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From "Marcus Sorensen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-1301) VM I/O Throttling
Date Fri, 15 Feb 2013 15:55:13 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-1301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13579263#comment-13579263
] 

Marcus Sorensen commented on CLOUDSTACK-1301:
---------------------------------------------

The Linux cgroup io controllers are generally horrible. Probably better
than nothing, but that's why I was thinking that if the primary storage
provides QoS it could do it. Or perhaps a user wants to install an
alternative cgroup controller like BetterLinux modules. Then use the
libvirt one as a fallback. But I wouldn't want to see it just applied as
extra XML that only libvirt supports.
On Feb 15, 2013 8:45 AM, "Wido den Hollander (JIRA)" <jira@apache.org>


                
> VM 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
>            Reporter: Wei Zhou
>
> VM 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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