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SubjectRe: [PATCH 1/1] Drivers: hv: Introduce a policy for controlling channel affinity
On Wed, Jul 06, 2016 at 06:02:15PM -0700, kys@exchange.microsoft.com wrote:
> From: K. Y. Srinivasan <kys@exchange.microsoft.com>
>
> Introduce a mechanism to control how channels will be affinitized. We will
> support two policies:
>
> 1. HV_BALANCED: All performance critical channels will be dstributed
> evenly amongst all the available NUMA nodes. Once the Node is assigned,
> we will assign the CPU based on a simple round robin scheme.
>
> 2. HV_LOCALIZED: Only the primary channels are distributed across all
> NUMA nodes. Sub-channels will be in the same NUMA node as the primary
> channel. This is the current behaviour.
>
> The default policy will be the HV_BALANCED as it can minimize the remote
> memory access on NUMA machines with applications that span NUMA nodes.
>
> Signed-off-by: K. Y. Srinivasan <kys@exchange.microsoft.com>
> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
> ---
> drivers/hv/channel_mgmt.c | 68 +++++++++++++++++++++++++-------------------
> include/linux/hyperv.h | 23 +++++++++++++++
> 2 files changed, 62 insertions(+), 29 deletions(-)

Also doesn't apply cleanly :(


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