[libvirt] [PATCH 0/7] Per domain bandwidth settings

Alexander Burluka aburluka at virtuozzo.com
Wed Jan 13 10:24:40 UTC 2016



On 01/12/2016 08:19 PM, Laine Stump wrote:
> On 01/12/2016 11:42 AM, Alexander Burluka wrote:
>> We decide to make a global per domain bandwidth setting
>> as were discussed in mailing list earlier.
>> This patchset implements hierarchy top level cpu.cfs_period_us
>> and cpu.cfs_quota_us control knob. I've named this parameters
>> as global_period and global_quota.
>
> I haven't looked into the details of the patches (and don't really 
> feel qualified to do so), but wanted to mention a couple of things:
>
> * although there are examples in the RNG of elements and attributes 
> with underscores in their names, we had decided a few years ago that 
> they should be avoided, and capitalization be used instead (e.g. 
> globalPeriod). I truthfully don't know how well that's been adhered to 
> (and also see that there are already other sublements within cputune 
> that use _, e.g. emulator_period), so I don't know which way we should 
> try to be consistent (going either way could be seen as wrong), but 
> just thought I should mention it.
Sorry, I missed this agreement, so use consistent name. Thank you for 
notice. Can you please point a person who can help with this stylish 
question?
>
> * there are no new XML test cases that use the new elements.
My bad, will add them. Thank you!
>
>
>>
>> Alexander Burluka (7):
>>    Add global period definitions
>>    Add global quota parameter necessary definitions
>>    Add error checking on global quota and period
>>    Add new cgroup thread type
>>    Rename qemuSetupCgroupVcpuBW to qemuSetupBandwidthCgroup
>>    Implement qemuSetupGlobalCpuCgroup
>>    Implement handling of per-domain bandwidth settings
>>
>>   docs/schemas/domaincommon.rng    |  10 ++++
>>   include/libvirt/libvirt-domain.h |  32 ++++++++++
>>   src/conf/domain_conf.c           |  37 ++++++++++++
>>   src/conf/domain_conf.h           |   2 +
>>   src/qemu/qemu_cgroup.c           |  78 +++++++++++++++++++++---
>>   src/qemu/qemu_cgroup.h           |   7 ++-
>>   src/qemu/qemu_command.c          |   3 +-
>>   src/qemu/qemu_driver.c           | 125 
>> +++++++++++++++++++++++++++++++++++++--
>>   src/qemu/qemu_process.c          |   4 ++
>>   src/util/vircgroup.c             |   4 ++
>>   src/util/vircgroup.h             |   1 +
>>   11 files changed, 287 insertions(+), 16 deletions(-)
>>
>

-- 
Regards,
Alexander Burluka




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