Re: [PATCH v4 0/2] tracing: fgraph: fix the quadratic shadow stack walk

[Alexei Starovoitov]

On Wed, Oct 21, 2026 at 10:44 AM Vineet Gupta <vineet.gupta@xxxxxxxxx> wrote:
> On a 60-core Sapphire Rapids machine with 400000 idle threads it took
> 227 s, inside a single bpf() syscall for the kprobe_multi case.

Acked-by: Alexei Starovoitov <ast@xxxxxxxxxx>