[PATCH 02/23] net: mana: Assign interrupts to CPUs based on NUMA nodes
authorSaurabh Sengar <ssengar@linux.microsoft.com>
Tue, 1 Nov 2022 06:06:01 +0000 (23:06 -0700)
committerSalvatore Bonaccorso <carnil@debian.org>
Fri, 29 Sep 2023 04:15:31 +0000 (05:15 +0100)
commitdb606d6cf7226a4140396fa0e16604b75e5a432b
tree65750dad39e4ae965b6ef9e4bbd12a2bed954850
parent1ca82205624f578057f0d40f6ab3d447eafcf112
[PATCH 02/23] net: mana: Assign interrupts to CPUs based on NUMA nodes

In large VMs with multiple NUMA nodes, network performance is usually
best if network interrupts are all assigned to the same virtual NUMA
node. This patch assigns online CPU according to a numa aware policy,
local cpus are returned first, followed by non-local ones, then it wraps
around.

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://lore.kernel.org/r/1667282761-11547-1-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
(cherry picked from commit 71fa6887eeca7b631528f9c7a39815498de8028c)
Signed-off-by: Bastian Blank <waldi@debian.org>
Gbp-Pq: Topic features/all/ethernet-microsoft
Gbp-Pq: Name 0002-net-mana-Assign-interrupts-to-CPUs-based-on-NUMA-nod.patch
drivers/net/ethernet/microsoft/mana/gdma.h
drivers/net/ethernet/microsoft/mana/gdma_main.c