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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-10073) KVM host RAM overprovisioning
Date Fri, 29 Sep 2017 06:17:01 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-10073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16185398#comment-16185398
] 

ASF subversion and git services commented on CLOUDSTACK-10073:
--------------------------------------------------------------

Commit 3381c38cc73f3e52b2f02107db8f74c9294de712 in cloudstack's branch refs/heads/master from
Bitworks Software, Ltd
[ https://gitbox.apache.org/repos/asf?p=cloudstack.git;h=3381c38 ]

CLOUDSTACK-10073: KVM host RAM overprovisioning (#2266)

Commit enables a new feature for KVM hypervisor which purpose is to increase virtually amount
of RAM available beyond the actual limit.
There is a new parameter in agent.properties: host.overcommit.mem.mb which enables adding
specified amount of RAM to actually available. It is necessary to utilize KSM and ZSwap features
which extend RAM with deduplication and compression.

> KVM host RAM overprovisioning
> -----------------------------
>
>                 Key: CLOUDSTACK-10073
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-10073
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: cloudstack-agent, KVM
>    Affects Versions: 4.10.0.0, 4.9.3.0
>            Reporter: Ivan Kudryavtsev
>            Priority: Trivial
>
> The PR introduces new cloudstack agent KVM property
> host.overcommit.mem.mb
> which allows increasing KVM host RAM more than physical RAM exists. It is necessary to
utilize KSM and ZSwap features which extend RAM with deduplication and compression.
> https://github.com/apache/cloudstack/pull/2266



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