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    SubjectRe: [PATCH] net :mana : Add per-cpu stats for MANA device
    On Fri, Mar 08, 2024 at 11:22:44AM -0800, Jakub Kicinski wrote:
    > On Fri, 8 Mar 2024 18:51:58 +0000 Haiyang Zhang wrote:
    > > > Dynamic is a bit of an exaggeration, right? On a well-configured system
    > > > each CPU should use a single queue assigned thru XPS. And for manual
    > > > debug bpftrace should serve the purpose quite well.
    > >
    > > Some programs, like irqbalancer can dynamically change the CPU affinity,
    > > so we want to add the per-CPU counters for better understanding of the CPU
    > > usage.
    >
    > Do you have experimental data showing this making a difference
    > in production?
    Sure, will try to get that data for this discussion
    >
    > Seems unlikely, but if it does work we should enable it for all
    > devices, no driver by driver.
    You mean, if the usecase seems valid we should try to extend the framework
    mentioned by Rahul (https://lore.kernel.org/lkml/20240307072923.6cc8a2ba@kernel.org/)
    to include these stats as well?
    Will explore this a bit more and update. Thanks.

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