[jira] [Resolved] (MESOS-687) slave should export perf hardware counters when available

["Ian Downes (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ian Downes resolved MESOS-687.
------------------------------
    Resolution: Fixed

> slave should export perf hardware counters when available
> ---------------------------------------------------------
>
>                 Key: MESOS-687
>                 URL: https://issues.apache.org/jira/browse/MESOS-687
>             Project: Mesos
>          Issue Type: Story
>          Components: slave
>            Reporter: brian wickman
>            Priority: Minor
>
> It would be very valuable for the slave resource monitor to export hardware counters.  There are a few ways this could be done -- either by invoking perf directly or by accessing the counters via the syscall/read interface described by http://lxr.free-electrons.com/source/tools/perf/design.txt  I'd imagine this would just get plumbed through Isolator::usage in the end and get exported via the resource monitor endpoint.
> Correct me if I'm wrong but there's currently no information exposed (programmatically) at the granularity level of executor, so I don't really know how this information could ever make its way into the hands of a scheduler for the purpose of making better scheduling decisions vis-a-vis things like task-level interference.  Given Google's CPI paper (http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/pubs/archive/40737.pdf) it sounds like something worth investigating.



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