{"id":92298,"date":"2024-03-26T10:53:08","date_gmt":"2024-03-26T02:53:08","guid":{"rendered":"http:\/\/lrxjmw.cn\/?p=92298"},"modified":"2024-03-26T10:53:08","modified_gmt":"2024-03-26T02:53:08","slug":"intel-meltdown-spectre","status":"publish","type":"post","link":"https:\/\/lrxjmw.cn\/intel-meltdown-spectre.html","title":{"rendered":"Intel\u53c8\u88ab\u5b89\u5168\u4e13\u5bb6\u66dd\u6f0f\u6d1e"},"content":{"rendered":"<p>\u5c31\u5728\u82f1\u7279\u5c14\u8fd8\u5728\u4e3a\u4e86\u4e0a\u4e00\u4e2a Core \u5904\u7406\u5668\u5b89\u5168\u6027\u95ee\u9898\u7126\u5934\u70c2\u989d\u7684\u540c\u65f6\uff0c\u73b0\u5728\u53c8\u88ab\u5b89\u5168\u4e13\u5bb6\u4eec\u53d1\u73b0\u4e86\u53e6\u4e00\u4e2a\u6f0f\u6d1e\uff0c\u800c\u4e14\u8fd9\u4e2a\u6f0f\u6d1e\u76f8\u5bf9\u8981\u4e25\u91cd\u66f4\u591a\uff0c\u5f71\u54cd\u8303\u56f4\u66f4\u662f\u5e7f\u53ca\u8fd1\u4e8c\u5341\u5e74\u5de6\u53f3\u6240\u6709\u7684 Intel \u5904\u7406\u5668\u548c\u90e8\u4efd ARM\u3001AMD \u5904\u7406\u5668\u3002\u51c6\u786e\u7684\u8bf4\uff0c\u8fd9\u6b21\u7684\u6f0f\u6d1e\u5206\u6210\u4e24\u7c7b\uff0c\u5206\u522b\u53d6\u540d\u4e3a\u300cMeltdown\u300d\u4e0e\u300cSpectre\u300d\uff0c\u4e24\u8005\u90fd\u4e0e CPU \u672c\u8eab\u7684\u786c\u4ef6\u8bbe\u8ba1\u6709\u5173\uff0c\u5206\u522b\u5229\u7528\u4e86\u5904\u7406\u5668\u7684\u300c\u4e71\u5e8f\u6267\u884c\u300d\u673a\u80fd\u4e0e\u300c\u5206\u652f\u9884\u6d4b\u300d\u673a\u80fd\uff0c\u8ba9\u6076\u610f\u4ee3\u7801\u53ef\u4ee5\u4ece CPU \u5f53\u4e2d\u5077\u53d6\u672c\u5e94\u53d7\u4fdd\u62a4\u7684\u8d44\u6599\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/lrxjmw.cn\/wp-content\/uploads\/2018\/01\/s-m-logos.jpg\" alt=\"\" width=\"1800\" height=\"959\" class=\"aligncenter size-full wp-image-92299\" srcset=\"https:\/\/lrxjmw.cn\/wp-content\/uploads\/2018\/01\/s-m-logos.jpg 1800w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2018\/01\/s-m-logos-300x160.jpg 300w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2018\/01\/s-m-logos-768x409.jpg 768w, https:\/\/lrxjmw.cn\/wp-content\/uploads\/2018\/01\/s-m-logos-1024x546.jpg 1024w\" sizes=\"auto, (max-width: 1800px) 100vw, 1800px\" \/><\/p>\n<p>Meltdown \u662f\u4e24\u8005\u5f53\u4e2d\u76f8\u5bf9\u6bd4\u8f83\u5bb9\u6613\u88ab\u5229\u7528\u7684\u4e00\u4e2a\uff0c\u56e0\u6b64\u4e25\u91cd\u6027\u4e5f\u8981\u5927\u5f97\u591a\u3002\u6b63\u5e38\u6765\u8bf4\uff0c\u6bcf\u4e00\u4e2a\u8fdb\u7a0b\u90fd\u662f\u72ec\u7acb\u7684\uff0c\u4e0d\u5e94\u8be5\u80fd\u770b\u5230\u5176\u4ed6\u8fdb\u7a0b\u7684\u8d44\u6599\uff0c\u4f46\u5b89\u5168\u4e13\u5bb6\u53d1\u73b0\uff0c\u5728\u82f1\u7279\u5c14\u7684\u5904\u7406\u5668\uff08\u548c ARM Cortex-A75\uff09\u4e2d\uff0c\u56e0\u4e3a\u4e71\u5e8f\u6267\u884c\uff08Out-of-order execution\uff09\u5728\u5904\u7406\u8d44\u6599\u65f6\u662f\u5c06\u6240\u6709\u8fdb\u7a0b\u6df7\u5728\u4e00\u8d77\uff0c\u56e0\u6b64\u7528\u7279\u522b\u7f16\u5199\u7684\u4ee3\u7801\uff0c\u662f\u53ef\u4ee5\u6307\u5b9a\u4f4d\u7f6e\uff0c\u300c\u5077\u53d6\u300d\u5176\u4ed6\u8fdb\u7a0b\u7684\u8d44\u6599\u7684\u3002\u7531\u4e8e\u8fd9\u662f\u4e2a\u786c\u4ef6\u4e0a\u7684\u8bbe\u8ba1\u7455\u75b5\uff0c\u56e0\u6b64\u65e0\u8bba\u662f\u4ec0\u4e48\u64cd\u4f5c\u7cfb\u7edf\uff0c\u53ea\u8981\u662f\u6709\u4e71\u5e8f\u6267\u884c\u7684\u5904\u7406\u5668\uff08\u57fa\u672c\u4e0a\u6240\u6709 