Re: [PATCH 0/7] Per domain bandwidth settings

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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

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