[libvirt] [PATCH 0/9] Add throttle blkio cgroup support for libvirt

Gao feng gaofeng at cn.fujitsu.com
Mon Dec 2 06:47:55 UTC 2013


Right now, libvirt only supports the cfq based blkio cgorup,
this means if the block devices doesn't use cfq scheduler, the
blkio cgroup will loss effect.

This patchset adds the throttle blkio cgroup support for libvirt,
intoduces four elements for domain configuration and extend the
virsh command blkiotune.

This patchset is a new version of Guan Qiang's patchset
://www.redhat.com/archives/libvir-list/2013-October/msg01066.html

Change form Guan Qiang's patchset:
1, split to 8 patches, make logic more clear
2, change the type of read/write iops form unsigned long long to unsigned int,
   trying to set read/write iops to the value which bigger than max number of
   unsigned int will fail.
3, fix some logic shortage.

Gao feng (9):
  rename virDomainBlkioDeviceWeightParseXML to
    virDomainBlkioDeviceParseXML
  rename virBlkioDeviceWeightArrayClear to virBlkioDeviceArrayClear
  rename virBlkioDeviceWeightPtr to virBlkioDevicePtr
  domain: introduce xml elements for throttle blkio cgroup
  blkio: Setting throttle blkio cgroup for domain
  qemu: allow to setup throttle blkio cgroup through virsh
  virsh: add virsh manual for setting throttle blkio cgroup
  lxc: allow to setup throttle blkio cgroup through virsh
  qemu: add new throttle blkio cgroup elements to the test xml

 docs/schemas/domaincommon.rng                      |  28 +-
 include/libvirt/libvirt.h.in                       |  45 ++
 src/conf/domain_conf.c                             | 113 +++-
 src/conf/domain_conf.h                             |  16 +-
 src/libvirt_private.syms                           |   5 +-
 src/lxc/lxc_cgroup.c                               |  12 +-
 src/lxc/lxc_driver.c                               | 649 ++++++++++++++++++++-
 src/qemu/qemu_cgroup.c                             |  13 +-
 src/qemu/qemu_driver.c                             | 432 ++++++++++++--
 src/util/vircgroup.c                               | 170 +++++-
 src/util/vircgroup.h                               |  18 +
 .../qemuxml2argv-blkiotune-device.xml              |   8 +
 tools/virsh-domain.c                               |  64 ++
 tools/virsh.pod                                    |  36 +-
 14 files changed, 1485 insertions(+), 124 deletions(-)

-- 
1.8.3.1




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