{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohei-a.hatenablog.jp%2Fentry%2F20130925%2F1380116125\" title=\"svctm * (r/s+w/s) is always 1000 if %util is 100%. - ablog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"ablog","title":"svctm * (r/s+w/s) is always 1000 if %util is 100%.","version":"1.0","url":"https://yohei-a.hatenablog.jp/entry/20130925/1380116125","author_name":"yohei-a","width":"100%","provider_name":"Hatena Blog","published":"2013-09-25 22:35:25","height":"190","type":"rich","blog_url":"https://yohei-a.hatenablog.jp/","description":"If %util is 100%, svctm is just 1 / (r/s + w/s) seconds, 1000/(r/s+w/s) milliseconds. This is an inverse number of IOPS. In other words, svctm * (r/s+w/s) is always 1000 if %util is 100%. So checking svctm is practically as same as checking r/s and w/s (as long as %util is close to 100%). The latter\u2026","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/yohei-a/","categories":["Linux","Performance"]}