You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2015/12/07 20:36:11 UTC
[jira] [Assigned] (SPARK-12181) Check Cached unaligned-access
capability before using Unsafe
[ https://issues.apache.org/jira/browse/SPARK-12181?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-12181:
------------------------------------
Assignee: (was: Apache Spark)
> Check Cached unaligned-access capability before using Unsafe
> ------------------------------------------------------------
>
> Key: SPARK-12181
> URL: https://issues.apache.org/jira/browse/SPARK-12181
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Ted Yu
>
> For MemoryMode.OFF_HEAP, Unsafe.getInt etc. are used with no restriction.
> However, the Oracle implementation uses these methods only if the class variable unaligned (commented as "Cached unaligned-access capability") is true, which seems to be calculated whether the architecture is i386, x86, amd64, or x86_64.
> I think we should perform similar check for the use of Unsafe.
--
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