{"id":59768,"date":"2024-01-22T19:14:45","date_gmt":"2024-01-23T00:14:45","guid":{"rendered":"http:\/\/pappp.net\/?guid=ba3830fc0cb617835eefde549c4b1fcd"},"modified":"2024-01-22T19:14:45","modified_gmt":"2024-01-23T00:14:45","slug":"the-itanic-saga-the-history-of-vliw-and-itanium","status":"publish","type":"post","link":"https:\/\/pappp.net\/?p=59768","title":{"rendered":"The Itanic Saga: The History of VLIW and Itanium"},"content":{"rendered":"<p class=\"syndicated-attribution\">Source: <a href=\"https:\/\/www.abortretry.fail\/p\/the-itanic-saga\">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: Because I know too much about this, I like comparing tellings. \n\nThis includes some international context that most tellings don't, which is fun, but skips some of the domestic context like Apollo, Multiflow, and Convex\/Convey.  Marks but intentionally does not discuss some of the other VLIW fad things like Transmeta. \n\nIt makes an amusing clear-but-understated presentation of the degree to which Itanium was a bulldozer in the industry.\n\nIt makes the back-ties to i860 and PA-RISC, and somehow does Elbrus but not iAPX423 (which was an unmitigated disaster) or Burroughs Large Systems (if you want an example that wasn't a disaster) when talking about HLL support in processors.\n\nIt doesn't touch the (hilarious) thread that the Alpha team leaving for AMD after HP killed it in favor of Itanium is _very directly_ the genesis of the initial AMD64 designs, which were the stake through the heart in the market. \n\nAnd it disappointingly doesn't really talk about _why_ the performance was consistently underwhelming in a semi-technical way. The great lesson of the era is that \"You can't statically schedule dynamic behavior.\"   Some of the HN comments get there in nice detail.<\/div><a href=\"https:\/\/news.ycombinator.com\/item?id=39097504\" rel=\"noopener noreferrer\">Comments<\/a>","protected":false},"excerpt":{"rendered":"<p>Comments<\/p>\n<p> <a href=\"https:\/\/pappp.net\/?p=59768\">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-59768","post","type-post","status-publish","format-standard","hentry","category-news-2"],"_links":{"self":[{"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts\/59768","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=59768"}],"version-history":[{"count":0,"href":"https:\/\/pappp.net\/index.php?rest_route=\/wp\/v2\/posts\/59768\/revisions"}],"wp:attachment":[{"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=59768"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=59768"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pappp.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=59768"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}