{"id":14411,"date":"2013-03-28T15:10:33","date_gmt":"2013-03-28T15:10:33","guid":{"rendered":"https:\/\/aidanfinn.com\/?p=14411"},"modified":"2013-03-28T15:10:33","modified_gmt":"2013-03-28T15:10:33","slug":"kb2770440-poor-performance-with-remotefx-enabled-on-amd-powered-ws2012-hyper-v-hosts","status":"publish","type":"post","link":"https:\/\/aidanfinn.com\/?p=14411","title":{"rendered":"KB2770440 &#8211; Poor Performance With RemoteFX Enabled On AMD Powered WS2012 Hyper-V Hosts"},"content":{"rendered":"<p>Microsoft has released a new <a href=\"http:\/\/support.microsoft.com\/kb\/2770440\" target=\"_blank\">hotfix<\/a> to deal with an issue where you have poor performance when you enable RemoteFX in Hyper-V on a Windows Server 2012-based computer that uses AMD processors.<\/p>\n<blockquote>\n<h4><u>Symptoms<\/u><\/h4>\n<p>Consider the following scenario: <\/p>\n<ul>\n<li>You have a Windows Server 2012-based computer that uses AMD processors. <\/li>\n<li>You install a Hyper-V role on the computer. <\/li>\n<li>You install the Remote Desktop Virtualization Host (RD Virtualization Host) role service on the computer. <\/li>\n<li>You create one or more virtual machines on the computer. <\/li>\n<li>You use the Microsoft RemoteFX feature to improve user experience in virtual machines.<\/li>\n<\/ul>\n<p> In this scenario, graphics performance in the virtual machines is poor.     <\/p>\n<p>&#160;<\/p>\n<h4><u>Cause<\/u><\/h4>\n<p>This issue occurs because Hypervisor incorrectly configures the Page Address Table (PAT) cache type for root partitions on AMD systems.<\/p>\n<\/blockquote>\n<p>A supported <a href=\"http:\/\/support.microsoft.com\/hotfix\/KBHotfix.aspx?kbnum=2770440\" target=\"_blank\">hotfix<\/a> is available from Microsoft.<\/p>\n<div id=\"scid:0767317B-992E-4b12-91E0-4F059A8CECA8:91195440-9da3-4eed-b452-51b9e1763b8c\" class=\"wlWriterEditableSmartContent\" style=\"float: none; padding-bottom: 0px; padding-top: 0px; padding-left: 0px; margin: 0px; display: inline; padding-right: 0px\">Technorati Tags: <a href=\"http:\/\/technorati.com\/tags\/Windows+Server+2012\" rel=\"tag\">Windows Server 2012<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Hyper-V\" rel=\"tag\">Hyper-V<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Virtualisation\" rel=\"tag\">Virtualisation<\/a>,<a href=\"http:\/\/technorati.com\/tags\/Remote+Desktop+Services\" rel=\"tag\">Remote Desktop Services<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft has released a new hotfix to deal with an issue where you have poor performance when you enable RemoteFX in Hyper-V on a Windows Server 2012-based computer that uses AMD processors. Symptoms Consider the following scenario: You have a Windows Server 2012-based computer that uses AMD processors. You install a Hyper-V role on the &hellip; <a href=\"https:\/\/aidanfinn.com\/?p=14411\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;KB2770440 &#8211; Poor Performance With RemoteFX Enabled On AMD Powered WS2012 Hyper-V Hosts&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[20],"tags":[181,188,195,118],"class_list":["post-14411","post","type-post","status-publish","format-standard","hentry","category-hyper-v","tag-hyper-v","tag-remote-desktop-services","tag-virtualisation","tag-windows-server-2012"],"aioseo_notices":[],"jetpack_featured_media_url":"","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/14411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14411"}],"version-history":[{"count":0,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=\/wp\/v2\/posts\/14411\/revisions"}],"wp:attachment":[{"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aidanfinn.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}