{"id":278,"date":"2010-09-17T22:17:38","date_gmt":"2010-09-18T05:17:38","guid":{"rendered":"http:\/\/www.vadapt.com\/?p=278"},"modified":"2010-09-17T22:20:21","modified_gmt":"2010-09-18T05:20:21","slug":"hypervisordensit","status":"publish","type":"post","link":"http:\/\/iben.users.sonic.net\/wp\/hypervisordensit\/","title":{"rendered":"Hypervisor Density"},"content":{"rendered":"<p>Testing using a workload that mimics real world SQL Server workloads better than ever before, suggests that ESX today has a VM density ratio well in excess of 1.5:1.<\/p>\n<p>VMware\u2019s ESXi 4.1 continues to lead the pack, delivering a density advantage of at least\u00a02:1 and up to almost 3:1 versus Hyper-V R2 and between 1.7:1 and 2.3:1 vs. KVM.<\/p>\n<p>XenServer has closed the density gap in terms of number of concurrent VMs that can be run on a given host, coming to par with ESXi, but that this comes with a significant and unacceptable performance penalty. XenServer consistently delivers far less performance across the board (penalty ranging from 25% to 69%), and in our view gives ESXi as much as a 2:1 density advantage over XenServer, once we consider the ability of the hypervisor to access the full performance of the underlying hardware.<\/p>\n<p><a name=\"top\"><\/a><\/p>\n<p><a name=\"top\"><\/a><\/p>\n<p><a href=\"http:\/\/www.tanejagroup.com\/chkwhitepapers.aspx?lstpro=1&amp;fname=VMware%20Hypervisor%20Density%20TVS%20August%202010.pdf\" target=\"_blank\">http:\/\/www.tanejagroup.com\/chkwhitepapers.aspx?lstpro=1&amp;fname=VMware%20Hypervisor%20Density%20TVS%20August%202010.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8230;using a workload that mimics real world SQL Server workloads better than ever before, suggests that ESX today has a VM density ratio well in excess of 1.5:1.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[209,22,34,210],"class_list":["post-278","post","type-post","status-publish","format-standard","hentry","tag-hyper-v","tag-performance","tag-vsphere","tag-xenserver"],"_links":{"self":[{"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/posts\/278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/comments?post=278"}],"version-history":[{"count":3,"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/posts\/278\/revisions"}],"predecessor-version":[{"id":281,"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/posts\/278\/revisions\/281"}],"wp:attachment":[{"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/media?parent=278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/categories?post=278"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/iben.users.sonic.net\/wp\/wp-json\/wp\/v2\/tags?post=278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}