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https://issues.apache.org/jira/browse/CLOUDSTACK-3446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bharat Kumar resolved CLOUDSTACK-3446.
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Resolution: Fixed
> Guest OS is getting memory=memory in SO / memory.overcommit.ratio on kvm host
> even there is no contention
> ---------------------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-3446
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3446
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server
> Affects Versions: 4.2.0
> Environment: branch: master-stable, hypervisor :KVM
> Reporter: prashant kumar mishra
> Assignee: Bharat Kumar
> Fix For: 4.2.0
>
> Attachments: Logs_DB.rar
>
>
> Steps to reproduce
> ---------------------------
> 1-prepare CS setup with kvm
> 2-set memory overcommit ratio to 2
> 3-deploy a vm with medium service offering(ram=1024MB, cpu=1000)
> 4-run cat /proc/meminfo on guest OS
> Expected
> --------------
> since there is no contention Guest OS should get 1024 MB
> Actual
> -------------
> Guest OS is getting 512 MB even there is no contention on host
> My observation
> ----------------------
> ----------------------
> On KVM host
> virsh # dominfo 7
> Id: 7
> Name: i-2-5-VM
> UUID: ebe3a215-3893-4edd-97c0-0ad4e0793359
> OS Type: hvm
> State: running
> CPU(s): 1
> CPU time: 45.8s
> Max memory: 1048576 kB
> Used memory: 524288 kB
> Persistent: no
> Autostart: disable
> Managed save: no
> On Guest VM
> -----------------------
> cat /proc/meminfo
> MemTotal: 524288
> ->Guest os gets memory=used memory on host(can be checked using "dominfo ")
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