[jira] [Updated] (SAMZA-401) Add utilization metrics for the event loop

["Chris Riccomini (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SAMZA-401?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chris Riccomini updated SAMZA-401:
----------------------------------
    Affects Version/s: 0.8.0

> Add utilization metrics for the event loop
> ------------------------------------------
>
>                 Key: SAMZA-401
>                 URL: https://issues.apache.org/jira/browse/SAMZA-401
>             Project: Samza
>          Issue Type: Improvement
>          Components: metrics
>    Affects Versions: 0.8.0
>            Reporter: Yan Fang
>              Labels: newbie++
>
> As discussed [here|https://issues.apache.org/jira/browse/SAMZA-349?focusedCommentId=14116417&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14116417],
> {quote}
> it would be useful to add "utilization" (aka "duty cycle") as a metric, which is the sum of all the timings divided by the window length. That can tell you how much idle time there is in the event loop (how much headroom before the job will start falling behind).
> {quote}
> It is useful to add this metric for the event loop.



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