{"id":562,"date":"2016-09-26T15:42:00","date_gmt":"2016-09-26T06:42:00","guid":{"rendered":"https:\/\/wp.zassoul.com\/?p=562"},"modified":"2016-09-26T15:42:00","modified_gmt":"2016-09-26T06:42:00","slug":"%e3%80%90openstack%e3%80%91centos7%e3%81%a7%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e3%82%b5%e3%83%bc%e3%83%90%e7%ab%8b%e3%81%a6%e3%81%9f%e3%81%91%e3%81%a9%e3%82%84%e3%81%9f%e3%82%89%e3%81%a8%e3%82%b9","status":"publish","type":"post","link":"https:\/\/wp.zassoul.com\/?p=562","title":{"rendered":"\u3010OpenStack\u3011CentOS7\u3067\u30d5\u30a1\u30a4\u30eb\u30b5\u30fc\u30d0\u7acb\u3066\u305f\u3051\u3069\u3084\u305f\u3089\u3068\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u60aa\u3044"},"content":{"rendered":"<p>\u4f7f\u3063\u3066\u3044\u305fNAS\u306e\u5bb9\u91cf\u304c\u3082\u3046\u30d1\u30f3\u30d1\u30f3\u3060\u3063\u305f\u306e\u3067\uff0c\u5927\u91cf\u306bDisk\u8a70\u3093\u3060RDO\u306bCentOS7\u3092\u305f\u3066\u3066\u30d5\u30a1\u30a4\u30eb\u30b5\u30fc\u30d0\u3068\u3057\u3066NAS\u4ee3\u308f\u308a\u306b\u3057\u305f\u3002<\/p>\n<p>\u304c\uff0c\u3084\u3063\u305f\u3089\u3068\u901f\u5ea6\u304c\u51fa\u306a\u3044\u3002<br \/>\u30d5\u30a1\u30a4\u30eb\u79fb\u884c\u30678Mbps\u7a0b\u5ea6\u3057\u304b\u51fa\u3066\u3044\u306a\u3044\u3002<\/p>\n<p>\u3067\uff0c\u300cNeutron \u901f\u5ea6\u304c\u3067\u306a\u3044\u300d\u3068\u304b\u3067\u3050\u3050\u3063\u3066\u307f\u308b\u3068\uff0c\u5927\u4f53\u540c\u3058\u4e8b\u8c61\u304c\u305f\u304f\u3055\u3093\u51fa\u3066\u304f\u308b\u3002<\/p>\n<p>NIC\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u51e6\u7406\u3092\u30aa\u30d5\u30ed\u30fc\u30c9\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u539f\u56e0\u306e\u3088\u3046\u3067\u3002<\/p>\n<p>\u3053\u3053\u3089\u3092\u53c2\u8003\u306bGRO\u3092OFF\u306b\u3057\u305f\u3002<\/p>\n<p>\u30fb&nbsp;<a href=\"https:\/\/ask.openstack.org\/en\/question\/25306\/slow-network-speed-between-vm-and-external\/\" target=\"_blank\" rel=\"noopener noreferrer\">Slow network speed between VM and external<\/a><br \/>\u30fb&nbsp;<a href=\"http:\/\/qiita.com\/semind\/items\/9b48c6655ced95a42b03\" target=\"_blank\" rel=\"noopener noreferrer\">NIC\u306e\u30aa\u30d5\u30ed\u30fc\u30c9\u6a5f\u80fd\u3092\u7121\u52b9\u306b\u3059\u308b<\/a><\/p>\n<ul><\/ul>\n<table cellpadding=\"20\" style=\"width: 90%;\">\n<tbody>\n<tr bgcolor=\"DDDDDD\">\n<td height=\"20\"><span style=\"background-color: transparent;\"><span style=\"font-size: x-small;\"><b>$ ethtool -k enp4s0<\/b><\/span><\/span><br \/><span style=\"font-size: x-small;\">Features for enp4s0:<\/span><br \/><span style=\"font-size: x-small;\">rx-checksumming: on<\/span><br \/><span style=\"font-size: x-small;\">tx-checksumming: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-ipv4: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-ip-generic: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-ipv6: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-fcoe-crc: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-sctp: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">scatter-gather: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-scatter-gather: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-scatter-gather-fraglist: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tcp-segmentation-offload: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-tcp-segmentation: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-tcp-ecn-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-tcp6-segmentation: off<\/span><br \/><span style=\"font-size: x-small;\">udp-fragmentation-offload: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">generic-segmentation-offload: off [requested on]<\/span><br \/><span style=\"font-size: x-small;\"><span style=\"color: red;\">generic-receive-offload: <\/span><b><span style=\"color: red;\">on<\/span><\/b><\/span><br \/><span style=\"font-size: x-small;\">large-receive-offload: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">rx-vlan-offload: on<\/span><br \/><span style=\"font-size: x-small;\">tx-vlan-offload: on<\/span><br \/><span style=\"font-size: x-small;\">ntuple-filters: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">receive-hashing: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">highdma: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">rx-vlan-filter: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">vlan-challenged: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-lockless: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">netns-local: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-gso-robust: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-fcoe-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-gre-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-ipip-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-sit-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-udp_tnl-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">fcoe-mtu: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tx-nocache-copy: off<\/span><br \/><span style=\"font-size: