Intel\u306eLinux\u30a8\u30f3\u30b8\u30cb\u30a2\u3067\u3042\u308bRicardo Neri\u6c0f\u306e\u30d1\u30c3\u30c1\u306b\u3088\u308b\u3068\u3001\u65b0\u3057\u3044\u518d\u5e30\u304b\u306fBigger P\u30b3\u30a2(\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30b3\u30a2)\u3068Bug E\u30b3\u30a2(\u52b9\u7387\u30b3\u30a2)\u9593\u306e\u30bf\u30b9\u30af\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u306e\u6539\u5584\u3092\u884c\u3046\u3082\u306e\u306e\u3088\u3046\u3067\u3059\u3002<\/p>\n
On processors with a mixture of higher-frequency SMT cores and lower- frequency non-SMT cores (such as Intel hybrid processors), a lower- priority CPU pulls tasks from the higher-priority cores if more than one SMT sibling is busy.<\/p>\n
Do not use different priorities for each SMT sibling. Instead, tweak the asym_packing load balancer to recognize SMT cores with more than one busy sibling and let lower-priority CPUs pull tasks.<\/p>\n
Removing these artificial priorities avoids superfluous migrations and lets lower-priority cores inspect all SMT siblings for the busiest queue.<\/p>\n
\u5468\u6ce2\u6570\u306e\u9ad8\u3044SMT\u30b3\u30a2\u3068\u5468\u6ce2\u6570\u306e\u4f4e\u3044\u975eSMT\u30b3\u30a2\u304c\u6df7\u5728\u3059\u308b\u30d7\u30ed\u30bb\u30c3\u30b5(Intel \u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30d7\u30ed\u30bb\u30c3\u30b5\u306a\u3069)\u3067\u306f\u3001\u8907\u6570\u306eSMT\u5144\u5f1f\u30b3\u30a2\u304c\u30d3\u30b8\u30fc\u72b6\u614b\u306e\u5834\u5408\u3001\u512a\u5148\u5ea6\u306e\u4f4e\u3044CPU\u304c\u512a\u5148\u5ea6\u306e\u9ad8\u3044\u30b3\u30a2\u304b\u3089\u30bf\u30b9\u30af\u3092\u5f15\u304d\u629c\u304d\u307e\u3059\u3002<\/p>\n
\u5404SMT\u5144\u5f1f\u306b\u7570\u306a\u308b\u512a\u5148\u9806\u4f4d\u3092\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u305d\u306e\u4ee3\u308f\u308a\u3001asym_packing\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u3092\u5fae\u8abf\u6574\u3057\u3066\u30012\u3064\u4ee5\u4e0a\u306e\u30d3\u30b8\u30fc\u306a\u5144\u5f1f\u3092\u6301\u3064SMT\u30b3\u30a2\u3092\u8a8d\u8b58\u3057\u3001\u3088\u308a\u4f4e\u3044\u512a\u5148\u5ea6\u306eCPU\u306b\u30bf\u30b9\u30af\u3092\u5f15\u3063\u5f35\u3089\u305b\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306a\u4eba\u70ba\u7684\u306a\u512a\u5148\u9806\u4f4d\u3092\u53d6\u308a\u9664\u304f\u3053\u3068\u3067\u3001\u4f59\u8a08\u306a\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u56de\u907f\u3057\u3001\u4f4e\u512a\u5148\u9806\u4f4d\u306e\u30b3\u30a2\u304c\u6700\u3082\u5fd9\u3057\u3044\u30ad\u30e5\u30fc\u3092\u63a2\u3059\u305f\u3081\u306b\u3059\u3079\u3066\u306eSMT\u5144\u5f1f\u3092\u691c\u67fb\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\n<\/p><\/blockquote>\n
\u3053\u306e\u65b0\u3057\u3044\u6700\u9069\u5316\u306b\u3088\u3063\u3066Linux\u306fWindows 11\u3092\u4e0a\u56de\u308b\u6027\u80fd\u3092\u767a\u63ee\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001Intel\u306e\u7b2c13\u4e16\u4ee3Raptor Lake\u3084\u3001\u7b2c14\u4e16\u4ee3Meteor Lake CPU\u306a\u3069\u3001\u5c06\u6765\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30fb\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30fb\u30d9\u30fc\u30b9\u306eCPU\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u3082\u6700\u9069\u5316\u304c\u751f\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u898b\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Intel\u306fArchitecture Day 2021\u3067Alder Lake CPU\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u8a73\u7d30\u3092\u767a\u8868\u3057\u305f\u969b\u3001Windows 11\u306f\u3001\u30bf\u30b9\u30af\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u3092\u652f\u63f4\u3059\u308bIntel Thread Director\u6280\u8853 […]<\/p>\n","protected":false},"author":2,"featured_media":101759,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[75],"tags":[37,3298,4387],"class_list":["post-101758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software","tag-linux","tag-windows","tag-windows11"],"_links":{"self":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/101758","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/comments?post=101758"}],"version-history":[{"count":0,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/posts\/101758\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media\/101759"}],"wp:attachment":[{"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/media?parent=101758"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/categories?post=101758"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/softantenna.com\/blog\/wp-json\/wp\/v2\/tags?post=101758"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"Intel](\"https:\/\/softantenna.com\/blog\/wp-content\/uploads\/2021\/11\/intel-core-12th-gen.jpg\" "\\"intel-core-12th-gen.jpg\\"")
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