{"id":34711,"date":"2026-08-01T08:00:13","date_gmt":"2026-08-01T00:00:13","guid":{"rendered":"https:\/\/www.varidata.com\/?p=34711"},"modified":"2026-07-31T15:11:17","modified_gmt":"2026-07-31T07:11:17","slug":"the-ram-refresh-cycle-latency-impact-on-server-performance","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/the-ram-refresh-cycle-latency-impact-on-server-performance\/","title":{"rendered":"RAM \u5237\u65b0\u9031\u671f\u5c0d\u4f3a\u670d\u5668\u6548\u80fd\u7684\u5ef6\u9072\u5f71\u97ff"},"content":{"rendered":"<p>DRAM \u5237\u65b0\u9031\u671f\u6703\u76f4\u63a5\u5f71\u97ff\u73fe\u4ee3\u4f01\u696d\u7d1a<a href=\"https:\/\/www.varidata.com\/zh-tw\/server\/los-angeles\/\" target=\"_blank\">\u4f3a\u670d\u5668\u8a18\u61b6\u9ad4<\/a>\u7684\u5ef6\u9072\u8868\u73fe\u3002\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u6703\u5b9a\u671f\u767c\u51fa\u5237\u65b0\u547d\u4ee4\uff0c\u4ee5\u4fdd\u6301\u96fb\u5bb9\u55ae\u5143\u4e2d\u7684\u96fb\u8377\u3002\u65bc\u9019\u4e9b\u5217\u5237\u65b0\u9031\u671f\u6642\u9593\uff08tRFC\uff09\u9593\u9694\u671f\u9593\uff0c\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u6703\u9396\u5b9a\u76ee\u6a19\u8a18\u61b6\u9ad4\u5132\u5b58\u9ad4\uff0c\u4e26\u7acb\u5373\u963b\u585e\u50b3\u5165\u7684\u8b80\u5beb\u8acb\u6c42\u3002\u9019\u4e9b\u904b\u4f5c\u505c\u9813\u6703\u5f62\u6210\u986f\u8457\u7684\u786c\u9ad4\u57f7\u884c\u74f6\u9838\u3002\u6a19\u6e96<a href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/the-impact-on-gameplay-of-packet-loss-versus-high-latency\/\" target=\"_blank\">\u8a18\u61b6\u9ad4\u5ef6\u9072<\/a>\u57fa\u6e96\u6e2c\u8a66\u6240\u56de\u5831\u7684\u8cc7\u6599\uff0c\u672c\u8eab\u5df2\u5c07\u9019\u4e9b\u9031\u671f\u6027\u5237\u65b0\u5ef6\u9072\u8a08\u5165\u57fa\u7dda\u6e2c\u91cf\u4e4b\u4e2d\u3002\u56e0\u6b64\uff0cCPU \u57f7\u884c\u7dd2\u6703\u53cd\u8986\u66ab\u505c\u57f7\u884c\uff0c\u7b49\u5f85\u88ab\u963b\u585e\u7684\u8a18\u61b6\u9ad4\u901a\u9053\u91cd\u65b0\u958b\u653e\u3002<\/p>\n<h2>DRAM \u5237\u65b0\u6a5f\u5236\u8207\u8a18\u61b6\u9ad4\u505c\u9813<\/h2>\n<h3>\u5237\u65b0\u547d\u4ee4\u5982\u4f55\u9396\u5b9a DRAM \u5132\u5b58\u9ad4<\/h3>\n<p>DRAM \u55ae\u5143\u4e2d\u7684\u96fb\u8377\u6703\u96a8\u8457\u6642\u9593\u63a8\u79fb\u800c\u6d41\u5931\u3002\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u5fc5\u9808\u767c\u51fa\u9031\u671f\u6027\u5237\u65b0\u547d\u4ee4\uff0c\u4ee5\u6062\u5fa9\u9019\u4e9b\u6d41\u5931\u7684\u96fb\u8377\u3002\u5728\u57f7\u884c\u5237\u65b0\u64cd\u4f5c\u671f\u9593\uff0c\u63a7\u5236\u5668\u6703\u9396\u5b9a\u7279\u5b9a\u7684\u8a18\u61b6\u9ad4\u5132\u5b58\u9ad4\u3002\u9019\u7a2e\u786c\u9ad4\u5c64\u7d1a\u9396\u5b9a\u6703\u7acb\u5373\u963b\u585e\u50b3\u5165\u7684\u8b80\u5beb\u8acb\u6c42\u3002<\/p>\n<blockquote>\n<p><strong>\u95dc\u9375\u91cd\u9ede<\/strong>\uff1a\u88ab\u9396\u5b9a\u7684 