cd\u786c\u4ef6\u7ea7\u9501\u5b9a\u4f1a\u7acb\u5373\u963b\u585e\u4f20\u5165\u7684\u8bfb\u5199\u8bf7\u6c42\u3002<\/p>\n<blockquote>\n<p><strong>\u5173\u952e\u8981\u70b9<\/strong>\uff1a\u88ab\u9501\u5b9a\u7684 DRAM \u5b58\u50a8\u4f53\u65e0\u6cd5\u5904\u7406 CPU \u7684\u6570\u636e\u8bf7\u6c42\u3002\u7cfb\u7edf\u5fc5\u987b\u5c06\u6240\u6709\u53d1\u5f80\u8be5\u5b58\u50a8\u4f53\u7684\u64cd\u4f5c\u6392\u961f\uff0c\u6216\u76f4\u63a5\u4f7f\u5176\u505c\u987f\uff0c\u76f4\u5230\u8be5\u5237\u65b0\u5468\u671f\u7ed3\u675f\u3002<\/p>\n<\/blockquote>\n<h3>\u5728 tRFC \u4e0e tREFI \u4e4b\u95f4\u5e73\u8861\u5904\u7406\u65f6\u95f4<\/h3>\n<p>\u6709\u4e24\u4e2a\u5173\u952e\u65f6\u5e8f\u53c2\u6570\u51b3\u5b9a\u5185\u5b58\u5237\u65b0\u64cd\u4f5c\u7684\u884c\u4e3a\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u884c\u5237\u65b0\u5468\u671f\u65f6\u95f4\uff08tRFC\uff09<\/strong>\uff1a\u8be5\u53c2\u6570\u8868\u793a\u4e00\u6b21\u5237\u65b0\u547d\u4ee4\u671f\u95f4\uff0cDRAM \u5b58\u50a8\u4f53\u4fdd\u6301\u4e0d\u53ef\u7528\u7684\u7cbe\u786e\u65f6\u957f\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5237\u65b0\u95f4\u9694\uff08tREFI\uff09<\/strong>\uff1a\u8be5\u53c2\u6570\u5b9a\u4e49\u8fde\u7eed\u4e24\u6b21\u5237\u65b0\u547d\u4ee4\u4e4b\u95f4\u6240\u5141\u8bb8\u7684\u6700\u5927\u65f6\u95f4\u95f4\u9694\u3002<\/p>\n<\/li>\n<\/ul>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n    <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u53c2\u6570<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u4f5c\u7528<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5ef6\u8fdf\u5f71\u54cd<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p><strong>tRFC<\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5b58\u50a8\u4f53\u9501\u5b9a\u6301\u7eed\u65f6\u95f4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>tRFC \u8d8a\u9ad8\uff0c\u6267\u884c\u505c\u987f\u65f6\u95f4\u8d8a\u957f<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p><strong>tREFI<\/strong><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5237\u65b0\u5468\u671f\u4e4b\u95f4\u7684\u65f6\u95f4\u95f4\u9694<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>tREFI \u8d8a\u4f4e\uff0c\u505c\u987f\u53d1\u751f\u8d8a\u9891\u7e41<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u7cfb\u7edf\u7a33\u5b9a\u6027\u8981\u6c42\u5728\u8fd9\u4e9b\u8bbe\u7f6e\u4e4b\u95f4\u5b9e\u73b0\u7cbe\u786e\u5e73\u8861\u3002\u66f4\u77ed\u7684\u5237\u65b0\u95f4\u9694\u6709\u52a9\u4e8e\u9632\u6b62\u6570\u636e\u635f\u574f\uff0c\u4f46\u66f4\u9891\u7e41\u7684\u5237\u65b0\u4f1a\u589e\u52a0\u8ba1\u7b97\u64cd\u4f5c\u7684\u6574\u4f53\u5ef6\u8fdf\u5f71\u54cd\u3002<\/p>\n<h3>\u5237\u65b0\u5468\u671f\u671f\u95f4\u5185\u5b58\u63a7\u5236\u5668\u7684\u884c\u4e3a<\/h3>\n<p>\u73b0\u4ee3\u5185\u5b58\u63a7\u5236\u5668\u901a\u8fc7\u6df1\u5ea6\u6267\u884c\u961f\u5217\u6765\u5904\u7406\u5927\u91cf\u8bf7\u6c42\u3002\u5f53\u5237\u65b0\u5468\u671f\u89e6\u53d1\u65f6\uff0c\u63a7\u5236\u5668\u4f1a\u6682\u505c\u5411\u6d3b\u52a8\u5b58\u50a8\u4f53\u4e0b\u53d1\u547d\u4ee4\u3002\u6765\u81ea\u5904\u7406\u5668\u7684\u65b0\u8bf7\u6c42\u4f1a\u8fc5\u901f\u586b\u6ee1\u5185\u90e8\u961f\u5217\u3002<\/p>\n<p>\u73b0\u4ee3 DDR4 \u4e0e DDR5 \u6a21\u7ec4\u4e2d\u7684\u9ad8\u5bc6\u5ea6\u6269\u5c55\u8fdb\u4e00\u6b65\u52a0\u5267\u4e86\u8fd9\u4e00\u95ee\u9898\u3002\u66f4\u9ad8\u5bb9\u91cf\u7684\u82af\u7247\u4f1a\u5728\u5355\u4e00\u88f8\u7247\u4e0a\u96c6\u6210\u66f4\u591a\u5b58\u50a8\u5355\u5143\u3002\u66f4\u591a\u7684\u5355\u5143\u6570\u91cf\u610f\u5473\u7740\u5237\u65b0\u6240\u6709\u884c\u6240\u9700\u7684 tRFC \u6301\u7eed\u65f6\u95f4\u663e\u8457\u589e\u52a0\u3002\u56e0\u6b64\uff0c\u9ad8\u5bc6\u5ea6\u670d\u52a1\u5668\u5185\u5b58\u4f1a\u62c9\u957f\u6267\u884c\u505c\u987f\u65f6\u95f4\u3002\u8fd9\u4e9b\u66f4\u957f\u7684\u505c\u987f\u4f1a\u66f4\u9891\u7e41\u5730\u963b\u585e CPU \u6307\u4ee4\u6d41\u6c34\u7ebf\uff0c\u964d\u4f4e\u4f01\u4e1a\u7ea7\u9ad8\u8d1f\u8f7d\u5de5\u4f5c\u573a\u666f\u4e0b\u7684\u603b\u4f53\u7cfb\u7edf\u541e\u5410\u91cf\u3002<\/p>\n<h2>\u91cf\u5316\u5237\u65b0\u5ef6\u8fdf\u5bf9\u4f01\u4e1a\u5de5\u4f5c\u8d1f\u8f7d\u7684\u5f71\u54cd<\/h2>\n<p>\u6807\u51c6\u5185\u5b58\u57fa\u51c6\u5206\u6570\u5df2\u7ecf\u5305\u542b\u5468\u671f\u6027 DRAM \u505c\u987f\u6240\u5e26\u6765\u7684\u7d2f\u8ba1\u5ef6\u8fdf\u5f71\u54cd\u3002\u7136\u800c\uff0c\u5e73\u5747\u5ef6\u8fdf\u6307\u6807\u5f80\u5f80\u4f1a\u63a9\u76d6\u4e0d\u53ef\u9884\u6d4b\u7684\u5904\u7406\u5ef6\u8fdf\u3002\u5728\u5b9e\u9645\u5237\u65b0\u8fc7\u7a0b\u4e2d\uff0c\u77ed\u6682\u7684\u5b58\u50a8\u4f53\u9501\u5b9a\u7ecf\u5e38\u4f1a\u8f6c\u5316\u4e3a\u4e25\u91cd\u7684\u5e94\u7528\u5c42\u6027\u80fd\u4e0b\u964d\u3002<\/p>\n<h3>\u5bf9\u5185\u5b58\u6570\u636e\u5e93\u7684\u5ef6\u8fdf\u5f71\u54cd<\/h3>\n<p>\u50cf Redis \u8fd9\u6837\u7684\u5185\u5b58\u6570\u636e\u5e93\u5f15\u64ce\uff0c\u4f1a\u5c06\u6574\u4e2a\u6d3b\u52a8\u6570\u636e\u96c6\u76f4\u63a5\u5b58\u653e\u5728\u7269\u7406 