1995 \u5e74\u540e\u7684 Intel \u5904\u7406\u5668\u90fd\u6709\uff09\u90fd\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<p>Spectre \u5219\u662f\u96be\u5ea6\u9ad8\u4e00\u70b9\u7684\u53e6\u4e00\u79cd\u624b\u6bb5\uff0c\u64cd\u4f5c\u5904\u7406\u5668\u7684\u5206\u652f\u9884\u6d4b\uff08Branch Prediction\uff09\u673a\u80fd\uff0c\u6b3a\u9a97\u53d7\u5bb3\u7684\u8fdb\u7a0b\u5c06\u6307\u5b9a\u4f4d\u7f6e\u7684\u8d44\u6599\u653e\u51fa\u6765\u3002\u8fd9\u4e2a\u6f0f\u6d1e\u5c31\u4e0d\u9650\u4e8e Intel \u5904\u7406\u5668\uff0c\u800c\u662f AMD \u548c ARM \u5904\u7406\u5668\u90fd\u6709\u4e2d\u62db\u7684\u53ef\u80fd\u3002\u4e0d\u8fc7\u7531\u4e8e Spectre \u64cd\u4f5c\u56f0\u96be\uff0c\u56e0\u6b64\u987e\u8651\u7a0d\u5fae\u5c0f\u4e00\u70b9\uff0c\u4f46\u540c\u65f6\u60f3\u8981\u907f\u5f00\u7684\u8bdd\u8981\u7531\u64cd\u4f5c\u7cfb\u7edf\u548c\u8f6f\u4ef6\u672c\u8eab\u53cc\u7ba1\u9f50\u4e0b\u624d\u884c\uff0c\u6240\u4ee5\u60f3\u8981\u5b8c\u5168\u9632\u5835\u66f4\u52a0\u56f0\u96be\u3002<\/p>\n<p>\u76ee\u524d\u8fd8\u6ca1\u6709\u5229\u7528\u8fd9\u4e24\u4e2a\u6f0f\u6d1e\u7684\u6848\u4f8b\u53d1\u751f\u3002\u4ee5\u957f\u8fdc\u6765\u770b\uff0c\u6240\u6709\u672a\u6765\u63a8\u51fa\u7684\u5904\u7406\u5668\u52bf\u5fc5\u90fd\u5c06\u4ece\u786c\u4ef6\u4e0a\u4fee\u6b63\u8fd9\u4e24\u4e2a\u6f0f\u6d1e\uff0c\u4f46\u5f53\u4e0b\u6765\u8bf4\uff0c\u53ea\u80fd\u9760\u8f6f\u4ef6\u7684\u65b9\u5f0f\u6765\u5f25\u8865\uff0c\u53ea\u662f\u63a8\u6d4b\u8fd9\u6709\u53ef\u80fd\u4f1a\u5927\u5e45\u5f71\u54cd\u5e02\u9762\u4e0a\u5904\u7406\u5668\u7684\u6027\u80fd\uff0c\u7279\u522b\u662f Meltdown\u3002\u786e\u5207\u7684\u5f71\u54cd\u7a0b\u5ea6\u53d6\u51b3\u4e8e\u5de5\u4f5c\u7684\u79cd\u7c7b\uff0c\u4e00\u822c\u4eba\u4e0a\u7f51\u6253\u6e38\u620f\u4e0d\u4e00\u5b9a\u4f1a\u6709\u5f88\u660e\u663e\u7684\u611f\u53d7\uff0c\u4f46\u4e91\u7aef\u5e94\u7528\uff0c\u5c24\u5176\u662f\u865a\u62df\u673a\u5668\uff0c\u6709\u53ef\u80fd\u6027\u80fd\u4f1a\u6253\u4e0a 5%~30% \u7684\u6298\u6263\u3002<\/p>\n<p>\u5fae\u8f6f\u8868\u793a\u5df2\u7ecf\u91ca\u51fa\u66f4\u65b0\u7ed9\u4e00\u822c\u6c11\u4f17\uff0c\u5efa\u8bae\u5927\u5bb6\u7acb\u5373\u5b89\u88c5\uff0c\u540c\u65f6 Azure \u670d\u52a1\u5668\u5e73\u53f0\u4e5f\u5df2\u66f4\u65b0\u5b8c\u6bd5\uff0c\u300c\u5927\u90e8\u4efd\u300d\u7684\u5ba2\u6237\u5e94\u8be5\u4e0d\u4f1a\u611f\u53d7\u5230\u901f\u5ea6\u6709\u660e\u663e\u7684\u5dee\u5f02\u3002\u82f9\u679c\u8fd9\u8fb9\u5219\u662f\u867d\u7136\u6ca1\u6709\u5b98\u65b9\u58f0\u660e\uff0c\u4f46\u5b89\u5168\u4e13\u5bb6 Alex Ionescu \u6307\u51fa\u5728 macOS 10.13.2 \u66f4\u65b0\u51fa\u5df2\u7ecf\u5305\u542b\u76f8\u5173\u7684\u4fee\u6b63\uff0c\u5982\u679c\u8fd8\u6ca1\u66f4\u65b0\u5230 10.13.2 \u7684\u670b\u53cb\u4e5f\u8bf7\u5c3d\u5feb\u66f4\u65b0\u3002\u6700\u540e\uff0cGoogle \u8868\u793a\u7edd\u5927\u90e8\u4efd\u7684 