DRAM \u5132\u5b58\u9ad4\u7121\u6cd5\u8655\u7406 CPU \u7684\u8cc7\u6599\u8acb\u6c42\u3002\u7cfb\u7d71\u5fc5\u9808\u5c07\u6240\u6709\u767c\u5f80\u8a72\u5132\u5b58\u9ad4\u7684\u64cd\u4f5c\u6392\u968a\uff0c\u6216\u76f4\u63a5\u4f7f\u5176\u505c\u9813\uff0c\u76f4\u5230\u8a72\u5237\u65b0\u9031\u671f\u7d50\u675f\u3002<\/p>\n<\/blockquote>\n<h3>\u5728 tRFC \u8207 tREFI \u4e4b\u9593\u5e73\u8861\u8655\u7406\u6642\u9593<\/h3>\n<p>\u6709\u5169\u500b\u95dc\u9375\u6642\u5e8f\u53c3\u6578\u6c7a\u5b9a\u8a18\u61b6\u9ad4\u5237\u65b0\u64cd\u4f5c\u7684\u884c\u70ba\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u5217\u5237\u65b0\u9031\u671f\u6642\u9593\uff08tRFC\uff09<\/strong>\uff1a\u6b64\u53c3\u6578\u8868\u793a\u4e00\u6b21\u5237\u65b0\u547d\u4ee4\u671f\u9593\uff0cDRAM \u5132\u5b58\u9ad4\u4fdd\u6301\u4e0d\u53ef\u7528\u7684\u7cbe\u78ba\u6642\u9577\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5237\u65b0\u9593\u9694\uff08tREFI\uff09<\/strong>\uff1a\u6b64\u53c3\u6578\u5b9a\u7fa9\u9023\u7e8c\u5169\u6b21\u5237\u65b0\u547d\u4ee4\u4e4b\u9593\u6240\u5141\u8a31\u7684\u6700\u9577\u6642\u9593\u9593\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>\u53c3\u6578<\/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\u9072\u5f71\u97ff<\/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>\u5132\u5b58\u9ad4\u9396\u5b9a\u6301\u7e8c\u6642\u9593<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>tRFC \u8d8a\u9ad8\uff0c\u57f7\u884c\u505c\u9813\u6642\u9593\u8d8a\u9577<\/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\u9031\u671f\u4e4b\u9593\u7684\u6642\u9593\u9593\u9694<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>tREFI \u8d8a\u4f4e\uff0c\u505c\u9813\u767c\u751f\u8d8a\u983b\u7e41<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u7cfb\u7d71\u7a69\u5b9a\u6027\u8981\u6c42\u5728\u9019\u4e9b\u8a2d\u5b9a\u4e4b\u9593\u5be6\u73fe\u7cbe\u78ba\u5e73\u8861\u3002\u66f4\u77ed\u7684\u5237\u65b0\u9593\u9694\u6709\u52a9\u65bc\u9632\u6b62\u8cc7\u6599\u640d\u58de\uff0c\u4f46\u66f4\u983b\u7e41\u7684\u5237\u65b0\u6703\u589e\u52a0\u904b\u7b97\u64cd\u4f5c\u7684\u6574\u9ad4\u5ef6\u9072\u5f71\u97ff\u3002<\/p>\n<h3>\u5237\u65b0\u9031\u671f\u671f\u9593\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u7684\u884c\u70ba<\/h3>\n<p>\u73fe\u4ee3\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u900f\u904e\u6df1\u5ea6\u57f7\u884c\u4f47\u5217\u4f86\u8655\u7406\u5927\u91cf\u8acb\u6c42\u3002\u7576\u5237\u65b0\u9031\u671f\u89f8\u767c\u6642\uff0c\u63a7\u5236\u5668\u6703\u66ab\u505c\u5411\u6d3b\u52d5\u5132\u5b58\u9ad4\u4e0b\u767c\u547d\u4ee4\u3002\u4f86\u81ea\u8655\u7406\u5668\u7684\u65b0\u8acb\u6c42\u6703\u8fc5\u901f\u586b\u6eff\u5167\u90e8\u4f47\u5217\u3002<\/p>\n<p>\u73fe\u4ee3 