On 09/03/2014 06:15 PM, John Ferlan wrote: > The following patches will add more support for IOThreads not completed > from the initial patches. These changes support the remaining elements of > bz https://bugzilla.redhat.com/show_bug.cgi?id=1101574 (working through > unsetting the private bits - as there's nothing in there that should > necessarily be private). > > Changes: > > 1. Add "--iothread" option to virsh attach-disk to allow using a specific > iothread when attaching a disk > > 2. Add the ability to set CPU affinity for an IOThread. This involves > multiple steps (patches 2-6) of adding the infrastructure to support > setting scheduler affinity for the IOThread including cgroup setup. > For the most part it's a "copy" of the vCPU pinning code, but without > the external interfaces - those will come at a later time after RHEL7.1. > > 3. Add to <cpuset/> a new element <iothreadpin iothread='#" cpuset="string"/> > > NOTE: I can combine any/all of patches 2-6 - I just kept them separate > so it wasn't a larger single patch. IMO the split is fine as-is (maybe with the exception of the little cleanup in 5/7). > John Ferlan (7): > virsh: Add iothread to 'attach-disk' > qemu: Issue query-iothreads and to get list of active IOThreads > vircgroup: Introduce virCgroupNewIOThread > qemu_domain: Add niothreadpids and iothreadpids > qemu_cgroup: Introduce cgroup functions for IOThreads > qemu: Allow pinning specific IOThreads to a CPU > domain_conf: Add iothreadpin to cputune > ... > 22 files changed, 717 insertions(+), 15 deletions(-) > create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cputune-iothreads.xml > Looks good to me as well. ACK series. Jan
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