{"id":287,"date":"2026-06-14T15:17:19","date_gmt":"2026-06-14T07:17:19","guid":{"rendered":"http:\/\/www.longxiapro.com\/?p=287"},"modified":"2026-06-14T15:17:19","modified_gmt":"2026-06-14T07:17:19","slug":"memory-tieringzidongduojineicunguanlilengrefencengtoumingqianyicxldramnvmewanzhengera","status":"publish","type":"post","link":"https:\/\/www.longxiapro.com\/index.php\/287\/","title":{"rendered":"Memory Tiering\u30fb\u81ea\u52a8\u591a\u7ea7\u5185\u5b58\u7ba1\u7406\uff08\u51b7\u70ed\u5206\u5c42\u30fb\u900f\u660e\u8fc1\u79fb\u30fbCXL\/DRAM\/NVMe\u30fb\u5b8c\u6574\u4e8c\u5f00\u4ee3\u7801\uff09"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u4e00\u3001\u6838\u5fc3\u5b9a\u4e49<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Memory Tiering\uff08\u5185\u5b58\u5206\u5c42 \/ \u591a\u7ea7\u5185\u5b58\u7ba1\u7406\uff09<\/strong>\uff1a\u6309<strong>\u901f\u5ea6\u3001\u5bb9\u91cf\u3001\u6210\u672c<\/strong>\u628a\u5185\u5b58\u5212\u5206\u4e3a<strong>\u9ad8\u901f\u70ed\u5c42\uff08DRAM\uff09\u3001\u4e2d\u901f\u6e29\u5c42\uff08CXL\/PMem\uff09\u3001\u4f4e\u901f\u51b7\u5c42\uff08NVMe SSD\uff09<\/strong>\uff0c<strong>\u81ea\u52a8\u8bc6\u522b\u51b7\u70ed\u9875\u3001\u52a8\u6001\u900f\u660e\u8fc1\u79fb\u3001\u7edf\u4e00\u5730\u5740\u7a7a\u95f4\u3001\u5e94\u7528\u65e0\u611f\u77e5<\/strong>\uff0c\u4ee5<strong>\u6781\u4f4e\u6027\u80fd\u635f\u8017\uff08&lt;5%\uff09\u5b9e\u73b0\u5185\u5b58\u5bb9\u91cf 2\u20138 \u500d\u6269\u5c55\u3001\u6210\u672c\u5927\u5e45\u964d\u4f4e\u3001DRAM \u5229\u7528\u7387\u6700\u5927\u5316<\/strong>\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6838\u5fc3\uff1a<strong>\u70ed\u6570\u636e\u653e DRAM\uff0c\u51b7\u6570\u636e\u4e0b\u6c89 NVMe\uff0c\u7f3a\u9875\u81ea\u52a8\u56de\u8fc1<\/strong><\/li>\n\n\n\n<li>\u76ee\u6807\uff1a<strong>\u6027\u80fd\u2248\u7eaf DRAM\uff0c\u5bb9\u91cf\u2248SSD\uff0c\u6210\u672c\u22481\/3<\/strong><\/li>\n\n\n\n<li>\u9002\u7528\uff1a<strong>\u6570\u636e\u5e93\u3001\u7f13\u5b58\u3001AI \u5927\u6a21\u578b\u3001\u865a\u62df\u5316\u3001\u5927\u6570\u636e\u3001\u5185\u5b58\u6570\u636e\u5e93\u3001\u9ad8\u5e76\u53d1\u670d\u52a1<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e8c\u3001\u5c42\u7ea7\u67b6\u6784\uff08\u4e09\u7ea7\u6807\u51c6\uff09<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Tier 1\uff08\u70ed\u5c42\u30fb\u9ad8\u901f\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4ecb\u8d28<\/strong>\uff1aDDR5 DRAM\uff08\u672c\u5730\u5185\u5b58\uff09<\/li>\n\n\n\n<li><strong>\u901f\u5ea6<\/strong>\uff1a100\u2013150GB\/s\uff0c\u5ef6\u8fdf &lt; 100ns<\/li>\n\n\n\n<li><strong>\u7528\u9014<\/strong>\uff1a<strong>\u70ed\u9875\u3001\u9ad8\u9891\u8bbf\u95ee\u3001\u4f4e\u5ef6\u8fdf\u654f\u611f\u3001\u5de5\u4f5c\u96c6<\/strong><\/li>\n\n\n\n<li><strong>\u5bb9\u91cf<\/strong>\uff1a\u5c0f\uff0832GB\u2013512GB\uff09\u3001\u8d35<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tier 2\uff08\u6e29\u5c42\u30fb\u4e2d\u901f\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4ecb\u8d28<\/strong>\uff1aCXL 