{"id":125,"date":"2013-02-15T10:42:33","date_gmt":"2013-02-15T14:42:33","guid":{"rendered":"http:\/\/puck.nether.net\/~jared\/blog\/?p=125"},"modified":"2013-02-19T11:35:19","modified_gmt":"2013-02-19T15:35:19","slug":"an-update-on-puck-and-poor-ipv6-performance","status":"publish","type":"post","link":"https:\/\/puck.nether.net\/~jared\/blog\/?p=125","title":{"rendered":"An update on puck and poor IPv6 performance"},"content":{"rendered":"<p>Turns out, the saga may not yet be over.  There is a defect in the current version of VirtualBox.  I&#8217;m using VirtualBox-4.2-4.2.6_82870_fedora18-1.x86_64 right now and there seems to be an issue where IPv6 performance is only ~22Kb\/s or so in most of my experiences.<\/p>\n<p><a href=\"https:\/\/www.virtualbox.org\/ticket\/9380\" title=\"https:\/\/www.virtualbox.org\/ticket\/9380\">https:\/\/www.virtualbox.org\/ticket\/9380<\/a><\/p>\n<p>Hope this helps someone else.<\/p>\n<p>UPDATE:<\/p>\n<p>Disabling GRO seemed to work around the problem for me.<\/p>\n<p>I spent a bunch of time doing &#8220;iperf -V -s&#8221; between both a VM and a host on the same machine\/lan\/network interface.  The performance one-way would be fast but the other way would be slow with GRO on.  Hope this helps you.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Turns out, the saga may not yet be over. There is a defect in the current version of VirtualBox. I&#8217;m using VirtualBox-4.2-4.2.6_82870_fedora18-1.x86_64 right now and there seems to be an issue where IPv6 performance is only ~22Kb\/s or so in most of my experiences. https:\/\/www.virtualbox.org\/ticket\/9380 Hope this helps someone else. UPDATE: Disabling GRO seemed to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=\/wp\/v2\/posts\/125"}],"collection":[{"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=125"}],"version-history":[{"count":3,"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=\/wp\/v2\/posts\/125\/revisions"}],"predecessor-version":[{"id":128,"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=\/wp\/v2\/posts\/125\/revisions\/128"}],"wp:attachment":[{"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/puck.nether.net\/~jared\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}