{"title":"\u30d7\u30ed\u30bb\u30b9\u306e\u30e9\u30f3\u30ad\u30e5\u30fc\u5f85\u3061\u6642\u9593\u3068I/O\u5f85\u3061\u6642\u9593\u3092\u8abf\u3079\u308b","height":"190","author_url":"https://blog.hatena.ne.jp/yohei-a/","author_name":"yohei-a","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohei-a.hatenablog.jp%2Fentry%2F20150806%2F1438869775\" title=\"\u30d7\u30ed\u30bb\u30b9\u306e\u30e9\u30f3\u30ad\u30e5\u30fc\u5f85\u3061\u6642\u9593\u3068I/O\u5f85\u3061\u6642\u9593\u3092\u8abf\u3079\u308b - ablog\" 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","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/y/yohei-a/20150807/20150807083842.png","provider_url":"https://hatena.blog","blog_title":"ablog","width":"100%","blog_url":"https://yohei-a.hatenablog.jp/","url":"https://yohei-a.hatenablog.jp/entry/20150806/1438869775","description":"cat file|awk \u3067\u306f\u5b9f\u884c\u6642\u9593 \u30b7\u30b9\u30c6\u30e0\u30b3\u30fc\u30eb\u3067\u53d6\u5f97\u3057\u307e\u3059\u3002cat\u306e\u30d7\u30ed\u30bb\u30b9\u3068 awk \u306e\u30d7\u30ed\u30bb\u30b9\u304c\u4e26\u5217\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u671f\u9593\u304c\u3042\u308b\u305f\u3081\u3001\u5b9f\u884c\u6642\u9593 \uff08\u4e2d\u7565\uff09 \u5927\u304d\u306a\u30c6\u30ad\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb\u3092awk\u3067\u51e6\u7406\u3059\u308b\u3068\u304d\u306bcat\u3067\u6295\u3052\u8fbc\u3080\u3068\u901f\u3044\u7406\u7531 - ablog \u3068\u66f8\u304d\u307e\u3057\u305f\u304c\u3001\u30d7\u30ed\u30bb\u30b9\u306e \u30e9\u30f3\u30ad\u30e5\u30fc\u5f85\u3061\u6642\u9593\u306f /proc//sched \u306e2\u5217\u76ee(sched_info.run_delay) I/O\u5f85\u3061\u6642\u9593\u306f /proc//schedstat \u306e se.statistics.iowait_sum \u3067\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff08\u305f\u3076\u3093\uff09\u3002 Brendan Gregg \u306e USE Method: Linux Perf\u2026","published":"2015-08-06 23:02:55","version":"1.0","categories":["Linux"]}