{"id":2836,"date":"2024-09-25T04:46:58","date_gmt":"2024-09-25T04:46:58","guid":{"rendered":"https:\/\/tastycounter.net\/index.php\/2024\/09\/25\/linus-torvalds-chap-nhan-ban-nang-cap-hyper-v-cua-microsoft-cac-ban-linux-trong-tuong-lai-se-nhanh-hon\/"},"modified":"2024-09-25T04:46:58","modified_gmt":"2024-09-25T04:46:58","slug":"linus-torvalds-chap-nhan-ban-nang-cap-hyper-v-cua-microsoft-cac-ban-linux-trong-tuong-lai-se-nhanh-hon","status":"publish","type":"post","link":"https:\/\/tastycounter.net\/index.php\/2024\/09\/25\/linus-torvalds-chap-nhan-ban-nang-cap-hyper-v-cua-microsoft-cac-ban-linux-trong-tuong-lai-se-nhanh-hon\/","title":{"rendered":"Linus Torvalds ch\u1ea5p nh\u1eadn b\u1ea3n n\u00e2ng c\u1ea5p Hyper-V c\u1ee7a Microsoft, c\u00e1c b\u1ea3n Linux trong t\u01b0\u01a1ng lai s\u1ebd nhanh h\u01a1n"},"content":{"rendered":"<\/p>\n<div class=\"content-detail textview\">\n<p>Trong khi c\u1ed9ng \u0111\u1ed3ng nh\u1eefng ng\u01b0\u1eddi h\u00e2m m\u1ed9 Windows v\u00e0 c\u00e1c fan c\u1ee7a Linux th\u01b0\u1eddng th\u00edch tham gia v\u00e0o nh\u1eefng \u201ccu\u1ed9c chi\u1ebfn b\u00e0n ph\u00edm n\u1ea3y l\u1eeda\u201d v\u1edbi ch\u1ee7 \u0111\u1ec1 b\u1ea5t t\u1eadn l\u00e0 n\u1ec1n t\u1ea3ng n\u00e0o \u01b0u vi\u1ec7t h\u01a1n, th\u00ec ch\u00ednh nh\u1eefng ng\u01b0\u1eddi \u0111\u1ee9ng sau t\u1ea1o ra c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh n\u00e0y l\u1ea1i hi\u1ec3u r\u00f5 \u0111i\u1ec3m m\u1ea1nh v\u00e0 \u0111i\u1ec3m y\u1ebfu c\u1ee7a nhau. Th\u1eadt v\u1eady, Microsoft c\u0169ng hi\u1ec3u \u0111i\u1ec1u \u0111\u00f3 v\u00e0 th\u1ef1c t\u1ebf l\u00e0 h\u1ecd th\u1eadm ch\u00ed c\u00f2n khuy\u1ebfn kh\u00edch ng\u01b0\u1eddi d\u00f9ng tr\u1ea3i nghi\u1ec7m th\u1eed Linux th\u00f4ng qua ti\u1ec7n \u00edch Windows Subsystem of Linux (WSL).<\/p>\n<p>Kh\u00f4ng ch\u1ec9 v\u1eady, c\u00f4ng ty Redmond c\u00f2n th\u01b0\u1eddng xuy\u00ean th\u00fac \u0111\u1ea9y c\u00e1c b\u1ea3n n\u00e2ng c\u1ea5p nh\u1eb1m c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t Linux ho\u1eb7c c\u1ea3i thi\u1ec7n ch\u1ee9c n\u0103ng c\u1ee7a n\u1ec1n t\u1ea3ng ngu\u1ed3n m\u1edf n\u00e0y. V\u00ed d\u1ee5, v\u00e0o th\u00e1ng 11 n\u0103m 2022, Microsoft \u0111\u00e3 th\u00fac \u0111\u1ea9y h\u1ed7 tr\u1ee3 \u1ea3o h\u00f3a l\u1ed3ng nhau (nested Hyper-V). Th\u00e1ng 9 n\u0103m ngo\u00e1i, gi\u00e1m \u0111\u1ed1c Linux Linus Torvalds \u0111\u00e3 ch\u1ea5p nh\u1eadn c\u00e1c c\u1ea3i ti\u1ebfn Hyper-V li\u00ean quan \u0111\u1ebfn AMD SEV-SNP v\u00e0 Intel TDX do ki\u1ebfn tr\u00fac s\u01b0 tr\u01b0\u1edfng b\u1ed9 ph\u1eadn Azure Machine Learning c\u1ee7a Microsoft Wei Liu \u0111\u1ec1 xu\u1ea5t.<\/p>\n<p>M\u1edbi \u0111\u00e2y, Torvalds \u0111\u00e3 m\u1ed9t l\u1ea7n n\u1eefa ch\u1ea5p nh\u1eadn c\u00e1c b\u1ea3n n\u00e2ng c\u1ea5p Hyper-V m\u1edbi t\u1eeb Microsoft cho Linux 6.12, v\u00e0 m\u1ed9t trong s\u1ed1 ch\u00fang mang \u0111\u1ebfn nh\u1eefng c\u1ea3i ti\u1ebfn \u0111\u1eb7c bi\u1ec7t v\u1ec1 m\u1eb7t hi\u1ec7u su\u1ea5t:<\/p>\n<blockquote>\n<ul>\n<li>T\u1ed1i \u01b0u h\u00f3a th\u1eddi gian kh\u1edfi \u0111\u1ed9ng b\u1eb1ng c\u00e1ch th\u1ef1c hi\u1ec7n \u0111\u1ed3ng th\u1eddi hv_synic_init()<\/li>\n<li>S\u1eed d\u1ee5ng tr\u00ecnh tr\u1ee3 gi\u00fap \u0111\u1ec3 \u0111\u1ecdc c\u00e1c thanh ghi \u0111i\u1ec1u khi\u1ec3n trong hv_snp_boot_ap()<\/li>\n<li>Th\u00eam ki\u1ec3m tra ph\u00e2n b\u1ed5 b\u1ed9 nh\u1edb trong hv_fcopy_start<\/li>\n<\/ul>\n<\/blockquote>\n<p>M\u00f4 t\u1ea3 b\u1ea3n patch gi\u1ea3i th\u00edch c\u00e1ch song song