RAM \u4e2d\u3002\u8fd9\u7c7b\u67b6\u6784\u4f9d\u8d56\u77ac\u65f6\u4e14\u786e\u5b9a\u6027\u7684\u8bfb\u5199\u8bbf\u95ee\u65f6\u95f4\u3002\u5f53\u5185\u5b58\u63a7\u5236\u5668\u53d1\u51fa\u5237\u65b0\u547d\u4ee4\u65f6\uff0c\u76ee\u6807\u5185\u5b58\u5b58\u50a8\u4f53\u4f1a\u7acb\u5373\u88ab\u9501\u5b9a\u3002\u7cfb\u7edf\u5c06\u6240\u6709\u4f20\u5165\u7684\u952e\u503c\u8bf7\u6c42\u6392\u961f\u3002\u8fd9\u4e9b\u5fae\u79d2\u7ea7\u505c\u987f\u4f1a\u5728\u6570\u767e\u4e07\u6b21\u64cd\u4f5c\u4e2d\u4e0d\u65ad\u7d2f\u79ef\uff0c\u4ece\u800c\u964d\u4f4e\u6570\u636e\u5e93\u7684\u6574\u4f53\u541e\u5410\u91cf\u3002<\/p>\n<h3>\u9ad8\u9891\u5206\u6790\u4e2d\u7684\u5c3e\u5ef6\u8fdf\u4e0e\u6296\u52a8<\/h3>\n<p>\u9ad8\u9891\u5206\u6790\u5e73\u53f0\u4f9d\u8d56\u7a33\u5b9a\u4e00\u81f4\u7684\u6267\u884c\u65f6\u5e8f\u3002\u5468\u671f\u6027\u5237\u65b0\u4f1a\u5f15\u5165\u8fd0\u884c\u6296\u52a8\uff0c\u4f7f\u539f\u672c\u7a33\u5b9a\u7684\u57fa\u7840\u8bbf\u95ee\u65f6\u95f4\u6f14\u53d8\u4e3a\u5f02\u5e38\u7684\u6267\u884c\u5ef6\u8fdf\u3002\u8fd9\u4e9b\u505c\u987f\u4f1a\u76f4\u63a5\u63a8\u9ad8 p99 \u4e0e p99.9 \u5c3e\u5ef6\u8fdf\u5cf0\u503c\u3002<\/p>\n<div class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 100px\">\n<colgroup>\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n<col style=\"min-width: 25px\">\n    <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u53c2\u6570 \/ \u6307\u6807<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6807\u51c6\u72b6\u6001<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5237\u65b0\u505c\u987f\u4e8b\u4ef6<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5bf9\u5c3e\u5ef6\u8fdf\u7684\u5f71\u54cd<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5185\u5b58\u5355\u5143\u72b6\u6001<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6b63\u5e38\u6570\u636e\u8bbf\u95ee<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5468\u671f\u6027\u5237\u65b0\uff08tREFI \u7ea6\u4e3a 7.8 \u00b5s\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u82af\u7247\u6682\u65f6\u4e0d\u53ef\u7528<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5ef6\u8fdf\u65f6\u957f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>50\u2013100 \u7eb3\u79d2<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7ea6 350 \u7eb3\u79d2<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u505c\u987f\u4f1a\u5e26\u6765\u5de8\u5927\u7684\u7b49\u5f85\u5ef6\u8fdf<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u505c\u987f\u6982\u7387<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u57fa\u7ebf\u8bbf\u95ee<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6bcf\u901a\u9053\/\u5b58\u50a8\u4f53\u7ea6 0.5%<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u9ad8\u541e\u5410\u573a\u666f\u4e0b\u5fc5\u7136\u9891\u7e41\u51fa\u73b0\u5ef6\u8fdf<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5ef6\u8fdf\u5206\u5e03<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6807\u79f0\u8bbf\u95ee\u65f6\u95f4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e3b\u5bfc p99 \u548c p99.9<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5f62\u6210\u4e25\u91cd\u7684\u957f\u5c3e\u5206\u5e03<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7cfb\u7edf\u5f71\u54cd<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5b9e\u65f6\u6267\u884c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5fae\u79d2\u7ea7\u5ef6\u8fdf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5bfc\u81f4\u9519\u5931\u4ea4\u6613\u673a\u4f1a<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>\u865a\u62df\u5316\u670d\u52a1\u5668\u4e2d\u7684\u5185\u5b58\u603b\u7ebf\u4e89\u7528<\/h3>\n<p>\u865a\u62df\u5316 Hypervisor \u4f1a\u5c06\u6570\u5341\u4e2a\u865a\u62df\u673a\u590d\u7528\u5230\u5171\u4eab\u5185\u5b58\u901a\u9053\u4e4b\u4e0a\u3002\u591a\u4e2a CPU \u6838\u5fc3\u4f1a\u540c\u65f6\u5411\u5185\u5b58\u63a7\u5236\u5668\u63a8\u9001\u5e76\u53d1\u8bf7\u6c42\u961f\u5217\u3002\u5237\u65b0\u5468\u671f\u4f1a\u6682\u505c\u6d3b\u52a8\u5b58\u50a8\u4f53\u4e0a\u7684\u603b\u7ebf\u4e8b\u52a1\uff0c\u8feb\u4f7f\u786c\u4ef6\u961f\u5217\u79ef\u538b\u540e\u7eed\u547d\u4ee4\u3002\u8fd9\u79cd\u901a\u9053\u4e89\u7528\u4f1a\u589e\u52a0\u8fd0\u884c\u5ef6\u8fdf\uff0c\u5e76\u5c06\u5ef6\u8fdf\u5f71\u54cd\u653e\u5927\u5230\u6240\u6709\u5171\u7f6e\u7684\u865a\u62df\u5316\u5de5\u4f5c\u8d1f\u8f7d\u4e0a\u3002<\/p>\n<h2>\u7f13\u89e3\u7b56\u7565\u4e0e\u914d\u7f6e\u8c03\u4f18<\/h2>\n<h3>\u5728\u670d\u52a1\u5668 BIOS \u4e2d\u4f18\u5316 tRFC \u4e0e tREFI<\/h3>\n<p>\u7cfb\u7edf\u7ba1\u7406\u5458\u53ef\u4ee5\u76f4\u63a5\u5728\u670d\u52a1\u5668 BIOS \u4e2d\u8c03\u6574\u7279\u5b9a\u7684\u5185\u5b58\u65f6\u5e8f\u53c2\u6570\u3002\u63d0\u9ad8\u5237\u65b0\u95f4\u9694\uff08tREFI\uff09\u53ef\u63a8\u8fdf\u5237\u65b0\u5468\u671f\u7684\u53d1\u751f\uff0c\u4ece\u800c\u51cf\u5c11\u6267\u884c\u505c\u987f\u7684\u9891\u7387\u3002\u7136\u800c\uff0c\u66f4\u9ad8\u7684\u73af\u5883\u8fd0\u884c\u6e29\u5ea6\u4f1a\u52a0\u901f\u5355\u5143\u7535\u8377\u6d41\u5931\u3002\u56e0\u6b64\uff0c\u5728\u653e\u5bbd tREFI \u4e0a\u9650\u65f6\uff0c\u7ba1\u7406\u5458\u5fc5\u987b\u7ef4\u6301\u79ef\u6781\u6709\u6548\u7684\u673a\u7bb1\u6563\u70ed\u3002<\/p>\n<blockquote>\n<p><strong>\u8b66\u544a<\/strong>\uff1a\u8fc7\u5ea6\u4f18\u5316 tRFC \u6216 tREFI \u53c2\u6570\u53ef\u80fd\u5bfc\u81f4\u9759\u9ed8\u6570\u636e\u635f\u574f\u3002\u7cfb\u7edf\u5de5\u7a0b\u5e08\u5fc5\u987b\u8fd0\u884c\u4e25\u683c\u7684\u538b\u529b\u6d4b\u8bd5\uff0c\u4f8b\u5982 <code>memtest86+<\/code>\u3002<\/p>\n<\/blockquote>\n<h3>\u5229\u7528\u7ec6\u7c92\u5ea6\u5237\u65b0\u7f13\u89e3\u5ef6\u8fdf\u5f71\u54cd<\/h3>\n<p>\u73b0\u4ee3 DDR5 \u5185\u5b58\u6a21\u7ec4\u5f15\u5165\u4e86\u7ec6\u7c92\u5ea6\u5237\u65b0\uff08Fine-Grained Refresh\uff0cFGR\uff09\u6a21\u5f0f\uff0c\u4ee5\u5c3d\u91cf\u964d\u4f4e\u8fd0\u884c\u5ef6\u8fdf\u3002\u4e0e\u4e00\u6b21\u6027\u9501\u5b9a\u5168\u90e8\u5b58\u50a8\u4f53\u7ec4\u7684\u4f20\u7edf\u65b9\u5f0f\u4e0d\u540c\uff0cFGR \u4f1a\u5c06\u5237\u65b0\u547d\u4ee4\u62c6\u5206\u4e3a\u66f4\u5c0f\u3001\u5206\u5e03\u66f4\u5747\u5300\u7684\u64cd\u4f5c\u3002<\/p>\n<ul>\n<li>\n<p><strong>\u6807\u51c6\u5237\u65b0\uff081x\uff09<\/strong>\uff1a\u66f4\u957f\u65f6\u95f4\u5730\u9501\u5b9a\u5b8c\u6574\u5b58\u50a8\u4f53\u7ec4\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7ec6\u7c92\u5ea6\u5237\u65b0\uff082x\/4x\uff09<\/strong>\uff1a\u4ee5 2 \u500d\u6216 4 \u500d\u9891\u7387\u53d1\u51fa\u66f4\u77ed\u7684\u5237\u65b0\u5468\u671f\u3002<\/p>\n<\/li>\n<\/ul>\n<pre><code>\u6807\u51c6\u5237\u65b0\uff081x\uff09 : [--- \u8f83\u957f\u7684\u5b58\u50a8\u4f53\u9501\u5b9a ---][--- \u6570\u636e\u5904\u7406 ---]\r\n\u7ec6\u7c92\u5ea6\u5237\u65b0\uff084x\uff09: [-\u9501\u5b9a-][ \u5904\u7406\u4e2d ][-\u9501\u5b9a-][ \u5904\u7406\u4e2d ]<\/code><\/pre>\n<p>\u66f4\u77ed\u7684\u9501\u5b9a\u65f6\u95f4\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u961f\u5217\u7b49\u5f85\u5cf0\u503c\u3002\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u9632\u6b62\u5185\u5b58\u63a7\u5236\u5668\u961f\u5217\u5f62\u6210\u5927\u89c4\u6a21\u79ef\u538b\uff0c\u4ece\u800c\u51cf\u8f7b\u5e94\u7528\u7ebf\u7a0b\u6240\u611f\u53d7\u5230\u7684\u5ef6\u8fdf\u5f71\u54cd\u3002<\/p>\n<h3>NUMA \u67b6\u6784\u4e0e\u9875\u5206\u914d\u7b56\u7565<\/h3>\n<p>\u5728\u591a\u8def\u670d\u52a1\u5668\u4e2d\uff0c\u975e\u7edf\u4e00\u5185\u5b58\u8bbf\u95ee\uff08NUMA\uff09\u62d3\u6251\u5bf9\u4e8e\u7ba1\u7406\u5185\u5b58\u505c\u987f\u81f3\u5173\u91cd\u8981\u3002\u5f53\u67d0\u4e2a\u672c\u5730\u63d2\u69fd\u4e0a\u7684\u5185\u5b58\u63a7\u5236\u5668\u89e6\u53d1\u5237\u65b0\u65f6\uff0c\u8fdc\u7aef\u6838\u5fc3\u4f1a\u906d\u9047\u53e0\u52a0\u540e\u7684\u8bbf\u95ee\u5ef6\u8fdf\u3002<\/p>\n<p>\u5de5\u7a0b\u5e08\u53ef\u901a\u8fc7\u914d\u7f6e Linux \u5185\u6838\u8bbe\u7f6e\u6765\u9694\u79bb\u5185\u5b58\u6d41\u91cf\uff1a<\/p>\n<ol>\n<li>\n<p>\u5bf9\u5206\u5e03\u5f0f\u5de5\u4f5c\u8d1f\u8f7d\u542f\u7528 NUMA \u611f\u77e5\u578b\u5185\u5b58\u5206\u914d\uff0c\u4f8b\u5982\u4f7f\u7528 <code>numactl --interleave=all<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u5206\u914d\u5927\u9875\uff08<code>HugeTLB<\/code>\uff09\uff0c\u4ee5\u51cf\u5c11\u5237\u65b0\u95f4\u9694\u671f\u95f4\u7684\u8f6c\u6362\u540e\u5907\u7f13\u51b2\u533a\uff08TLB\uff09\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n<li>\n<p>\u901a\u8fc7\u7ebf\u7a0b\u4eb2\u548c\u6027\u8bbe\u7f6e\uff0c\u5c06\u5bf9\u5ef6\u8fdf\u654f\u611f\u7684\u5e94\u7528\u7ebf\u7a0b\u56fa\u5b9a\u5230\u7279\u5b9a CPU \u6838\u5fc3\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u7b56\u7565\u6027\u914d\u7f6e\u8c03\u6574\u80fd\u591f\u4f18\u5316\u6570\u636e\u8def\u5f84\u3001\u51cf\u5c11\u901a\u9053\u4e32\u6270\uff0c\u5e76\u6700\u5927\u5316\u73b0\u4ee3\u4f01\u4e1a\u7ea7\u786c\u4ef6\u4e0a\u7684\u603b\u4f53\u8ba1\u7b97\u541e\u5410\u91cf\u3002<\/p>\n<div class=\"qc-divider-wrapper\">\n<div class=\"qc-divider\" style=\"border-top-style: solid;width: 100%\"><\/div>\n<\/div>\n<p>\u73b0\u4ee3\u4f01\u4e1a\u7cfb\u7edf\u5fc5\u987b\u5728\u5185\u5b58\u5bc6\u5ea6\u3001\u8fd0\u884c\u53ef\u9760\u6027\u4e0e\u6267\u884c\u5ef6\u8fdf\u4e4b\u95f4\u53d6\u5f97\u5e73\u8861\u3002\u66f4\u9ad8\u7684 DRAM \u5bb9\u91cf\u4f1a\u589e\u52a0\u5237\u65b0\u505c\u987f\uff0c\u4ece\u800c\u8feb\u4f7f\u7cfb\u7edf\u5728\u603b\u5b58\u50a8\u5bb9\u91cf\u4e0e\u5fae\u79d2\u7ea7\u6027\u80fd\u4e4b\u95f4\u4f5c\u51fa\u8270\u96be\u53d6\u820d\u3002\u7cfb\u7edf\u67b6\u6784\u5e08\u5fc5\u987b\u4e3b\u52a8\u4f18\u5316\u65f6\u5e8f\u53c2\u6570\uff0c\u4ee5\u5c3d\u91cf\u51cf\u5c11\u6d41\u6c34\u7ebf\u74f6\u9888\u3002<\/p>\n<p><strong>\u7cfb\u7edf\u67b6\u6784\u5e08\u5ba1\u8ba1\u6e05\u5355<\/strong>\uff1a<\/p>\n<p><strong>\u6838\u67e5 