{"id":789,"date":"2020-08-03T12:01:33","date_gmt":"2020-08-03T04:01:33","guid":{"rendered":"http:\/\/www.gbase8.cn\/?p=789"},"modified":"2020-09-15T08:15:25","modified_gmt":"2020-09-15T00:15:25","slug":"gbase-8a%e6%95%b0%e6%8d%ae%e5%ba%93%e9%9b%86%e7%be%a4numa%e5%af%bc%e8%87%b4cpu%e7%9a%84sys%e5%8d%a0%e7%94%a8%e9%ab%98%e7%9a%84%e5%8e%9f%e5%9b%a0%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/789","title":{"rendered":"\u5357\u5927\u901a\u7528GBase 8a\u6570\u636e\u5e93\u96c6\u7fa4NUMA\u5bfc\u81f4CPU\u7684SYS\u5360\u7528\u9ad8\u7684\u539f\u56e0\u5206\u6790"},"content":{"rendered":"<p>x86\u67b6\u6784\u4e0b\u7684\u6570\u636e\u5e93\u670d\u52a1\u5668\uff0c\u5305\u62ecGBase8a\u96c6\u7fa4\u670d\u52a1\u5668\uff0c\u9700\u8981\u5173\u95edNUMA\u53c2\u6570\uff08vm.zone_reclaim_mode\uff09\uff0c\u907f\u514dCPU\u7684SYS\u5360\u7528\u9ad8\u3002<\/p>\n\n\n\n<p>NUMA\uff08Non-Uniform Memory Access\uff09\u67b6\u6784\u662f\u4e3a\u4e86\u89e3\u51b3\u591aCPU\u4e0b\u5185\u5b58\u8bbf\u95ee\u51b2\u7a81\uff0c\u7b80\u5355\u6765\u8bf4\u4e0d\u5728\u5c06\u6574\u4e2a\u7269\u7406\u5185\u5b58\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\uff0c\u800c\u662f\u6839\u636e\u4e0d\u540c\u7684CPU\u533a\u5206\u4e0d\u540c\u7684\u5185\u5b58\u5757\u513f\uff0c\u59822\u9897CPU\u6bcf\u9897CPU\u4f7f\u752864G\u5185\u5b58\u3002<br>\u5f53NUMA\u53c2\u6570zone_reclaim_mode\u5728\u8bbe\u7f6e\u4e3a1\u65f6\uff0c\u5185\u6838\u5c06\u8981\u6c42\u591a\u8defCPU\u5c3d\u91cf\u4ece\u8ddd\u79bb\u8f83\u8fd1\u7684\u7cfb\u7edf\u5185\u5b58\u8282\u70b9\uff08\u670d\u52a1\u5668\u7684\u6574\u4f53\u5185\u5b58\u5728numa\u67b6\u6784\u4e0b\u5c06\u88ab\u5206\u6210\u82e5\u5e72\u4e2a\u8282\u70b9\uff09\u5206\u914d\u5185\u5b58\u800c\u4e0d\u662f\u5728\u6574\u4e2a\u670d\u52a1\u5668\u53ef\u8bbf\u95ee\u5185\u5b58\u7684\u8303\u56f4\u5185\u8fdb\u884c\u5185\u5b58\u5206\u914d\uff0c\u56e0\u6b64\u5728\u8f83\u9ad8\u5185\u5b58\u5360\u7528\u538b\u529b\u4e0b\u5185\u5b58\u7533\u8bf7\u4f1a\u89e6\u53d1\u5185\u5b58\u9891\u7e41\u56de\u6536\u6574\u7406\u7684\u673a\u5236\u4e25\u91cd\u5f71\u54cd\u4e86\u7cfb\u7edf\u6574\u4f53\u6027\u80fd\uff08\u957f\u671f\u5904\u4e8e\u5185\u6838\u6001sys\u5f88\u9ad8\uff09\u3002\u8fdb\u800c\u53ef\u80fd\u5bfc\u81f4SQL\u5361\u987f\u95ee\u9898\u7684\u53d1\u751f\u3002<\/p>\n\n\n\n<p>NUMA\u53c2\u6570\u7684\u5f00\u5173\u662f\u5728\u7cfb\u7edf\u5b89\u88c5\u65f6\u52a8\u6001\u8bbe\u7f6e\u7684\uff0c\u901a\u8fc7\u5224\u65ad\u5404\u4e2acpu\u4e4b\u95f4\u7684distance\uff08\u5927\u6982\u5c31\u662f\u901a\u8baf\u8017\u65f6\uff09&gt;20 ,\u5c31\u6253\u5f00NUMA\u53c2\u6570\uff0c\u53cd\u4e4b\u5c31\u4e0d\u6253\u5f00\u3002<br>\u901a\u8fc7\u547d\u4ee4numactl --hardware \u53ef\u4ee5\u67e5\u770bCPU\u548c\u5185\u5b58\u7684\u8ddd\u79bb\uff0c\u5982\u4e0b\uff1a<br># numactl --hardware<br>available: 2 nodes (0-1)<br>node 0 cpus: 0 2 4 6 8 10 12 14<br>node 0 size: 57298 MB<br>node 0 free: 44157 MB<br>node 1 cpus: 1 3 5 7 9 11 13 15<br>node 1 size: 57344 MB<br>node 1 free: 41773 MB<br>node distances:<br>node 0 1<br>0: 10 20<br>1: 20 10<\/p>\n\n\n\n<p>\u67e5\u770bNUMA\u53c2\u6570\u662f\u5426\u5f00\u542f\uff1a<br>cat \/proc\/sys\/vm\/zone_reclaim_mode<\/p>\n\n\n\n<p>\u8bbe\u7f6eNUMA\u53c2\u6570\u5173\u95ed\uff1a<br>A\u3001\u4fee\u6539\u5f53\u524d\u7cfb\u7edf\u503c<br>echo 0 &gt; \/proc\/sys\/vm\/zone_reclaim_mode<br>B\u3001\u4fee\u6539\u6216\u65b0\u589e\u5230\u914d\u7f6e\u6587\u4ef6\/etc\/sysctl.conf<br>vm.zone_reclaim_mode = 0<\/p>","protected":false},"excerpt":{"rendered":"<p>x86\u67b6\u6784\u4e0b\u7684\u6570\u636e\u5e93\u670d\u52a1\u5668\uff0c\u5305\u62ecGBase8a\u96c6\u7fa4\u670d\u52a1\u5668\uff0c\u9700\u8981\u5173\u95edNUMA\u53c2\u6570\uff08vm.zone_reclaim_mode\uff09\uff0c\u907f\u514dCPU\u7684SYS\u5360\u7528\u9ad8\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,54],"tags":[],"class_list":["post-789","post","type-post","status-publish","format-standard","hentry","category-gbase8a"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=789"}],"version-history":[{"count":2,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/789\/revisions"}],"predecessor-version":[{"id":1303,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/789\/revisions\/1303"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}