You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Kay Ousterhout (JIRA)" <ji...@apache.org> on 2014/10/17 01:26:34 UTC
[jira] [Issue Comment Deleted] (SPARK-3983) Scheduler delay (shown
in the UI) is incorrect
[ https://issues.apache.org/jira/browse/SPARK-3983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kay Ousterhout updated SPARK-3983:
----------------------------------
Comment: was deleted
(was: This is especially problematic when debugging performance of short tasks (that run in 10s of milliseconds), when the scheduler delay can be very large relative to the task duration.)
> Scheduler delay (shown in the UI) is incorrect
> ----------------------------------------------
>
> Key: SPARK-3983
> URL: https://issues.apache.org/jira/browse/SPARK-3983
> Project: Spark
> Issue Type: Bug
> Reporter: Kay Ousterhout
> Assignee: Kay Ousterhout
> Fix For: 1.2.0
>
>
> The reported scheduler delay includes time to get a new thread (from a threadpool) in order to start the task, time to deserialize the task, and time to serialize the result. None of these things are delay caused by the scheduler; including them as such is misleading.
> cc [~sparks] [~shivaram]
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org