[libvirt] [PATCH 0/7] Per domain bandwidth settings
Alexander Burluka
aburluka at virtuozzo.com
Wed Jan 13 10:17:46 UTC 2016
You are absolutely right, this patchset allows to set domain top-level
cpu.cfs_period_us and cpu.cfs_quota_us cgroups. Can you please
explain problem case a little bit more detailed? This code does not
affect top-level cpuset cgroup, only quota and period, so there is no
visible troubles for me. Thank you!
On 01/12/2016 08:30 PM, Michal Privoznik wrote:
> On 12.01.2016 17:42, 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.
>>
>> 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(-)
>>
> Similarly to Laine, I have not went through the patches in detail, but
> does this patch set touch the domain top-level cgroup? If so we may be
> in trouble the minute we want to pin the vcpus elsewhere - if it is
> touching the cpuset cgroup too.
>
> Michal
--
Regards,
Alexander Burluka
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