[ https://issues.apache.org/jira/browse/SPARK-29791?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
zengrui updated SPARK-29791: ---------------------------- Attachment: 0001-add-implementation-for-issue-SPARK-29791.patch > Add a spark config to allow user to use executor cores virtually. > ----------------------------------------------------------------- > > Key: SPARK-29791 > URL: https://issues.apache.org/jira/browse/SPARK-29791 > Project: Spark > Issue Type: Improvement > Components: Scheduler > Affects Versions: 2.1.0 > Reporter: zengrui > Priority: Minor > Attachments: 0001-add-implementation-for-issue-SPARK-29791.patch > > > We can config the executor cores by "spark.executor.cores". For example, if > we config 8 cores for a executor, then the driver can only scheduler 8 tasks > to this executor concurrently. In fact, most cases a task does not always > occupy a core or more. More time, tasks spent on disk IO or network IO, so we > can make driver to scheduler more than 8 tasks(virtual the cores to 16,32 or > more the executor report to driver) to this executor concurrently, it will > make the whole job execute more quickly. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org