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Date:   Mon, 18 Jul 2022 15:43:13 +0300
From:   Tariq Toukan <>
To:     "David S. Miller" <>,
        Saeed Mahameed <>,
        Jakub Kicinski <>,
        Ingo Molnar <>,
        Peter Zijlstra <>,
        Juri Lelli <>
CC:     Eric Dumazet <>,
        Paolo Abeni <>, <>,
        Gal Pressman <>,
        Vincent Guittot <>,
        <>, Tariq Toukan <>
Subject: [PATCH net-next V2 0/2] mlx5: Use NUMA distance metrics


Expose the scheduler's sched_numa_find_closest() function, and use it in
mlx5 device driver.  This replaces the binary NUMA preference (local /
remote) with an improved one that minds the actual distances, so that
remote NUMAs with short distance are preferred over farther ones.

This has significant performance implications when using NUMA-aware
memory allocations, improving the throughput and CPU utilization.


Tariq Toukan (2):
  sched/topology: Expose sched_numa_find_closest
  net/mlx5e: Improve remote NUMA preferences used for the IRQ affinity

 drivers/net/ethernet/mellanox/mlx5/core/eq.c | 62 +++++++++++++++++++-
 include/linux/sched/topology.h               |  2 +
 kernel/sched/topology.c                      |  1 +
 3 files changed, 62 insertions(+), 3 deletions(-)


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