diff options
| author | Andrii Nakryiko <andriin@fb.com> | 2019-07-06 21:06:25 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-07-08 16:35:43 +0300 |
| commit | d7ff34d5fb5a2f6722786863c4afa79c51f8edf2 (patch) | |
| tree | a3ff890eaa896d7a5da5a87b8cae2f48c7eb184f /tools/bpf | |
| parent | fb84b8224655309e7d38f989e426b82a4543f115 (diff) | |
| download | linux-d7ff34d5fb5a2f6722786863c4afa79c51f8edf2.tar.xz | |
libbpf: auto-set PERF_EVENT_ARRAY size to number of CPUs
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@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/bpf')
0 files changed, 0 insertions, 0 deletions