DDR4 \u8207 DDR5 \u6a21\u7d44\u4e2d\u7684\u9ad8\u5bc6\u5ea6\u64f4\u5145\u9032\u4e00\u6b65\u52a0\u5287\u4e86\u9019\u500b\u554f\u984c\u3002\u66f4\u9ad8\u5bb9\u91cf\u7684\u6676\u7247\u6703\u5728\u55ae\u4e00\u88f8\u6676\u4e0a\u6574\u5408\u66f4\u591a\u5132\u5b58\u55ae\u5143\u3002\u66f4\u591a\u7684\u55ae\u5143\u6578\u91cf\u610f\u5473\u8457\u5237\u65b0\u6240\u6709\u5217\u6240\u9700\u7684 tRFC \u6301\u7e8c\u6642\u9593\u986f\u8457\u589e\u52a0\u3002\u56e0\u6b64\uff0c\u9ad8\u5bc6\u5ea6\u4f3a\u670d\u5668\u8a18\u61b6\u9ad4\u6703\u62c9\u9577\u57f7\u884c\u505c\u9813\u6642\u9593\u3002\u9019\u4e9b\u66f4\u9577\u7684\u505c\u9813\u6703\u66f4\u983b\u7e41\u5730\u963b\u585e CPU \u6307\u4ee4\u7ba1\u7dda\uff0c\u964d\u4f4e\u4f01\u696d\u7d1a\u9ad8\u8ca0\u8f09\u5de5\u4f5c\u5834\u666f\u4e0b\u7684\u6574\u9ad4\u7cfb\u7d71\u541e\u5410\u91cf\u3002<\/p>\n<h2>\u91cf\u5316\u5237\u65b0\u5ef6\u9072\u5c0d\u4f01\u696d\u5de5\u4f5c\u8ca0\u8f09\u7684\u5f71\u97ff<\/h2>\n<p>\u6a19\u6e96\u8a18\u61b6\u9ad4\u57fa\u6e96\u5206\u6578\u5df2\u7d93\u5305\u542b\u9031\u671f\u6027 DRAM \u505c\u9813\u6240\u5e36\u4f86\u7684\u7d2f\u7a4d\u5ef6\u9072\u5f71\u97ff\u3002\u7136\u800c\uff0c\u5e73\u5747\u5ef6\u9072\u6307\u6a19\u5f80\u5f80\u6703\u63a9\u84cb\u4e0d\u53ef\u9810\u6e2c\u7684\u8655\u7406\u5ef6\u9072\u3002\u5728\u5be6\u969b\u5237\u65b0\u904e\u7a0b\u4e2d\uff0c\u77ed\u66ab\u7684\u5132\u5b58\u9ad4\u9396\u5b9a\u7d93\u5e38\u6703\u8f49\u5316\u70ba\u56b4\u91cd\u7684\u61c9\u7528\u5c64\u6548\u80fd\u4e0b\u964d\u3002<\/p>\n<h3>\u5c0d\u8a18\u61b6\u9ad4\u8cc7\u6599\u5eab\u7684\u5ef6\u9072\u5f71\u97ff<\/h3>\n<p>\u50cf Redis \u9019\u6a23\u7684\u8a18\u61b6\u9ad4\u8cc7\u6599\u5eab\u5f15\u64ce\uff0c\u6703\u5c07\u6574\u500b\u6d3b\u52d5\u8cc7\u6599\u96c6\u76f4\u63a5\u5b58\u653e\u5728\u5be6\u9ad4 RAM \u4e2d\u3002\u9019\u985e\u67b6\u69cb\u4f9d\u8cf4\u77ac\u6642\u4e14\u78ba\u5b9a\u6027\u7684\u8b80\u5beb\u5b58\u53d6\u6642\u9593\u3002\u7576\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u767c\u51fa\u5237\u65b0\u547d\u4ee4\u6642\uff0c\u76ee\u6a19\u8a18\u61b6\u9ad4\u5132\u5b58\u9ad4\u6703\u7acb\u5373\u88ab\u9396\u5b9a\u3002\u7cfb\u7d71\u5c07\u6240\u6709\u50b3\u5165\u7684\u9375\u503c\u8acb\u6c42\u6392\u968a\u3002\u9019\u4e9b\u5fae\u79d2\u7d1a\u505c\u9813\u6703\u5728\u6578\u767e\u842c\u6b21\u64cd\u4f5c\u4e2d\u4e0d\u65b7\u7d2f\u7a4d\uff0c\u5f9e\u800c\u964d\u4f4e\u8cc7\u6599\u5eab\u7684\u