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Diffstat (limited to 'tools/bpf/bpftool/Documentation/bpftool-prog.rst')
| -rw-r--r-- | tools/bpf/bpftool/Documentation/bpftool-prog.rst | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/Documentation/bpftool-prog.rst b/tools/bpf/bpftool/Documentation/bpftool-prog.rst index 46862e85fed2..9f19404f470e 100644 --- a/tools/bpf/bpftool/Documentation/bpftool-prog.rst +++ b/tools/bpf/bpftool/Documentation/bpftool-prog.rst @@ -30,6 +30,7 @@ PROG COMMANDS | **bpftool** **prog detach** *PROG* *ATTACH_TYPE* [*MAP*] | **bpftool** **prog tracelog** | **bpftool** **prog run** *PROG* **data_in** *FILE* [**data_out** *FILE* [**data_size_out** *L*]] [**ctx_in** *FILE* [**ctx_out** *FILE* [**ctx_size_out** *M*]]] [**repeat** *N*] +| **bpftool** **prog profile** *PROG* [**duration** *DURATION*] *METRICs* | **bpftool** **prog help** | | *MAP* := { **id** *MAP_ID* | **pinned** *FILE* } @@ -48,6 +49,9 @@ PROG COMMANDS | *ATTACH_TYPE* := { | **msg_verdict** | **stream_verdict** | **stream_parser** | **flow_dissector** | } +| *METRIC* := { +| **cycles** | **instructions** | **l1d_loads** | **llc_misses** +| } DESCRIPTION @@ -189,6 +193,12 @@ DESCRIPTION not all of them can take the **ctx_in**/**ctx_out** arguments. bpftool does not perform checks on program types. + **bpftool prog profile** *PROG* [**duration** *DURATION*] *METRICs* + Profile *METRICs* for bpf program *PROG* for *DURATION* + seconds or until user hits Ctrl-C. *DURATION* is optional. + If *DURATION* is not specified, the profiling will run up to + UINT_MAX seconds. + **bpftool prog help** Print short help message. @@ -311,6 +321,15 @@ EXAMPLES **# rm /sys/fs/bpf/xdp1** +| +| **# bpftool prog profile id 337 duration 10 cycles instructions llc_misses** + +:: + 51397 run_cnt + 40176203 cycles (83.05%) + 42518139 instructions # 1.06 insns per cycle (83.39%) + 123 llc_misses # 2.89 LLC misses per million insns (83.15%) + SEE ALSO ======== **bpf**\ (2), |