x-small;\">loopback: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">rx-fcs: off<\/span><br \/><span style=\"font-size: x-small;\">rx-all: off<\/span><br \/><span style=\"font-size: x-small;\">tx-vlan-stag-hw-insert: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">rx-vlan-stag-hw-parse: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">rx-vlan-stag-filter: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">l2-fwd-offload: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">busy-poll: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\"><br \/><\/span><span style=\"font-size: x-small;\"><b>$&nbsp;sudo ethtool -K enp4s0 gro off<\/b><\/span><br \/><span style=\"font-size: x-small;\"><b>$ ethtool -k enp4s0<\/b><\/span><br \/><span style=\"font-size: x-small;\">Features for enp4s0:<\/span><br \/><span style=\"font-size: x-small;\">rx-checksumming: on<\/span><br \/><span style=\"font-size: x-small;\">tx-checksumming: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-ipv4: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-ip-generic: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-ipv6: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-fcoe-crc: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-checksum-sctp: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">scatter-gather: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-scatter-gather: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-scatter-gather-fraglist: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">tcp-segmentation-offload: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-tcp-segmentation: off<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-tcp-ecn-segmentation: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">&nbsp; &nbsp; &nbsp; &nbsp; tx-tcp6-segmentation: off<\/span><br \/><span style=\"font-size: x-small;\">udp-fragmentation-offload: off [fixed]<\/span><br \/><span style=\"font-size: x-small;\">generic-segmentation-offload: off [requested on]<\/span><br \/><span style=\"font-size: x-small;\"><\/span><br \/><span style=\"color: red; font-size: x-small;\">generic-receive-offload: <b>off<\/b>&nbsp; &nbsp;# OFF\u306b\u306a\u3063\u305f<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u308c\u3067\u8ee2\u9001\u3084\u308a\u306a\u304a\u3057\u305f\u3089<strike>200Mbps\u304f\u3089\u3044\u307e\u3067\u6539\u5584\u3055\u308c\u305f<\/strike>\u3002100Mbps\u3067\u3057\u305f\u3002<br \/>\u3057\u304b\u3057\uff0c\u3053\u308c\u3063\u3066\u518d\u8d77\u52d5\u3057\u305f\u3089\u307e\u305f\u623b\u308b\u3093\u3060\u3063\u3051\u304b?<\/p>\n<p>rc\u30b9\u30af\u30ea\u30d7\u30c8\u3068\u304b\u306bethtool\u3092\u4ed5\u8fbc\u3093\u3067\u304a\u304b\u306a\u3044\u3068\u30c0\u30e1\u3063\u307d\u3044\u3002<\/p>\n<p>\u30fb <a href=\"http:\/\/www.linuxforums.org\/forum\/red-hat-fedora-linux\/184680-turning-off-gro-startup.html?s=e995707355d07b9a0b060ce0466ff16d\" target=\"_blank\" rel=\"noopener noreferrer\">Turning off GRO on startup<\/a><br \/>\u30fb&nbsp;<a href=\"http:\/\/serverfault.com\/questions\/463111\/how-to-persist-ethtool-settings-through-reboot\" target=\"_blank\" rel=\"noopener noreferrer\">How to persist ethtool settings through reboot<\/a><\/p>\n<table cellpadding=\"20\" style=\"width: 587px;\">\n<tbody>\n<tr bgcolor=\"DDDDDD\">\n<td height=\"20\"><span style=\"background-color: transparent;\"><span style=\"font-size: x-small;\">#&nbsp;\/etc\/sysconfig\/network-scripts\/ifcfg-enp4s0<\/span><\/span><br \/><span style=\"background-color: transparent;\"><span style=\"font-size: x-small;\">ETHTOOL_OPTS=&#8221;gro off&#8221;<\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u308c\u3067\u3069\u3046\u304b\u3057\u3089\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u3063\u3066\u3044\u305fNAS\u306e\u5bb9\u91cf\u304c\u3082\u3046\u30d1\u30f3\u30d1\u30f3\u3060\u3063\u305f\u306e\u3067\uff0c\u5927\u91cf\u306bDisk\u8a70\u3093\u3060RDO\u306bCentOS7\u3092\u305f\u3066\u3066\u30d5\u30a1\u30a4\u30eb\u30b5\u30fc\u30d0\u3068\u3057\u3066NAS\u4ee3\u308f\u308a\u306b\u3057\u305f\u3002 \u304c\uff0c\u3084\u3063\u305f\u3089\u3068\u901f\u5ea6\u304c\u51fa\u306a\u3044\u3002\u30d5\u30a1\u30a4\u30eb\u79fb\u884c\u30678Mbps\u7a0b\u5ea6\u3057\u304b\u51fa\u3066\u3044\u306a\u3044\u3002 \u3067\uff0c\u300c\u2026 <span class=\"read-more\"><a href=\"https:\/\/wp.zassoul.com\/?p=562\">\u7d9a\u304d\u3092\u8aad\u3080 &raquo;<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,13,45,8],"tags":[],"class_list":["post-562","post","type-post","status-publish","format-standard","hentry","category-it","category-linux","category-openstack","category-8"],"_links":{"self":[{"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=\/wp\/v2\/posts\/562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=562"}],"version-history":[{"count":0,"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=\/wp\/v2\/posts\/562\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=562"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=562"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.zassoul.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}