{"url":"https://tboffice.hatenadiary.jp/entry/20080929/1222701679","published":"2008-09-29 00:21:19","blog_title":"\u691c\u8a0e\uff01\u76ee\u8ad6\u898b\u691c\u8a0e\u59d4\u54e1\u4f1a","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftboffice.hatenadiary.jp%2Fentry%2F20080929%2F1222701679\" title=\" uptime\u306e\u30ab\u30a6\u30f3\u30c8\u3067\u304d\u308b\u9650\u754c - \u691c\u8a0e\uff01\u76ee\u8ad6\u898b\u691c\u8a0e\u59d4\u54e1\u4f1a\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","blog_url":"https://tboffice.hatenadiary.jp/","type":"rich","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/tboffice/","width":"100%","height":"190","image_url":null,"title":" uptime\u306e\u30ab\u30a6\u30f3\u30c8\u3067\u304d\u308b\u9650\u754c","categories":["Linux"],"author_name":"tboffice","description":"\u3061\u3087\u3063\u3068\u8abf\u3079\u305f\u306e\u3067\u30e1\u30e2\u3002 linux\u306euptime\u306e\u5909\u6570(jiffies)\u306e\u578b\u304cunsigned long\u306e\u305f\u3081\u300132bit\u307e\u3067\u3057\u304b\u8a08\u308c\u306a\u304f\u3066\u3001\u7d04497\u65e5\u3067\u30ea\u30bb\u30c3\u30c8\u3055\u308c\u308b\u3002 jiffies\u306f100\u3067\u5272\u308b\u3068\u79d2\u306b\u306a\u308b\u3093\u3060\u3063\u3066\u3002\u3078\u30fc\u3002 32bit\u306f\u3001\u6700\u9ad8\u307e\u3067\u30ab\u30a6\u30f3\u30c8\u3057\u305f\u3068\u3057\u30660xffffffff\uff1d4294967295\u306a\u306e\u3067\u3001 4294967295/100/60/60/24\u2252497.1\u65e5 kernel 2.6\u306f64bit\u3089\u3057\u3044\u306e\u3067\u3001\u3082\u3063\u3068\u3067\u304b\u3044\u6841\u3092\u8a08\u308c\u308b\u6a21\u69d8\u3002 linux\u306e\u30bd\u30fc\u30b9(CentOS 5.2\u306einclude/linux/jiffies.h)\u898b\u305f\u3089\u3001 extern u64 __jiffy_da\u2026","version":"1.0"}