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vmware memory trimming

Posted on 2012-09-20
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could you tell me if memory trimming is used by vmware esxi.
according to the documentation it is a method used in vmware workstation, and nothing is listed for esxi servers
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Question by:dedri
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by:bluedan
ID: 38419919
Pleases see this Technical Doc by VMware and see if it helps.

Understanding Memory Management in VMware vSphere 5
http://www.vmware.com/files/pdf/mem_mgmt_perf_vsphere5.pdf

Memory Reclamation in ESXi is on page 6.

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by:dedri
ID: 38420795
I've already check this document and I didn't find anything regarding memory trimming. Because I found that this feature is used by vmware workstation I am wondering if this feature is used only in vmware workstation.
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bluedan earned 2000 total points
ID: 38430913
Memory Reclamation are mentods that I famiar with on how ESXi host will reclam memory from VM once phyical memory resources are used up.  If host memory are not fully used or memory limits are not reach, then ESXi host has no need to reclaim it.

Please see these two links and see if they help.

How to disable memory trimming on ESX 4.1
http://communities.vmware.com/message/1683614

MemTrimRate for ESX VMs
http://www.vreference.com/2009/12/16/memtrimrate-for-esx-vms/

Thanks,
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