Anthony Liguori wrote:
Sukanto Ghosh wrote:
Hi all,
I have two questions regarding KVM:
i) Is a VCPU scheduled like a normal Linux process
A normal process.
or there is some mechanism by which performance guarantees can be
provided to the VCPUs ?
FWIW, there are various mechanisms to do scheduler tuning in Linux.
cpusets and cgroups both provide mechanisms to ensure "performance
guarantees".
are any of these mechanisms currently being used in kvm ?
ii) Who does the allocation of host physical memory to the guest, is
it KVM module or the associated QEmu process ?
The QEMU process allocates the memory via malloc().
Doesn't the QEMU process and the guest have different address-spaces ?
So, how can it malloc for the guest ? I thought the QEMU process
requests for the memory allocation to the kvm module via the /dev/kvm
device node.
Thanks and regards
Sukanto
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