You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-issues@hadoop.apache.org by "Chris Nauroth (JIRA)" <ji...@apache.org> on 2015/12/17 01:10:46 UTC

[jira] [Commented] (HADOOP-12356) CPU usage statistics on Windows

    [ https://issues.apache.org/jira/browse/HADOOP-12356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15061185#comment-15061185 ] 

Chris Nauroth commented on HADOOP-12356:
----------------------------------------

Hello [~yunqi] and [~elgoiri].  The change in {{SysInfoWindows}} looks good to me, but it's not clear to me why it was necessary to change {{NodeResourceMonitorImpl}}.  The existing code there calls into {{SysInfo#getCpuUsage}}, so I expect the change in {{SysInfoWindows#getCpuUsage}} is sufficient.  In fact, it seems like the {{NodeResourceMonitorImpl}} change would break Linux, which was already accounting for number of processors in {{SysInfoLinux#getCpuUsage}}.

> CPU usage statistics on Windows
> -------------------------------
>
>                 Key: HADOOP-12356
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12356
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>         Environment: CPU: Intel Xeon
> OS: Windows server
>            Reporter: Yunqi Zhang
>            Assignee: Yunqi Zhang
>              Labels: easyfix, newbie, patch
>         Attachments: 0001-Correct-the-CPU-usage-calcualtion.patch, 0001-Correct-the-CPU-usage-calcualtion.patch, HADOOP-12356-v3.patch
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> The CPU usage information on Windows is computed incorrectly. The proposed patch fixes the issue, and unifies the the interface with Linux.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)