{"id":32305,"date":"2020-09-24T06:10:26","date_gmt":"2020-09-24T10:10:26","guid":{"rendered":"http:\/\/pappp.net\/?guid=c3afec1067b3f7fa80fd35d0af49a5c3"},"modified":"2020-09-24T06:10:26","modified_gmt":"2020-09-24T10:10:26","slug":"sse-code-6-times-slower-without-vzeroupper-on-skylake-2016","status":"publish","type":"post","link":"https:\/\/pappp.net\/?p=32305","title":{"rendered":"SSE code 6 times slower without VZEROUPPER on Skylake (2016)"},"content":{"rendered":"<p class=\"syndicated-attribution\">Source: <a href=\"https:\/\/stackoverflow.com\/questions\/41303780\/why-is-this-sse-code-6-times-slower-without-vzeroupper-on-skylake\">Hacker News<\/a><\/p>\n<div style=\"background-color : #fff7d5;\n\t\t\tborder-width : 1px; padding : 5px; border-style : dashed; border-color : #e7d796;margin-bottom : 1em; color : #9a8c59;\">Article note: Hey look, that lesson we supposedly learned in the 80s about obscenely, incomprehensibly complicated architectures being a bad idea is back for it's regular visit. \r\nThe plethora of vector extensions in x86 interact in implementation-dependent non-local ways with massive performance implications.<\/div><a href=\"https:\/\/news.ycombinator.com\/item?id=24577069\" rel=\"noopener noreferrer\">Comments<\/a>","protected":false},"excerpt":{"rendered":"<p>Comments<\/p>\n<p> <a href=\"https:\/\/pappp.net\/?p=32305\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[226],"tags":[],"class_list":["post-32305","post","type-post","status-publish","format-standard","hentry","category-news-2"],"_links":{"self":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts\/32305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=32305"}],"version-history":[{"count":0,"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts\/32305\/revisions"}],"wp:attachment":[{"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=32305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=32305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=32305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}