Messages in this thread | | | Date | Thu, 29 Oct 2020 12:44:20 +0530 | From | Srikar Dronamraju <> | Subject | Re: [PATCH 0/4] Powerpc: Better preemption for shared processor |
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* Waiman Long <longman@redhat.com> [2020-10-28 20:01:30]:
> > Srikar Dronamraju (4): > > powerpc: Refactor is_kvm_guest declaration to new header > > powerpc: Rename is_kvm_guest to check_kvm_guest > > powerpc: Reintroduce is_kvm_guest > > powerpc/paravirt: Use is_kvm_guest in vcpu_is_preempted > > > > arch/powerpc/include/asm/firmware.h | 6 ------ > > arch/powerpc/include/asm/kvm_guest.h | 25 +++++++++++++++++++++++++ > > arch/powerpc/include/asm/kvm_para.h | 2 +- > > arch/powerpc/include/asm/paravirt.h | 18 ++++++++++++++++++ > > arch/powerpc/kernel/firmware.c | 5 ++++- > > arch/powerpc/platforms/pseries/smp.c | 3 ++- > > 6 files changed, 50 insertions(+), 9 deletions(-) > > create mode 100644 arch/powerpc/include/asm/kvm_guest.h > > > This patch series looks good to me and the performance is nice too. > > Acked-by: Waiman Long <longman@redhat.com>
Thank you.
> > Just curious, is the performance mainly from the use of static_branch > (patches 1 - 3) or from reducing call to yield_count_of().
Because of the reduced call to yield_count
> > Cheers, > Longman >
-- Thanks and Regards Srikar Dronamraju
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