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.TH "BPFTOOL-PERF" 8 "" ""
.SH NAME
bpftool-perf \- tool for inspection of perf related bpf prog attachments
.SH SYNOPSIS
.INDENT 0.0
.INDENT 3.5
\fBbpftool\fP [\fIOPTIONS\fP] \fBperf\fP \fICOMMAND\fP
.sp
\fIOPTIONS\fP := { { \fB\-j\fP | \fB\-\-json\fP } [{ \fB\-p\fP | \fB\-\-pretty\fP }] | { \fB\-d\fP | \fB\-\-debug\fP } }
.sp
\fICOMMANDS\fP :=
{ \fBshow\fP | \fBlist\fP | \fBhelp\fP }
.UNINDENT
.UNINDENT
.SH PERF COMMANDS
.nf
\fBbpftool\fP \fBperf\fP { \fBshow\fP | \fBlist\fP }
\fBbpftool\fP \fBperf help\fP
.fi
.sp
.SH DESCRIPTION
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.TP
.B \fBbpftool perf { show | list }\fP
List all raw_tracepoint, tracepoint, kprobe attachment in the system.
.sp
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.
.TP
.B \fBbpftool perf help\fP
Print short help message.
.UNINDENT
.UNINDENT
.UNINDENT
.SH OPTIONS
.INDENT 0.0
.INDENT 3.5
.INDENT 0.0
.TP
.B  \-h\fP,\fB  \-\-help
Print short help message (similar to \fBbpftool help\fP).
.TP
.B  \-V\fP,\fB  \-\-version
Print bpftool\(aqs version number (similar to \fBbpftool version\fP), the
number of the libbpf version in use, and optional features that were
included when bpftool was compiled. Optional features include linking
against LLVM or libbfd to provide the disassembler for JIT\-ted
programs (\fBbpftool prog dump jited\fP) and usage of BPF skeletons
(some features like \fBbpftool prog profile\fP or showing pids
associated to BPF objects may rely on it).
.TP
.B  \-j\fP,\fB  \-\-json
Generate JSON output. For commands that cannot produce JSON, this
option has no effect.
.TP
.B  \-p\fP,\fB  \-\-pretty
Generate human\-readable JSON output. Implies \fB\-j\fP\&.
.TP
.B  \-d\fP,\fB  \-\-debug
Print all logs available, even debug\-level information. This includes
logs from libbpf as well as from the verifier, when attempting to
load programs.
.UNINDENT
.UNINDENT
.UNINDENT
.SH EXAMPLES
.nf
\fB# bpftool perf\fP
.fi
.sp
.INDENT 0.0
.INDENT 3.5
.sp
.EX
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
.EE
.UNINDENT
.UNINDENT
.nf

\fB# bpftool \-j perf\fP
.fi
.sp
.INDENT 0.0
.INDENT 3.5
.sp
.EX
[{\(dqpid\(dq:21711,\(dqfd\(dq:5,\(dqprog_id\(dq:5,\(dqfd_type\(dq:\(dqkprobe\(dq,\(dqfunc\(dq:\(dq__x64_sys_write\(dq,\(dqoffset\(dq:0}, \e
 {\(dqpid\(dq:21765,\(dqfd\(dq:5,\(dqprog_id\(dq:7,\(dqfd_type\(dq:\(dqkretprobe\(dq,\(dqfunc\(dq:\(dq__x64_sys_nanosleep\(dq,\(dqoffset\(dq:0}, \e
 {\(dqpid\(dq:21767,\(dqfd\(dq:5,\(dqprog_id\(dq:8,\(dqfd_type\(dq:\(dqtracepoint\(dq,\(dqtracepoint\(dq:\(dqsys_enter_nanosleep\(dq}, \e
 {\(dqpid\(dq:21800,\(dqfd\(dq:5,\(dqprog_id\(dq:9,\(dqfd_type\(dq:\(dquprobe\(dq,\(dqfilename\(dq:\(dq/home/yhs/a.out\(dq,\(dqoffset\(dq:1159}]
.EE
.UNINDENT
.UNINDENT
.SH SEE ALSO
.INDENT 0.0
.INDENT 3.5
\fBbpf\fP(2),
\fBbpf\-helpers\fP(7),
\fBbpftool\fP(8),
\fBbpftool\-btf\fP(8),
\fBbpftool\-cgroup\fP(8),
\fBbpftool\-feature\fP(8),
\fBbpftool\-gen\fP(8),
\fBbpftool\-iter\fP(8),
\fBbpftool\-link\fP(8),
\fBbpftool\-map\fP(8),
\fBbpftool\-net\fP(8),
\fBbpftool\-prog\fP(8),
\fBbpftool\-struct_ops\fP(8)
.UNINDENT
.UNINDENT
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