On Thu, Jul 18, 2024 at 2:44 PM Yonghong Song <yonghong.song@xxxxxxxxx> wrote: > > > > $ perf record -- ./bench -w3 -d10 -a --nr-batch-iters=4096 private-stack > > 18.94% bench [k] > > 16.88% bench bpf_prog_bcf7977d3b93787c_func1 [k] bpf_prog_bcf7977d3b93787c_func1 > > 15.77% bench bpf_trampoline_6442522961 [k] ... > > NOTE: I tried 6.4 perf and 6.10 perf, both of which have issues. I will investigate this further. > > I tried with perf built with latest bpf-next and with no-private-stack, the issue still > exists. Will debug more. Try this fix: https://lore.kernel.org/all/20240714065533.1112616-1-houtao@xxxxxxxxxxxxxxx/ btw you were cc-ed on it. your @ fb goes to spam ? ;)