BIOS \u65f6\u5e8f<\/strong>\uff1a\u5ba1\u67e5\u5404\u670d\u52a1\u5668\u8282\u70b9\u7684\u57fa\u7ebf tRFC \u4e0e tREFI \u914d\u7f6e\u3002<\/p>\n<p><strong>\u542f\u7528\u7ec6\u7c92\u5ea6\u5237\u65b0<\/strong>\uff1a\u5728 DDR5 \u6a21\u7ec4\u4e0a\u542f\u7528 2x \u6216 4x \u6a21\u5f0f\uff0c\u4ee5\u7f29\u77ed\u9501\u5b9a\u7a97\u53e3\u3002<\/p>\n<p><strong>\u5b9e\u65bd NUMA \u7ed1\u5b9a<\/strong>\uff1a\u4f7f\u5173\u952e\u4f4e\u5ef6\u8fdf\u5e94\u7528\u7ebf\u7a0b\u4e0e\u672c\u5730\u5185\u5b58\u8282\u70b9\u5bf9\u9f50\u3002<\/p>\n<p><strong>\u9a8c\u8bc1\u7a33\u5b9a\u6027<\/strong>\uff1a\u6267\u884c\u5168\u9762\u7684\u538b\u529b\u6d4b\u8bd5\uff0c\u9632\u6b62\u9759\u9ed8\u6570\u636e\u635f\u574f\u3002<\/p>\n<h2>\u5e38\u89c1\u95ee\u9898<\/h2>\n<h3>DRAM \u5237\u65b0\u5468\u671f\u4e2d\u7684\u5185\u5b58\u505c\u987f\u662f\u7531\u4ec0\u4e48\u5f15\u8d77\u7684\uff1f<\/h3>\n<p><strong>\u6838\u5fc3\u673a\u5236<\/strong>\uff1aDRAM \u7535\u5bb9\u4f1a\u6301\u7eed\u6d41\u5931\u7535\u8377\u3002\u5185\u5b58\u63a7\u5236\u5668\u5fc5\u987b\u5b9a\u671f\u6682\u505c\u6570\u636e\u64cd\u4f5c\uff0c\u5bf9\u8fd9\u4e9b\u5b58\u50a8\u5355\u5143\u8fdb\u884c\u91cd\u65b0\u5145\u7535\u3002\u6b64\u884c\u5237\u65b0\u5468\u671f\u65f6\u95f4\uff08tRFC\uff09\u4f1a\u9501\u5b9a\u76ee\u6807\u5185\u5b58\u5b58\u50a8\u4f53\uff0c\u4ece\u800c\u6682\u65f6\u963b\u585e\u6765\u81ea CPU \u7ebf\u7a0b\u7684\u8bfb\u5199\u8bf7\u6c42\u3002<\/p>\n<h3>DDR5 \u7ec6\u7c92\u5ea6\u5237\u65b0\u5982\u4f55\u964d\u4f4e\u5ef6\u8fdf\uff1f<\/h3>\n<p>DDR5 \u7ec6\u7c92\u5ea6\u5237\u65b0\uff08FGR\uff09\u4f1a\u5c06\u6807\u51c6\u5237\u65b0\u64cd\u4f5c\u62c6\u5206\u4e3a\u66f4\u5c0f\u3001\u66f4\u9891\u7e41\u7684\u5468\u671f\u3002\u8be5\u7279\u6027\u5177\u5907\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u66f4\u77ed\u7684\u9501\u5b9a\u65f6\u95f4<\/strong>\uff1a\u51cf\u5c11\u5355\u6b21\u5b58\u50a8\u4f53\u9501\u5b9a\u65f6\u957f\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u66f4\u5c0f\u7684\u6392\u961f\u538b\u529b<\/strong>\uff1a\u9632\u6b62\u5185\u5b58\u63a7\u5236\u5668\u4e2d\u5f62\u6210\u5927\u89c4\u6a21\u8bf7\u6c42\u79ef\u538b\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u66f4\u5e73\u6ed1\u7684\u541e\u5410\u8868\u73b0<\/strong>\uff1a\u7f13\u89e3\u4e25\u91cd\u7684 p99 \u5c3e\u5ef6\u8fdf\u5cf0\u503c\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u5728 BIOS \u4e2d\u8c03\u6574 tREFI 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