Android \u673a\u5668\u4e0a\u8981\u5229\u7528\u8fd9\u4e2a\u6f0f\u6d1e\u662f\u300c\u56f0\u96be\u800c\u53d7\u9650\u300d\u7684\uff0c\u4f46\u4f9d\u7136\u4e3a\u81ea\u5bb6\u7684\u5168\u7cfb\u5217\u624b\u673a\u63d0\u4f9b\u4e86\u66f4\u65b0\uff0c\u5e76\u4f1a\u5168\u529b\u534f\u52a9\u5408\u4f5c\u7684\u624b\u673a\u5546\u9488\u5bf9\u6027\u5730\u5f3a\u5316\u7cfb\u7edf\u3002<\/p>\n<p>\u7ec8\u5f52\u6765\u8bf4\uff0c\u5bf9\u4e8e\u6211\u4eec\u4e00\u822c\u4eba\u9664\u4e86\u5c3d\u5feb\u66f4\u65b0\u7535\u8111\uff0c\u5e76\u548c\u5f80\u5e38\u4e00\u6837\u5c0f\u5fc3\u522b\u4e71\u70b9\u94fe\u63a5\u6216\u4e0b\u8f7d\u6587\u4ef6\u4e4b\u5916\uff0c\u80fd\u505a\u7684\u4e8b\u5e76\u4e0d\u591a\u3002\u5012\u662f AMD \u4f3c\u4e4e\u6210\u4e3a\u4e86\u6574\u8d77\u4e8b\u4ef6\u6700\u5927\u7684\u53d7\u76ca\u8005\uff0c\u5728\u8fd9\u4e2a Intel \u548c AMD \u7ade\u4e89\u6e10\u8d8b\u767d\u70ed\u5316\u7684\u65f6\u4ee3\uff0c\u5982\u679c\u8bc1\u5b9e\u8f6f\u4ef6\u89e3\u51b3\u65b9\u6cd5\u5bf9 Intel \u5904\u7406\u5668\u6027\u80fd\u6709\u53ef\u611f\u53d7\u5230\u7684\u5f71\u54cd\u7684\u8bdd\uff0c\u4f3c\u4e4e\u8ba9\u5929\u79e4\u5411 AMD \u503e\u659c\u4e86\u4e0d\u5c11\u554a\u3002<\/p>\n<blockquote>\n<p style=\"text-align: left; color: #88a6a4;\">\u539f\u6587\u6765\u81ea\uff1a<a href=\"https:\/\/cn.engadget.com\/2018\/01\/04\/meltdown-spectre-microsoft-intel-google-apple\/\" target=\"_blank\" rel=\"noopener\">https:\/\/cn.engadget.com\/2018\/01\/04\/meltdown-spectre-microsoft-intel-google-apple\/<\/a><\/p>\n<p style=\"text-align: left; color: #88a6a4;\">\u672c\u6587\u5730\u5740\uff1a<a href=\"http:\/\/lrxjmw.cn\/intel-meltdown-spectre.html\" target=\"_blank\" rel=\"noopener\">http:\/\/lrxjmw.cn\/intel-meltdown-spectre.html<\/a><span style=\"float: right;\">\u7f16\u8f91\uff1a\u6e05\u84b8github\uff0c\u5ba1\u6838\u5458\uff1a\u9004\u589e\u5b9d<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u5c31\u5728\u82f1\u7279\u5c14\u8fd8\u5728\u4e3a\u4e86\u4e0a\u4e00\u4e2a Core \u5904\u7406\u5668\u5b89\u5168\u6027\u95ee\u9898\u7126\u5934\u70c2\u989d\u7684\u540c\u65f6\uff0c\u73b0\u5728\u53c8\u88ab\u5b89\u5168\u4e13\u5bb6\u4eec\u53d1\u73b0\u4e86\u53e6\u4e00\u4e2a\u6f0f\u6d1e\uff0c\u800c\u4e14\u8fd9 [&hellip;]<\/p>\n","protected":false},"author":317,"featured_media":92300,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-92298","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/92298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/317"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=92298"}],"version-history":[{"count":3,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/92298\/revisions"}],"predecessor-version":[{"id":290545,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/92298\/revisions\/290545"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/92300"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=92298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=92298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=92298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}