On Wed, 30 Oct 2024 13:49:08 -0600 Caleb Sander Mateos wrote:

net_dim() is currently passed a struct dim_sample argument by value.
struct dim_sample is 24 bytes. Since this is greater 16 bytes, x86-64
passes it on the stack. All callers have already initialized dim_sample
on the stack, so passing it by value requires pushing a duplicated copy
to the stack. Either witing to the stack and immediately reading it, or
perhaps dereferencing addresses relative to the stack pointer in a chain
of push instructions, seems to perform quite poorly.

Looks like patch 1 didn't get CCed to netdev. Please repost?
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pw-bot: cr