Messages in this thread | | | From | Song Liu <> | Subject | Re: [PATCH v2 perf,bpf 09/11] perf-top: add option --bpf-event | Date | Fri, 15 Feb 2019 17:06:19 +0000 |
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> On Feb 15, 2019, at 6:27 AM, Arnaldo Carvalho de Melo <acme@redhat.com> wrote: > > Em Thu, Feb 14, 2019 at 04:00:10PM -0800, Song Liu escreveu: >> bpf events are only tracked when opts->bpf_event is enabled. This patch >> adds command line flag to enable this for perf-top. > > Shouldn't this start as enabled and we just provide a way to disable it > for testing purposes? Normally perf top works system wide, and then we > want to get info about BPF events, I think. > > - Arnaldo
We can enable it by default, and add a --no-bpf-event option to disable it for testing.
Thanks, Song
>> Signed-off-by: Song Liu <songliubraving@fb.com> >> --- >> tools/perf/builtin-top.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c >> index 27d8d42e0a4d..5271d7211b9c 100644 >> --- a/tools/perf/builtin-top.c >> +++ b/tools/perf/builtin-top.c >> @@ -1492,6 +1492,7 @@ int cmd_top(int argc, const char **argv) >> "Display raw encoding of assembly instructions (default)"), >> OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, >> "Enable kernel symbol demangling"), >> + OPT_BOOLEAN(0, "bpf-event", &opts->bpf_event, "record bpf events"), >> OPT_STRING(0, "objdump", &top.annotation_opts.objdump_path, "path", >> "objdump binary to use for disassembly and annotations"), >> OPT_STRING('M', "disassembler-style", &top.annotation_opts.disassembler_style, "disassembler style", >> -- >> 2.17.1
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