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From "David Nalley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-1301) VM Disk I/O Throttling
Date Thu, 25 Apr 2013 13:06:16 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-1301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13641743#comment-13641743
] 

David Nalley commented on CLOUDSTACK-1301:
------------------------------------------

Wei: 
Does this still work without a patched QEMU? 

Can we get the throttling code up for review on reviewboard? 
                
> VM Disk I/O Throttling
> ----------------------
>
>                 Key: CLOUDSTACK-1301
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1301
>             Project: CloudStack
>          Issue Type: New Feature
>      Security Level: Public(Anyone can view this level - this is the default.) 
>    Affects Versions: 4.0.0, 4.1.0
>            Reporter: Wei Zhou
>            Assignee: Wei Zhou
>             Fix For: 4.2.0
>
>
> VM Disk I/O Throttling, to set the maximum disk I/O rate of VMs.
> Virtual machines are running on the same storage device (local storage or share strage).
Because of the rate limitation of device (such as iops), if one VM has large disk operation,
it may affect the disk performance of other VMs running on the same storage device.
>  It is neccesary to set the maximum rate and limit the disk I/O of VMs.
> More details:
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/VM+IO+Throttling

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