4.0\/PMem\uff08\u6301\u4e45\u5185\u5b58\uff09<\/li>\n\n\n\n<li><strong>\u901f\u5ea6<\/strong>\uff1a30\u201360GB\/s\uff0c\u5ef6\u8fdf 300\u2013800ns<\/li>\n\n\n\n<li><strong>\u7528\u9014<\/strong>\uff1a<strong>\u6e29\u9875\u3001\u4e2d\u9891\u3001\u51b7\u70ed\u8fc7\u6e21\u3001\u5927\u7f13\u5b58<\/strong><\/li>\n\n\n\n<li><strong>\u5bb9\u91cf<\/strong>\uff1a\u4e2d\uff08512GB\u20134TB\uff09\u3001\u4e2d\u4ef7<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Tier 3\uff08\u51b7\u5c42\u30fb\u5927\u5bb9\u91cf\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4ecb\u8d28<\/strong>\uff1aNVMe 4.0 SSD\uff08\u5185\u5b58\u76d8\uff09<\/li>\n\n\n\n<li><strong>\u901f\u5ea6<\/strong>\uff1a7\u201312GB\/s\uff0c\u5ef6\u8fdf 20\u2013100\u03bcs<\/li>\n\n\n\n<li><strong>\u7528\u9014<\/strong>\uff1a<strong>\u51b7\u9875\u3001\u4f4e\u9891\u3001\u5386\u53f2\u6570\u636e\u3001\u65e5\u5fd7\u3001\u5907\u4efd\u3001\u95f2\u7f6e\u9875<\/strong><\/li>\n\n\n\n<li><strong>\u5bb9\u91cf<\/strong>\uff1a\u6781\u5927\uff084TB\u201364TB\uff09\u3001\u6781\u4fbf\u5b9c<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u3001\u6838\u5fc3\u539f\u7406\uff08\u81ea\u52a8\u51b7\u70ed\u8c03\u5ea6\uff09<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u70ed\u5ea6\u8bc6\u522b\uff08Hotness\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u8bbf\u95ee\u9891\u7387\uff08Frequency\uff09<\/strong>\uff1a\u5355\u4f4d\u65f6\u95f4\u8bbf\u95ee\u6b21\u6570<\/li>\n\n\n\n<li><strong>\u8bbf\u95ee\u65f6\u95f4\uff08Recency\uff09<\/strong>\uff1aLRU \/ \u65f6\u949f\u7b97\u6cd5\uff0c\u6700\u8fd1\u8bbf\u95ee<\/li>\n\n\n\n<li><strong>\u8bfb\u5199\u6743\u91cd<\/strong>\uff1a\u5199 > \u8bfb\uff0c\u810f\u9875\u4f18\u5148\u7559 DRAM<\/li>\n\n\n\n<li><strong>\u9875\u5bff\u547d\u3001\u8bbf\u95ee\u95f4\u9694\u3001\u6296\u52a8\u68c0\u6d4b<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u51b7\u70ed\u5206\u7ea7<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Hot\uff08\u70ed\uff09<\/strong>\uff1a\u9ad8\u9891\u3001\u6700\u8fd1\u8bbf\u95ee \u2192 <strong>Tier1 DRAM<\/strong><\/li>\n\n\n\n<li><strong>Warm\uff08\u6e29\uff09<\/strong>\uff1a\u4e2d\u9891\u3001\u5076\u5c14\u8bbf\u95ee \u2192 <strong>Tier2 CXL<\/strong><\/li>\n\n\n\n<li><strong>Cold\uff08\u51b7\uff09<\/strong>\uff1a\u6781\u5c11\u8bbf\u95ee\u3001\u957f\u671f\u95f2\u7f6e \u2192 <strong>Tier3 NVMe<\/strong><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u900f\u660e\u8fc1\u79fb\uff08\u6838\u5fc3\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u51b7\u4e0b\u6c89<\/strong>\uff1aDRAM \u6ee1\u2192\u51b7\u9875\u540e\u53f0\u8fc1\u79fb\u5230 NVMe\u2192\u91ca\u653e DRAM<\/li>\n\n\n\n<li><strong>\u70ed\u56de\u8fc1<\/strong>\uff1a\u8bbf\u95ee\u51b7\u9875\u2192\u89e6\u53d1\u7f3a\u9875\u2192\u81ea\u52a8\u62c9\u56de DRAM\u2192\u66f4\u65b0\u6620\u5c04<\/li>\n\n\n\n<li><strong>\u7edf\u4e00\u5730\u5740\u7a7a\u95f4<\/strong>\uff1a\u5e94\u7528\u53ea\u8ba4\u865a\u62df\u5730\u5740\uff0c<strong>\u5b8c\u5168\u65e0\u611f\u77e5<\/strong><\/li>\n\n\n\n<li><strong>\u540e\u53f0\u5f02\u6b65\u8fc1\u79fb<\/strong>\uff1a\u4e0d\u963b\u585e\u4e1a\u52a1\uff0cCPU \u5f00\u9500 &lt; 3%<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u9632\u6296\u52a8\uff08Anti-Thrashing\uff09<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u51b7\u5374\u671f\uff08Cooldown\uff09<\/strong>\uff1a\u540c\u4e00\u9875 5 \u5206\u949f\u5185\u53ea\u8fc1\u79fb 1 \u6b21<\/li>\n\n\n\n<li><strong>\u70ed\u5ea6\u5e73\u6ed1<\/strong>\uff1a\u907f\u514d\u9891\u7e41\u51b7\u70ed\u5207\u6362<\/li>\n\n\n\n<li><strong>\u6c34\u4f4d\u9608\u503c<\/strong>\uff1aDRAM \u4f7f\u7528\u7387 > 80% \u624d\u4e0b\u6c89\uff0c&lt;50% \u505c\u6b62<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u56db\u3001\u4f20\u7edf\u5185\u5b58\u75db\u70b9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u274c <strong>DRAM \u6602\u8d35<\/strong>\uff1a\u5bb9\u91cf\u53d7\u9650\uff0c\u5927\u5185\u5b58\u6210\u672c\u6781\u9ad8<\/li>\n\n\n\n<li>\u274c <strong>\u5185\u5b58\u6d6a\u8d39<\/strong>\uff1a70% \u5185\u5b58\u957f\u671f\u51b7\u6570\u636e\u3001\u95f2\u7f6e\u9875\u5360\u7528<\/li>\n\n\n\n<li>\u274c <strong>OOM \u9891\u7e41<\/strong>\uff1a\u5927\u6a21\u578b \/ \u6570\u636e\u5e93 \/ \u865a\u62df\u5316\u6613\u5185\u5b58\u6ea2\u51fa<\/li>\n\n\n\n<li>\u274c <strong>\u6269\u5bb9\u6210\u672c\u9ad8<\/strong>\uff1a\u63d2\u5185\u5b58\u677f\u6210\u672c\u662f SSD \u7684 5\u201310 \u500d<\/li>\n\n\n\n<li>\u274c <strong>\u624b\u52a8 swap \u4f4e\u6548<\/strong>\uff1aLinux swap \u6027\u80fd\u5dee\u3001\u4e0d\u53ef\u63a7\u3001\u6296\u52a8\u4e25\u91cd<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e94\u3001\u4e8c\u5f00\u589e\u5f3a\u6838\u5fc3\u529f\u80fd<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u4e09\u7ea7\u81ea\u52a8\u5206\u5c42<\/strong>\uff1aDRAM\/CXL\/NVMe \u5168\u81ea\u52a8\u7ba1\u7406<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u7cbe\u51c6\u70ed\u5ea6\u5f15\u64ce<\/strong>\uff1a\u9891\u7387 + \u65f6\u95f4 + \u8bfb\u5199 + \u5bff\u547d\u591a\u7ef4\u8bc4\u5206<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u900f\u660e\u65e0\u611f\u77e5<\/strong>\uff1a\u5e94\u7528\u65e0\u9700\u4fee\u6539\uff0c\u5185\u6838 \/ \u9a71\u52a8\u7ea7\u900f\u660e<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u667a\u80fd\u6c34\u4f4d\u63a7\u5236<\/strong>\uff1a\u9ad8\u6c34\u4f4d\u4e0b\u6c89\u3001\u4f4e\u6c34\u4f4d\u4fdd\u62a4\u3001\u9632 OOM<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u51b7\u70ed\u76d1\u63a7\u770b\u677f<\/strong>\uff1a\u5b9e\u65f6\u70ed\u5ea6\u5206\u5e03\u3001\u8fc1\u79fb\u7edf\u8ba1\u3001\u547d\u4e2d\u7387<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u7b56\u7565\u81ea\u5b9a\u4e49<\/strong>\uff1a\u70ed\u5ea6\u9608\u503c\u3001\u8fc1\u79fb\u901f\u5ea6\u3001\u5206\u5c42\u6bd4\u4f8b\u3001\u9ed1\u767d\u540d\u5355<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>CXL\/PMem\/NVMe \u5168\u517c\u5bb9<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>\u4f4e\u5f00\u9500<\/strong>\uff1aCPU&lt;3%\u3001\u5185\u5b58 &lt; 0.2%\u3001\u6027\u80fd\u635f\u5931 &lt; 5%<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>OpenClaw \u5168\u751f\u6001<\/strong>\uff1a\u76d1\u63a7\u3001\u544a\u8b66\u3001\u53ef\u89c6\u5316\u3001\u81ea\u52a8\u8fd0\u7ef4<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u516d\u3001\u5b8c\u6574\u4e8c\u6b21\u5f00\u53d1\u4ee3\u7801\uff08Linux \u5185\u6838\u6a21\u5757 + \u7528\u6237\u6001\u670d\u52a1\u30fb\u53ef\u76f4\u63a5\u7f16\u8bd1\u90e8\u7f72\uff09<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u9879\u76ee\u7ed3\u6784<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">plaintext<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>memory-tiering\/\n\u251c\u2500\u2500 kernel\/          # \u5185\u6838\u6a21\u5757\uff08\u9875\u8fc1\u79fb\u3001\u70ed\u5ea6\u7edf\u8ba1\uff09\n\u251c\u2500\u2500 user\/            # \u7528\u6237\u6001\u670d\u52a1\uff08\u7b56\u7565\u3001\u76d1\u63a7\u3001API\uff09\n\u251c\u2500\u2500 include\/         # \u5934\u6587\u4ef6\n\u251c\u2500\u2500 config\/          # \u914d\u7f6e\n\u251c\u2500\u2500 tools\/           # \u76d1\u63a7\u5de5\u5177\n\u2514\u2500\u2500 Makefile\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u914d\u7f6e config\/tiering.conf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">ini<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u5185\u5b58\u5206\u5c42\u914d\u7f6e\n&#91;global]\ntier1_size = 64GB          # DRAM\u70ed\u5c42\ntier2_size = 256GB         # CXL\u6e29\u5c42\ntier3_size = 4TB           # NVMe\u51b7\u5c42\nhigh_water = 80             # DRAM\u4f7f\u7528\u7387&gt;80%\u4e0b\u6c89\nlow_water = 50              # &lt;50%\u505c\u6b62\nhot_threshold = 100         # \u8bbf\u95ee\u6b21\u6570&gt;100=\u70ed\nwarm_threshold = 20         # 20\u2013100=\u6e29\ncold_threshold = 0           # &lt;20=\u51b7\ncooldown_sec = 300          # \u51b7\u53745\u5206\u949f\nmigrate_speed = 100MB\/s     # \u8fc1\u79fb\u9650\u901f\nenable_cxl = true\nenable_nvme = true\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u5185\u6838\u6a21\u5757 kernel\/memory_tiering.c\uff08\u6838\u5fc3\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;linux\/init.h&gt;\n#include &lt;linux\/module.h&gt;\n#include &lt;linux\/mm.h&gt;\n#include &lt;linux\/slab.h&gt;\n#include &lt;linux\/pagevec.h&gt;\n#include &lt;linux\/kthread.h&gt;\n#include &lt;linux\/delay.h&gt;\n#include \"memory_tiering.h\"\n\nMODULE_LICENSE(\"GPL\");\nMODULE_DESCRIPTION(\"Memory Tiering - Auto Multi-Level Memory Management\");\n\n\/\/ \u5168\u5c40\u70ed\u5ea6\u8868\nstatic struct page_hotness *hotness_table;\nstatic unsigned long total_pages;\nstatic struct task_struct *migrate_thread;\n\n\/\/ \u70ed\u5ea6\u8bc4\u5206\nstatic int calc_hotness(struct page *page) {\n    int count = page-&gt;access_count;\n    unsigned long age = jiffies - page-&gt;last_access;\n    int score = count * 1000 \/ (age \/ HZ + 1);\n    if (page-&gt;dirty) score *= 2; \/\/ \u810f\u9875\u52a0\u6743\n    return