h\u00f3a h\u00e0m hv_synic_init() c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n th\u1eddi gian kh\u1edfi \u0111\u1ed9ng tr\u00ean c\u00e1c b\u1ed9 x\u1eed l\u00fd c\u00f3 nhi\u1ec1u l\u00f5i v\u00e0 n\u00fat NUMA (truy c\u1eadp b\u1ed9 nh\u1edb kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t) nh\u01b0 sau:<\/p>\n<blockquote>\n<p>T\u1ed1i \u01b0u h\u00f3a th\u1eddi gian kh\u1edfi \u0111\u1ed9ng b\u1eb1ng c\u00e1ch th\u1ef1c thi \u0111\u1ed3ng th\u1eddi hv_synic_init()<\/p>\n<p>Hi\u1ec7n t\u1ea1i tr\u00ean m\u1ed9t h\u1ec7 th\u1ed1ng r\u1ea5t l\u1edbn v\u1edbi 1780 CPU, hv_acpi_init() m\u1ea5t kho\u1ea3ng 3 gi\u00e2y \u0111\u1ec3 ho\u00e0n t\u1ea5t. \u0110i\u1ec1u n\u00e0y l\u00e0 do quy tr\u00ecnh kh\u1edfi t\u1ea1o \u0111\u1ed3ng b\u1ed9 tu\u1ea7n t\u1ef1 cho m\u1ed7i CPU \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1edfi hv_synic_init().<\/p>\n<p>L\u00ean l\u1ecbch c\u00e1c t\u00e1c v\u1ee5 n\u00e0y song song \u0111\u1ec3 m\u1ed7i CPU th\u1ef1c thi hv_synic_init() song song \u0111\u1ec3 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a CPU.<\/p>\n<p>Gi\u1ea3i ph\u00e1p n\u00e0y ti\u1ebft ki\u1ec7m kho\u1ea3ng 2 gi\u00e2y th\u1eddi gian kh\u1edfi \u0111\u1ed9ng tr\u00ean h\u1ec7 th\u1ed1ng CPU 1780, c\u1ea3i thi\u1ec7n kho\u1ea3ng 66% logic hi\u1ec7n c\u00f3.<\/p>\n<\/blockquote>\n<p>K\u1ef9 s\u01b0 Saurabh Singh Sengar c\u1ee7a Microsoft m\u1edbi \u0111\u00e2y c\u0169ng \u0111\u00e3 c\u00f3 b\u00e0i thuy\u1ebft tr\u00ecnh v\u1ec1 nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a m\u00ecnh c\u00f3 ti\u00eau \u0111\u1ec1 &#8220;T\u0103ng t\u1ed1c kh\u1edfi \u0111\u1ed9ng h\u1ea1t nh\u00e2n Linux cho c\u00e1c h\u1ec7 th\u1ed1ng \u0111a l\u00f5i l\u1edbn&#8221;, \u0111i s\u00e2u v\u00e0o chi ti\u1ebft c\u1ee7a b\u1ea3n v\u00e1 tr\u00ean v\u00e0 c\u00e1c t\u1ed1i \u01b0u h\u00f3a kh\u00e1c \u0111ang \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y b\u00e0i thuy\u1ebft tr\u00ecnh n\u00e0y tr\u00ean <a href=\"https:\/\/quantrimang.com\/url?u=aHR0cHM6Ly9scGMuZXZlbnRzL2V2ZW50LzE4L2NvbnRyaWJ1dGlvbnMvMTgxNy8%3D\" target=\"_blank\" rel=\"nofollow noopener\">trang web Linux Plumbers Conference (LPC)<\/a>.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Trong khi c\u1ed9ng \u0111\u1ed3ng nh\u1eefng ng\u01b0\u1eddi h\u00e2m m\u1ed9 Windows v\u00e0 c\u00e1c fan c\u1ee7a Linux th\u01b0\u1eddng th\u00edch tham gia v\u00e0o nh\u1eefng \u201ccu\u1ed9c chi\u1ebfn b\u00e0n ph\u00edm n\u1ea3y l\u1eeda\u201d v\u1edbi ch\u1ee7 \u0111\u1ec1 b\u1ea5t t\u1eadn l\u00e0 n\u1ec1n t\u1ea3ng n\u00e0o \u01b0u vi\u1ec7t h\u01a1n, th\u00ec ch\u00ednh nh\u1eefng ng\u01b0\u1eddi \u0111\u1ee9ng sau t\u1ea1o ra c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh n\u00e0y l\u1ea1i hi\u1ec3u r\u00f5 \u0111i\u1ec3m [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2836","post","type-post","status-publish","format-standard","hentry","category-khong-phan-loai"],"_links":{"self":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/posts\/2836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/comments?post=2836"}],"version-history":[{"count":0,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/posts\/2836\/revisions"}],"wp:attachment":[{"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/media?parent=2836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/categories?post=2836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tastycounter.net\/index.php\/wp-json\/wp\/v2\/tags?post=2836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}