6574\u9ad4\u541e\u5410\u91cf\u3002<\/p>\n<h3>\u9ad8\u983b\u5206\u6790\u4e2d\u7684\u5c3e\u7aef\u5ef6\u9072\u8207\u6296\u52d5<\/h3>\n<p>\u9ad8\u983b\u5206\u6790\u5e73\u53f0\u4f9d\u8cf4\u7a69\u5b9a\u4e00\u81f4\u7684\u57f7\u884c\u6642\u5e8f\u3002\u9031\u671f\u6027\u5237\u65b0\u6703\u5f15\u5165\u904b\u4f5c\u6296\u52d5\uff0c\u4f7f\u539f\u672c\u7a69\u5b9a\u7684\u57fa\u790e\u5b58\u53d6\u6642\u9593\u6f14\u8b8a\u70ba\u7570\u5e38\u7684\u57f7\u884c\u5ef6\u9072\u3002\u9019\u4e9b\u505c\u9813\u6703\u76f4\u63a5\u63a8\u9ad8 p99 \u8207 p99.9 \u5c3e\u7aef\u5ef6\u9072\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>\u53c3\u6578 \/ \u6307\u6a19<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6a19\u6e96\u72c0\u614b<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5237\u65b0\u505c\u9813\u4e8b\u4ef6<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5c0d\u5c3e\u7aef\u5ef6\u9072\u7684\u5f71\u97ff<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8a18\u61b6\u9ad4\u55ae\u5143\u72c0\u614b<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6b63\u5e38\u8cc7\u6599\u5b58\u53d6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u9031\u671f\u6027\u5237\u65b0\uff08tREFI \u7d04\u70ba 7.8 \u00b5s\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6676\u7247\u66ab\u6642\u4e0d\u53ef\u7528<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5ef6\u9072\u6642\u9577<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>50\u2013100 \u5948\u79d2<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7d04 350 \u5948\u79d2<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u505c\u9813\u6703\u5e36\u4f86\u5de8\u5927\u7684\u7b49\u5f85\u5ef6\u9072<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u505c\u9813\u6a5f\u7387<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u57fa\u7dda\u5b58\u53d6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6bcf\u901a\u9053\/\u5132\u5b58\u9ad4\u7d04 0.5%<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u9ad8\u541e\u5410\u5834\u666f\u4e0b\u5fc5\u7136\u983b\u7e41\u51fa\u73fe\u5ef6\u9072<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5ef6\u9072\u5206\u5e03<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6a19\u7a31\u5b58\u53d6\u6642\u9593<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4e3b\u5c0e p99 \u548c p99.9<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5f62\u6210\u56b4\u91cd\u7684\u9577\u5c3e\u5206\u5e03<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7cfb\u7d71\u5f71\u97ff<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5373\u6642\u57f7\u884c<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5fae\u79d2\u7d1a\u5ef6\u9072<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5c0e\u81f4\u932f\u5931\u4ea4\u6613\u6a5f\u6703<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>\u865b\u64ec\u5316\u4f3a\u670d\u5668\u4e2d\u7684\u8a18\u61b6\u9ad4\u532f\u6d41\u6392\u722d\u7528<\/h3>\n<p>\u865b\u64ec\u5316 