{"id":32,"date":"2014-04-15T14:19:58","date_gmt":"2014-04-15T05:19:58","guid":{"rendered":"http:\/\/www.raythebm.net\/weblog\/?p=32"},"modified":"2014-04-15T14:19:58","modified_gmt":"2014-04-15T05:19:58","slug":"linux-%e3%81%a7-ssd","status":"publish","type":"post","link":"https:\/\/www.raythebm.net\/weblog\/archives\/32","title":{"rendered":"Linux \u3067 SSD"},"content":{"rendered":"<p>\u7d9a\u3051\u3066\u6295\u7a3f\u3067\u3059\u3002\u307e\u3042\u3001\u524d\u306e\u3068\u4f75\u305b\u3066 SSD \u8ffd\u52a0 \u2192 \u30de\u30a6\u30f3\u30c8 \u3068\u3044\u3046\u6d41\u308c\u3060\u3063\u305f\u3060\u3051\u3067\u3059\u304c\u3002<\/p>\n<p>\u3068\u308a\u3042\u3048\u305a Linux \u3067\u306f\u30ab\u30fc\u30cd\u30eb 2.6.33(CentOS 6\u306f2.6.32\u306b\u30d0\u30c3\u30af\u30dd\u30fc\u30c8\u3042\u308a)\u304b\u3089 Trim \u30b3\u30de\u30f3\u30c9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u305d\u3046\u3067\u3059\u3002<br \/>\n\u305f\u3060\u3057 ext4 \u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u3067\u30de\u30a6\u30f3\u30c8\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u300cdiscard\u300d\u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u306e\u307f\u3068\u306e\u304a\u8a71\u306a\u306e\u3067\u8981\u6ce8\u610f\u3002<\/p>\n<p>\u30c1\u30a7\u30c3\u30af\u65b9\u6cd5\u3068\u3057\u3066\u306f\u3001\u305d\u308c\u305e\u308c\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>TRIM \u5bfe\u5fdc\u72b6\u6cc1(SSD\u5074) \u300chdparm -I \/dev\/sda | grep -i TRIM\u300d<\/li>\n<li>SSD \u304b\u3069\u3046\u304b\uff1f \u300ccat \/sys\/block\/sda\/queue\/rotational\u300d\u304c 0 \u306a\u3089 SSD<\/li>\n<li>\u4f7f\u3046I\/O\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\u300ccat \/sys\/block\/sda\/queue\/scheduler\u300d\n<ul>\n<li>\u00a0 \u57fa\u672c\u7684\u306b\u306f\u300ccfq\u300d\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001SSD \u306e\u5834\u5408\u306b\u306f\u300cnoop\u300d\u3084\u300cdeadline\u300d\u306b\u3059\u308b\u3068\u52b9\u7387\u304c\u826f\u304f\u306a\u308b\u3068\u3044\u3046\u5642\u304c\u3042\u308a\u307e\u3059<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>\u307e\u305f\u3001\u4ee5\u4e0b\u306b\u53c2\u8003\u30ea\u30f3\u30af\u3092\u30e1\u30e2\u3057\u3066\u304a\u304d\u307e\u3059\u3002<a title=\"SSD \u6700\u9069\u5316\u30aa\u30d7\u30b7\u30e7\u30f3(\u82f1\u8a9e)\" href=\"http:\/\/apcmag.com\/how-to-maximise-ssd-performance-with-linux.htm\" target=\"_blank\"><br \/>\n<\/a><\/p>\n<ul>\n<li><a href=\"http:\/\/apcmag.com\/how-to-maximise-ssd-performance-with-linux.htm\" target=\"_blank\">SSD\u6700\u9069\u5316\u30aa\u30d7\u30b7\u30e7\u30f3(\u82f1\u8a9e)<\/a> \u3053\u3061\u3089\u306f Linux \u5168\u822c\u3067\u306e SSD \u306e\u8a71<\/li>\n<li><a href=\"http:\/\/ajido.hatenablog.com\/entry\/2013\/06\/23\/191150\" target=\"_blank\">SSD Optimize for CentOS(\u65e5\u672c\u8a9e)<\/a> \u3053\u3061\u3089\u306f CentOS \u7528\u3067\u3001\u8d77\u52d5\u30c7\u30a3\u30b9\u30af\u306b\u4f7f\u3046\u5834\u5408\u3082\u542b\u3080<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7d9a\u3051\u3066\u6295\u7a3f\u3067\u3059\u3002\u307e\u3042\u3001\u524d\u306e\u3068\u4f75\u305b\u3066 SSD \u8ffd\u52a0 \u2192 \u30de\u30a6\u30f3\u30c8 \u3068\u3044\u3046\u6d41\u308c\u3060\u3063\u305f\u3060\u3051\u3067\u3059\u304c\u3002 \u3068\u308a\u3042\u3048\u305a Linux \u3067\u306f\u30ab\u30fc\u30cd\u30eb 2.6.33(CentOS 6\u306f2.6.32\u306b\u30d0\u30c3\u30af\u30dd\u30fc\u30c8\u3042\u308a)\u304b\u3089 Trim \u30b3\u30de\u30f3\u30c9 &hellip; <a href=\"https:\/\/www.raythebm.net\/weblog\/archives\/32\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[17,15,16,18,11],"class_list":["post-32","post","type-post","status-publish","format-standard","hentry","category-it","tag-etc","tag-linux","tag-mount","tag-ssd","tag-system"],"_links":{"self":[{"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/posts\/32","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/comments?post=32"}],"version-history":[{"count":2,"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/posts\/32\/revisions"}],"predecessor-version":[{"id":34,"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/posts\/32\/revisions\/34"}],"wp:attachment":[{"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/media?parent=32"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/categories?post=32"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.raythebm.net\/weblog\/wp-json\/wp\/v2\/tags?post=32"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}