[ 
https://issues.apache.org/jira/browse/HIVE-13087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Gopal V updated HIVE-13087:
---------------------------
    Description: 
The daemons currently prints GC details. It will be useful to print the total 
useful time application spent and the total time for which application threads 
are stopped.

Need to add
{code}
-XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime
{code}

to get something like
{code}
Application time: 0.3440086 seconds
Total time for which application threads were stopped: 0.0620105 seconds
Application time: 0.2100691 seconds
Total time for which application threads were stopped: 0.0890223 seconds
{code}

Reference: 
https://plumbr.eu/blog/performance-blog/logging-stop-the-world-pauses-in-jvm

NO PRECOMMIT TESTS

  was:
The daemons currently prints GC details. It will be useful to print the total 
useful time application spent and the total time for which application threads 
are stopped.

Need to add
{code}
-XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime
{code}

to get something like
{code}
Application time: 0.3440086 seconds
Total time for which application threads were stopped: 0.0620105 seconds
Application time: 0.2100691 seconds
Total time for which application threads were stopped: 0.0890223 seconds
{code}

Reference: 
https://plumbr.eu/blog/performance-blog/logging-stop-the-world-pauses-in-jvm


> LLAP: Print STW pause time and useful application time
> ------------------------------------------------------
>
>                 Key: HIVE-13087
>                 URL: https://issues.apache.org/jira/browse/HIVE-13087
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 2.1.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>         Attachments: HIVE-13087.1.patch
>
>
> The daemons currently prints GC details. It will be useful to print the total 
> useful time application spent and the total time for which application 
> threads are stopped.
> Need to add
> {code}
> -XX:+PrintGCApplicationStoppedTime -XX:+PrintGCApplicationConcurrentTime
> {code}
> to get something like
> {code}
> Application time: 0.3440086 seconds
> Total time for which application threads were stopped: 0.0620105 seconds
> Application time: 0.2100691 seconds
> Total time for which application threads were stopped: 0.0890223 seconds
> {code}
> Reference: 
> https://plumbr.eu/blog/performance-blog/logging-stop-the-world-pauses-in-jvm
> NO PRECOMMIT TESTS



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