[libvirt] [RFC] Memory controller exploitation in libvirt

[Matthias Bolte]

2010/8/24 Nikunj A. Dadhania <nikunj at linux.vnet.ibm.com>:
>
> On Tue, 24 Aug 2010 11:02:49 +0200, Matthias Bolte <matthias.bolte at googlemail.com> wrote:
>
> <snip>

>> Regarding future additions:
>>
>>         CPUHardLimit
>>         CPUSoftLimit
>>         CPUShare
>>         CPUPercentage
>>         IO_BW_Softlimit
>>         IO_BW_Hardlimit
>>         IO_BW_percentage
>>
>> The CPU part of this is already possible via the
>> virDomainSetSchedulerParameters API. But they aren't expressed in the
>> domain XML config, maybe your suggesting to do this?
> Yes, thats correct for CPU.
>
> IO would need API as well as XML config changes. Does ESX also support Block
> IO bandwidth control?

ESX 4.1 added StorageIOAllocation for VirtualDisks that allows to set
a limit (upper bound) and a shares (priority) value for storage I/O
per disk.

Matthias