On Fri, Jun 28, 2019 at 10:55 PM Andrii Nakryiko <andriin@xxxxxx> wrote: > > For BPF_MAP_TYPE_PERF_EVENT_ARRAY typically correct size is number of > possible CPUs. This is impossible to specify at compilation time. This > change adds automatic setting of PERF_EVENT_ARRAY size to number of > system CPUs, unless non-zero size is specified explicitly. This allows > to adjust size for advanced specific cases, while providing convenient > and logical defaults. > > Signed-off-by: Andrii Nakryiko <andriin@xxxxxx> Acked-by: Song Liu <songliubraving@xxxxxx>