Hello:
This patch was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Thu, 01 Jun 2023 18:21:54 +0200 you wrote:
> Currently we observed a significant performance degradation in
> samples/bpf xdp1 and xdp2, due XDP multibuffer "xdp.frags" handling,
> added in commit 772251742262 ("samples/bpf: fixup some tools to be able
> to support xdp multibuffer").
>
> This patch reduce the overhead by avoiding to read/load shared_info
> (sinfo) memory area, when XDP packet don't have any frags. This improves
> performance because sinfo is located in another cacheline.
>
> [...]
Here is the summary with links:
- [bpf-next,V2] bpf/xdp: optimize bpf_xdp_pointer to avoid reading sinfo
https://git.kernel.org/bpf/bpf-next/c/411486626e57
You are awesome, thank you!
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