Hypervisor \u6703\u5c07\u6578\u5341\u500b\u865b\u64ec\u6a5f\u5668\u8907\u7528\u5230\u5171\u4eab\u8a18\u61b6\u9ad4\u901a\u9053\u4e4b\u4e0a\u3002\u591a\u500b CPU \u6838\u5fc3\u6703\u540c\u6642\u5411\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u63a8\u9001\u4e26\u767c\u8acb\u6c42\u4f47\u5217\u3002\u5237\u65b0\u9031\u671f\u6703\u66ab\u505c\u6d3b\u52d5\u5132\u5b58\u9ad4\u4e0a\u7684\u532f\u6d41\u6392\u4ea4\u6613\uff0c\u8feb\u4f7f\u786c\u9ad4\u4f47\u5217\u7a4d\u58d3\u5f8c\u7e8c\u547d\u4ee4\u3002\u9019\u7a2e\u901a\u9053\u722d\u7528\u6703\u589e\u52a0\u904b\u4f5c\u5ef6\u9072\uff0c\u4e26\u5c07\u5ef6\u9072\u5f71\u97ff\u653e\u5927\u5230\u6240\u6709\u5171\u7f6e\u7684\u865b\u64ec\u5316\u5de5\u4f5c\u8ca0\u8f09\u4e0a\u3002<\/p>\n<h2>\u7de9\u89e3\u7b56\u7565\u8207\u914d\u7f6e\u8abf\u6821<\/h2>\n<h3>\u5728\u4f3a\u670d\u5668 BIOS \u4e2d\u6700\u4f73\u5316 tRFC \u8207 tREFI<\/h3>\n<p>\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u76f4\u63a5\u5728\u4f3a\u670d\u5668 BIOS \u4e2d\u8abf\u6574\u7279\u5b9a\u7684\u8a18\u61b6\u9ad4\u6642\u5e8f\u53c3\u6578\u3002\u63d0\u9ad8\u5237\u65b0\u9593\u9694\uff08tREFI\uff09\u53ef\u5ef6\u5f8c\u5237\u65b0\u9031\u671f\u7684\u767c\u751f\uff0c\u5f9e\u800c\u6e1b\u5c11\u57f7\u884c\u505c\u9813\u7684\u983b\u7387\u3002\u7136\u800c\uff0c\u66f4\u9ad8\u7684\u74b0\u5883\u904b\u4f5c\u6eab\u5ea6\u6703\u52a0\u901f\u55ae\u5143\u96fb\u8377\u6d41\u5931\u3002\u56e0\u6b64\uff0c\u5728\u653e\u5bec tREFI \u4e0a\u9650\u6642\uff0c\u7ba1\u7406\u54e1\u5fc5\u9808\u7dad\u6301\u7a4d\u6975\u6709\u6548\u7684\u6a5f\u7bb1\u6563\u71b1\u3002<\/p>\n<blockquote>\n<p><strong>\u8b66\u544a<\/strong>\uff1a\u904e\u5ea6\u6700\u4f73\u5316 tRFC \u6216 tREFI \u53c3\u6578\u53ef\u80fd\u5c0e\u81f4\u975c\u9ed8\u8cc7\u6599\u640d\u58de\u3002\u7cfb\u7d71\u5de5\u7a0b\u5e2b\u5fc5\u9808\u57f7\u884c\u56b4\u683c\u7684\u58d3\u529b\u6e2c\u8a66\uff0c\u4f8b\u5982 <code>memtest86+<\/code>\u3002<\/p>\n<\/blockquote>\n<h3>\u5229\u7528\u7d30\u7c92\u5ea6\u5237\u65b0\u7de9\u89e3\u5ef6\u9072\u5f71\u97ff<\/h3>\n<p>\u73fe\u4ee3 DDR5 \u8a18\u61b6\u9ad4\u6a21\u7d44\u5f15\u5165\u4e86\u7d30\u7c92\u5ea6\u5237\u65b0\uff08Fine-Grained Refresh\uff0cFGR\uff09\u6a21\u5f0f\uff0c\u4ee5\u76e1\u91cf\u964d\u4f4e\u904b\u4f5c\u5ef6\u9072\u3002\u8207\u4e00\u6b21\u6027\u9396\u5b9a\u5168\u90e8\u5132\u5b58\u9ad4\u7fa4\u7d44\u7684\u50b3\u7d71\u65b9\u5f0f\u4e0d\u540c\uff0cFGR \u6703\u5c07\u5237\u65b0\u547d\u4ee4\u62c6\u5206\u70ba\u66f4\u5c0f\u3001\u5206\u5e03\u66f4\u5747\u52fb\u7684\u64cd\u4f5c\u3002<\/p>\n<ul>\n<li>\n<p><strong>\u6a19\u6e96\u5237\u65b0\uff081x\uff09<\/strong>\uff1a\u66f4\u9577\u6642\u9593\u5730\u9396\u5b9a\u5b8c\u6574\u5132\u5b58\u9ad4\u7fa4\u7d44\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7d30\u7c92\u5ea6\u5237\u65b0\uff082x\/4x\uff09<\/strong>\uff1a\u4ee5 2 \u500d\u6216 4 \u500d\u983b\u7387\u767c\u51fa\u66f4\u77ed\u7684\u5237\u65b0\u9031\u671f\u3002<\/p>\n<\/li>\n<\/ul>\n<pre><code>\u6a19\u6e96\u5237\u65b0\uff081x\uff09 : [--- \u8f03\u9577\u7684\u5132\u5b58\u9ad4\u9396\u5b9a ---][--- \u8cc7\u6599\u8655\u7406 ---]\r\n\u7d30\u7c92\u5ea6\u5237\u65b0\uff084x\uff09: [-\u9396\u5b9a-][ \u8655\u7406\u4e2d ][-\u9396\u5b9a-][ \u8655\u7406\u4e2d ]<\/code><\/pre>\n<p>\u66f4\u77ed\u7684\u9396\u5b9a\u6642\u9593\u53ef\u4ee5\u986f\u8457\u964d\u4f4e\u4f47\u5217\u7b49\u5f85\u5cf0\u503c\u3002\u9019\u7a2e\u65b9\u5f0f\u80fd\u5920\u9632\u6b62\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u4f47\u5217\u5f62\u6210\u5927\u898f\u6a21\u7a4d\u58d3\uff0c\u5f9e\u800c\u6e1b\u8f15\u61c9\u7528\u57f7\u884c\u7dd2\u6240\u611f\u53d7\u5230\u7684\u5ef6\u9072\u5f71\u97ff\u3002<\/p>\n<h3>NUMA \u67b6\u69cb\u8207\u9801\u9762\u914d\u7f6e\u7b56\u7565<\/h3>\n<p>\u5728\u591a\u8def\u4f3a\u670d\u5668\u4e2d\uff0c\u975e\u4e00\u81f4\u6027\u8a18\u61b6\u9ad4\u5b58\u53d6\uff08NUMA\uff09\u62d3\u64b2\u5c0d\u65bc\u7ba1\u7406\u8a18\u61b6\u9ad4\u505c\u9813\u81f3\u95dc\u91cd\u8981\u3002\u7576\u67d0\u500b\u672c\u5730\u63d2\u69fd\u4e0a\u7684\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u89f8\u767c\u5237\u65b0\u6642\uff0c\u9060\u7aef\u6838\u5fc3\u6703\u906d\u9047\u758a\u52a0\u5f8c\u7684\u5b58\u53d6\u5ef6\u9072\u3002<\/p>\n<p>\u5de5\u7a0b\u5e2b\u53ef\u900f\u904e\u914d\u7f6e Linux \u6838\u5fc3\u8a2d\u5b9a\u4f86\u9694\u96e2\u8a18\u61b6\u9ad4\u6d41\u91cf\uff1a<\/p>\n<ol>\n<li>\n<p>\u5c0d\u5206\u6563\u5f0f\u5de5\u4f5c\u8ca0\u8f09\u555f\u7528 NUMA \u611f\u77e5\u578b\u8a18\u61b6\u9ad4\u914d\u7f6e\uff0c\u4f8b\u5982\u4f7f\u7528 <code>numactl --interleave=all<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u914d\u7f6e\u5927\u9801\uff08<code>HugeTLB<\/code>\uff09\uff0c\u4ee5\u6e1b\u5c11\u5237\u65b0\u9593\u9694\u671f\u9593\u7684\u8f49\u8b6f\u5f8c\u5099\u7de9\u885d\u5340\uff08TLB\uff09\u672a\u547d\u4e2d\u3002<\/p>\n<\/li>\n<li>\n<p>\u900f\u904e\u57f7\u884c\u7dd2\u89aa\u548c\u6027\u8a2d\u5b9a\uff0c\u5c07\u5c0d\u5ef6\u9072\u654f\u611f\u7684\u61c9\u7528\u57f7\u884c\u7dd2\u56fa\u5b9a\u5230\u7279\u5b9a CPU \u6838\u5fc3\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u9019\u4e9b\u7b56\u7565\u6027\u914d\u7f6e\u8abf\u6574\u80fd\u5920\u6700\u4f73\u5316\u8cc7\u6599\u8def\u5f91\u3001\u6e1b\u5c11\u901a\u9053\u4e32\u64fe\uff0c\u4e26\u6700\u5927\u5316\u73fe\u4ee3\u4f01\u696d\u7d1a\u786c\u9ad4\u4e0a\u7684\u6574\u9ad4\u904b\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>\u73fe\u4ee3\u4f01\u696d\u7cfb\u7d71\u5fc5\u9808\u5728\u8a18\u61b6\u9ad4\u5bc6\u5ea6\u3001\u904b\u4f5c\u53ef\u9760\u6027\u8207\u57f7\u884c\u5ef6\u9072\u4e4b\u9593\u53d6\u5f97\u5e73\u8861\u3002\u66f4\u9ad8\u7684 DRAM \u5bb9\u91cf\u6703\u589e\u52a0\u5237\u65b0\u505c\u9813\uff0c\u5f9e\u800c\u8feb\u4f7f\u7cfb\u7d71\u5728\u7e3d\u5132\u5b58\u5bb9\u91cf\u8207\u5fae\u79d2\u7d1a\u6548\u80fd\u4e4b\u9593\u4f5c\u51fa\u8271\u96e3\u53d6\u6368\u3002\u7cfb\u7d71\u67b6\u69cb\u5e2b\u5fc5\u9808\u4e3b\u52d5\u6700\u4f73\u5316\u6642\u5e8f\u53c3\u6578\uff0c\u4ee5\u76e1\u91cf\u6e1b\u5c11\u7ba1\u7dda\u74f6\u9838\u3002<\/p>\n<p><strong>\u7cfb\u7d71\u67b6\u69cb\u5e2b\u7a3d\u6838\u6e05\u55ae<\/strong>\uff1a<\/p>\n<p><strong>\u6838\u67e5 BIOS \u6642\u5e8f<\/strong>\uff1a\u5be9\u67e5\u5404\u4f3a\u670d\u5668\u7bc0\u9ede\u7684\u57fa\u7dda tRFC \u8207 tREFI \u914d\u7f6e\u3002<\/p>\n<p><strong>\u555f\u7528\u7d30\u7c92\u5ea6\u5237\u65b0<\/strong>\uff1a\u5728 DDR5 \u6a21\u7d44\u4e0a\u555f\u7528 2x \u6216 4x \u6a21\u5f0f\uff0c\u4ee5\u7e2e\u77ed\u9396\u5b9a\u8996\u7a97\u3002<\/p>\n<p><strong>\u5be6\u65bd NUMA \u7d81\u5b9a<\/strong>\uff1a\u4f7f\u95dc\u9375\u4f4e\u5ef6\u9072\u61c9\u7528\u57f7\u884c\u7dd2\u8207\u672c\u5730\u8a18\u61b6\u9ad4\u7bc0\u9ede\u5c0d\u9f4a\u3002<\/p>\n<p><strong>\u9a57\u8b49\u7a69\u5b9a\u6027<\/strong>\uff1a\u57f7\u884c\u5168\u9762\u7684\u58d3\u529b\u6e2c\u8a66\uff0c\u9632\u6b62\u975c\u9ed8\u8cc7\u6599\u640d\u58de\u3002<\/p>\n<h2>\u5e38\u898b\u554f\u984c<\/h2>\n<h3>DRAM \u5237\u65b0\u9031\u671f\u4e2d\u7684\u8a18\u61b6\u9ad4\u505c\u9813\u662f\u7531\u4ec0\u9ebc\u5f15\u8d77\u7684\uff1f<\/h3>\n<p><strong>\u6838\u5fc3\u6a5f\u5236<\/strong>\uff1aDRAM \u96fb\u5bb9\u6703\u6301\u7e8c\u6d41\u5931\u96fb\u8377\u3002\u8a18\u61b6\u9ad4\u63a7\u5236\u5668\u5fc5\u9808\u5b9a\u671f\u66ab\u505c\u8cc7\u6599\u64cd\u4f5c\uff0c\u5c0d\u9019\u4e9b\u5132\u5b58\u55ae\u5143\u9032\u884c\u91cd\u65b0\u5145\u96fb\u3002\u6b64\u5217\u5237\u65b0\u9031\u671f\u6642\u9593\uff08tRFC\uff09\u6703\u9396\u5b9a\u76ee\u6a19\u8a18\u61b6\u9ad4\u5132\u5b58\u9ad4\uff0c\u5f9e\u800c\u66ab\u6642\u963b\u585e\u4f86\u81ea CPU \u57f7\u884c\u7dd2\u7684\u8b80\u5beb\u8acb\u6c42\u3002<\/p>\n<h3>DDR5 \u7d30\u7c92\u5ea6\u5237\u65b0\u5982\u4f55\u964d\u4f4e\u5ef6\u9072\uff1f<\/h3>\n<p>DDR5 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