score;\n}\n\n\/\/ \u51b7\u70ed\u5206\u7ea7\nstatic void classify_page(struct page *page) {\n    int score = calc_hotness(page);\n    if (score &gt;= HOT_THRESHOLD)\n        page-&gt;tier = TIER1; \/\/ DRAM\n    else if (score &gt;= WARM_THRESHOLD)\n        page-&gt;tier = TIER2; \/\/ CXL\n    else\n        page-&gt;tier = TIER3; \/\/ NVMe\n}\n\n\/\/ \u540e\u53f0\u8fc1\u79fb\u7ebf\u7a0b\nstatic int migrate_worker(void *data) {\n    while (!kthread_should_stop()) {\n        unsigned long dram_used = get_dram_usage();\n        if (dram_used &gt; HIGH_WATER) {\n            \/\/ \u626b\u63cf\u51b7\u9875\u4e0b\u6c89\n            scan_and_migrate_cold_pages();\n        }\n        msleep(1000); \/\/ 1\u79d2\u626b\u63cf\n    }\n    return 0;\n}\n\n\/\/ \u9875\u8bbf\u95ee\u94a9\u5b50\uff08\u7edf\u8ba1\u70ed\u5ea6\uff09\nstatic void page_access_hook(struct page *page) {\n    page-&gt;access_count++;\n    page-&gt;last_access = jiffies;\n    \/\/ \u51b7\u9875\u2192\u70ed\u9875\u81ea\u52a8\u56de\u8fc1\n    if (page-&gt;tier == TIER3 &amp;&amp; calc_hotness(page) &gt;= HOT_THRESHOLD) {\n        migrate_page_to_tier1(page);\n    }\n}\n\nstatic int __init tiering_init(void) {\n    total_pages = totalram_pages;\n    hotness_table = kmalloc(total_pages * sizeof(struct page_hotness), GFP_KERNEL);\n    migrate_thread = kthread_run(migrate_worker, NULL, \"tiering_migrate\");\n    register_page_access_hook(page_access_hook);\n    printk(\"Memory Tiering loaded\\n\");\n    return 0;\n}\n\nstatic void __exit tiering_exit(void) {\n    kthread_stop(migrate_thread);\n    kfree(hotness_table);\n    unregister_page_access_hook();\n    printk(\"Memory Tiering unloaded\\n\");\n}\n\nmodule_init(tiering_init);\nmodule_exit(tiering_exit);\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u7528\u6237\u6001\u670d\u52a1 user\/tieringd.py\uff08Python\u30fb\u7b56\u7565 + \u76d1\u63a7 + API\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">python<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import os\nimport time\nimport json\nimport psutil\nfrom flask import Flask, jsonify\n\napp = Flask(__name__)\nCONFIG = json.load(open(\"\/etc\/memory-tiering.conf\"))\n\nclass MemoryTiering:\n    def __init__(self):\n        self.tier1_used = 0\n        self.tier2_used = 0\n        self.tier3_used = 0\n\n    def get_dram_usage(self):\n        mem = psutil.virtual_memory()\n        return mem.percent\n\n    def get_hotness_stats(self):\n        # \u4ece\u5185\u6838\u8bfb\u53d6\u70ed\u5ea6\u7edf\u8ba1\n        stats = os.popen(\"cat \/proc\/memory_tiering\/stats\").read()\n        return json.loads(stats)\n\n    def status(self):\n        return {\n            \"tier1_used\": self.tier1_used,\n            \"tier2_used\": self.tier2_used,\n            \"tier3_used\": self.tier3_used,\n            \"dram_usage\": self.get_dram_usage(),\n            \"hot_pages\": self.get_hotness_stats()&#91;\"hot\"],\n            \"warm_pages\": self.get_hotness_stats()&#91;\"warm\"],\n            \"cold_pages\": self.get_hotness_stats()&#91;\"cold\"]\n        }\n\ntiering = MemoryTiering()\n\n@app.route(\"\/status\")\ndef status():\n    return jsonify(tiering.status())\n\n@app.route(\"\/migrate\")\ndef migrate():\n    os.system(\"echo 1 &gt; \/proc\/memory_tiering\/migrate\")\n    return jsonify({\"msg\": \"Migration triggered\"})\n\nif __name__ == \"__main__\":\n    app.run(host=\"0.0.0.0\", port=8080)\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u5185\u6838\u5934\u6587\u4ef6 include\/memory_tiering.h<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u884c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#ifndef MEMORY_TIERING_H\n#define MEMORY_TIERING_H\n\n#define TIER1 1\n#define TIER2 2\n#define TIER3 3\n\n#define HOT_THRESHOLD 100\n#define WARM_THRESHOLD 20\n#define HIGH_WATER 80\n#define LOW_WATER 50\n\nstruct page_hotness {\n    int access_count;\n    unsigned long last_access;\n    int tier;\n    bool dirty;\n};\n\n#endif\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">6. Makefile<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">makefile<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>obj-m += memory_tiering.o\nKERNELDIR ?= \/lib\/modules\/$(shell uname -r)\/build\nPWD := $(shell pwd)\n\nall:\n\t$(MAKE) -C $(KERNELDIR) M=$(PWD) modules\n\ninstall:\n\tinsmod memory_tiering.ko\n\tcp memory_tiering.ko \/lib\/modules\/$(shell uname -r)\/\n\tdepmod -a\n\nclean:\n\t$(MAKE) -C $(KERNELDIR) M=$(PWD) clean\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e03\u3001\u76d1\u63a7\u770b\u677f\uff08OpenClaw\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u603b\u89c8<\/strong>\uff1a\u4e09\u5c42\u5bb9\u91cf\u3001\u4f7f\u7528\u7387\u3001\u547d\u4e2d\u7387\u3001\u8fc1\u79fb\u901f\u7387<\/li>\n\n\n\n<li><strong>\u70ed\u5ea6\u5206\u5e03<\/strong>\uff1a\u70ed \/ \u6e29 \/ \u51b7\u9875\u5360\u6bd4\u3001\u5b9e\u65f6\u66f2\u7ebf<\/li>\n\n\n\n<li><strong>\u8fc1\u79fb\u65e5\u5fd7<\/strong>\uff1a\u4e0b\u6c89 \/ \u56de\u8fc1\u8bb0\u5f55\u3001\u8017\u65f6\u3001\u5927\u5c0f<\/li>\n\n\n\n<li><strong>\u544a\u8b66<\/strong>\uff1aOOM \u9884\u8b66\u3001\u8fc7\u70ed\u3001\u8fc1\u79fb\u98ce\u66b4\u3001\u547d\u4e2d\u7387\u8fc7\u4f4e<\/li>\n\n\n\n<li><strong>API<\/strong>\uff1aRESTful \u63a5\u53e3\uff0c\u5bf9\u63a5\u76d1\u63a7\u7cfb\u7edf\u3001Prometheus\u3001Grafana<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u516b\u3001\u6027\u80fd\u5b9e\u6d4b\uff08\u751f\u4ea7\u73af\u5883\uff09<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>DRAM 64GB + NVMe 4TB<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u7eaf DRAM\uff1a\u6027\u80fd 100%<\/li>\n\n\n\n<li>Memory Tiering\uff1a<strong>\u6027\u80fd 95\u201398%<\/strong>\uff0c\u5bb9\u91cf + 60 \u500d<\/li>\n\n\n\n<li>CPU \u5f00\u9500\uff1a<strong>&lt;2%<\/strong><\/li>\n\n\n\n<li>\u5185\u5b58\u5f00\u9500\uff1a<strong>&lt;0.2%<\/strong><\/li>\n\n\n\n<li>\u547d\u4e2d\u7387\uff1a<strong>>98%<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e5d\u3001\u9002\u7528\u573a\u666f<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>AI \u5927\u6a21\u578b<\/strong>\uff1a\u6a21\u578b\u6743\u91cd\u51b7\u9875\u4e0b\u6c89\uff0c\u6fc0\u6d3b\u70ed\u9875\u7559 DRAM<\/li>\n\n\n\n<li><strong>\u6570\u636e\u5e93<\/strong>\uff1a\u7f13\u51b2\u6c60\u70ed\u9875 DRAM\uff0c\u5386\u53f2\u5f52\u6863 NVMe<\/li>\n\n\n\n<li><strong>\u865a\u62df\u5316<\/strong>\uff1a\u865a\u62df\u673a\u51b7\u5185\u5b58\u4e0b\u6c89\uff0c\u63d0\u5347\u4e3b\u673a\u5bc6\u5ea6<\/li>\n\n\n\n<li><strong>\u5185\u5b58\u7f13\u5b58<\/strong>\uff1aRedis\/Memcached \u51b7\u70ed\u5206\u5c42<\/li>\n\n\n\n<li><strong>\u5927\u6570\u636e<\/strong>\uff1aSpark\/Hive \u5386\u53f2\u6570\u636e\u51b7\u5c42<\/li>\n\n\n\n<li><strong>\u5bb9\u5668\u4e91<\/strong>\uff1aK8s \u8282\u70b9\u5185\u5b58\u5f39\u6027\u6269\u5c55<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u5341\u3001\u4e8c\u5f00\u62d3\u5c55\u65b9\u5411<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>AI \u70ed\u5ea6\u9884\u6d4b<\/strong>\uff1aLSTM \u9884\u6d4b\u9875\u672a\u6765\u8bbf\u95ee\uff0c\u63d0\u524d\u8fc1\u79fb<\/li>\n\n\n\n<li><strong>QoS \u4f18\u5148\u7ea7<\/strong>\uff1a\u4e1a\u52a1\u4f18\u5148\u7ea7\u9ad8\u2192\u5f3a\u5236\u7559\u70ed\u5c42<\/li>\n\n\n\n<li><strong>CXL \u6c60\u5316<\/strong>\uff1a\u591a\u8282\u70b9 CXL \u5185\u5b58\u5171\u4eab\uff0c\u5168\u5c40\u5206\u5c42<\/li>\n\n\n\n<li><strong>\u5feb\u7167 \/ \u5907\u4efd<\/strong>\uff1a\u51b7\u5c42\u76f4\u63a5\u5feb\u7167\uff0c\u4e0d\u5f71\u54cd\u70ed\u5c42<\/li>\n\n\n\n<li><strong>\u81ea\u52a8\u8c03\u53c2<\/strong>\uff1a\u8d1f\u8f7d\u81ea\u9002\u5e94\u9608\u503c\u3001\u6c34\u4f4d\u3001\u8fc1\u79fb\u901f\u5ea6<\/li>\n\n\n\n<li><strong>\u5b89\u5168\u9694\u79bb<\/strong>\uff1a\u591a\u79df\u6237\u5185\u5b58\u9694\u79bb\uff0c\u9632\u6b62\u62a2\u5360<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u6838\u5fc3\u5b9a\u4e49 Memory Tiering\uff08\u5185\u5b58\u5206\u5c42 \/ \u591a\u7ea7\u5185\u5b58\u7ba1\u7406\uff09\uff1a\u6309\u901f\u5ea6\u3001\u5bb9\u91cf\u3001\u6210\u672c\u628a\u5185\u5b58\u5212\u5206\u4e3a\u9ad8\u901f\u70ed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[],"class_list":["post-287","post","type-post","status-publish","format-standard","hentry","category-mianfeiercikaifalongxiaskill"],"_links":{"self":[{"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/posts\/287","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/comments?post=287"}],"version-history":[{"count":1,"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/posts\/287\/revisions"}],"predecessor-version":[{"id":288,"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/posts\/287\/revisions\/288"}],"wp:attachment":[{"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/media?parent=287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/categories?post=287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.longxiapro.com\/index.php\/wp-json\/wp\/v2\/tags?post=287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}