What is the valid upper limit of memory overcommit

asked 2015-10-23 02:35:08 -0500

onnnring gravatar image

We use memory over commit in the system, and ram_allocation_ratio is set to 6. Default value for the RAM is 1.5.

But the issue is we still met with the resource issue: raise libvirtError (\'virDomainCreateWithFlags() failed\', dom=self)\n', libvirtError: internal error: early end of file from monitor: possible problem:\nCannot set up guest memory 'pc.ram': Cannot allocate memory\n\n"]

Actually we did the overcommit for the CPU, and it works well. But how can we do that for the RAM, or is there any problem for the RAM overcommit. Further, openstack icehouse is used.

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