bpftool-perf

BPFTOOL-PERF(8)                                                BPFTOOL-PERF(8)



NAME
       bpftool-perf - tool for inspection of perf related bpf prog attachments

SYNOPSIS
          bpftool [OPTIONS] perf COMMAND

          OPTIONS := { [{ -j | --json }] [{ -p | --pretty }] }

          COMMANDS := { show | list | help }

PERF COMMANDS
       bpftool perf { show | list }
       bpftool perf help


DESCRIPTION
          bpftool perf { show | list }
                 List all raw_tracepoint, tracepoint, kprobe attachment in the
                 system.

                 Output will start with process id and file descriptor in that
                 process, followed by bpf program id, attachment information,
                 and attachment point.  The attachment point for
                 raw_tracepoint/tracepoint is the trace probe name.  The
                 attachment point for k[ret]probe is either symbol name and
                 offset, or a kernel virtual address.  The attachment point
                 for u[ret]probe is the file name and the file offset.

          bpftool perf help
                 Print short help message.

OPTIONS
          -h, --help
                 Print short generic help message (similar to bpftool help).

          -V, --version
                 Print version number (similar to bpftool version).

          -j, --json
                 Generate JSON output. For commands that cannot produce JSON,
                 this option has no effect.

          -p, --pretty
                 Generate human-readable JSON output. Implies -j.

          -d, --debug
                 Print all logs available from libbpf, including debug-level
                 information.

EXAMPLES
       # bpftool perf


          pid 21711  fd 5: prog_id 5  kprobe  func __x64_sys_write  offset 0
          pid 21765  fd 5: prog_id 7  kretprobe  func __x64_sys_nanosleep  offset 0
          pid 21767  fd 5: prog_id 8  tracepoint  sys_enter_nanosleep
          pid 21800  fd 5: prog_id 9  uprobe  filename /home/yhs/a.out  offset 1159

       # bpftool -j perf


          [{"pid":21711,"fd":5,"prog_id":5,"fd_type":"kprobe","func":"__x64_sys_write","offset":0}, \
           {"pid":21765,"fd":5,"prog_id":7,"fd_type":"kretprobe","func":"__x64_sys_nanosleep","offset":0}, \
           {"pid":21767,"fd":5,"prog_id":8,"fd_type":"tracepoint","tracepoint":"sys_enter_nanosleep"}, \
           {"pid":21800,"fd":5,"prog_id":9,"fd_type":"uprobe","filename":"/home/yhs/a.out","offset":1159}]

SEE ALSO
          bpf(2), bpf-helpers(7), bpftool(8), bpftool-prog(8), bpftool-map(8),
          bpftool-cgroup(8), bpftool-feature(8), bpftool-net(8),
          bpftool-btf(8)



                                                               BPFTOOL-PERF(8)