Changbin Du
59486fb0c8
perf ftrace: Add option 'verbose' to show more info for graph tracer ...
Sometimes we want ftrace display more and longer information about the
trace.
$ sudo perf ftrace -G '*'
2) 0.979 us | mutex_unlock();
2) 1.540 us | __fsnotify_parent();
2) 0.433 us | fsnotify();
$ sudo perf ftrace -G '*' --graph-opts verbose
14160.770883 | 0) <...>-47814 | .... | 1.289 us | mutex_unlock();
14160.770886 | 0) <...>-47814 | .... | 1.624 us | __fsnotify_parent();
14160.770887 | 0) <...>-47814 | .... | 0.636 us | fsnotify();
14160.770888 | 0) <...>-47814 | .... | 0.328 us | __sb_end_write();
14160.770888 | 0) <...>-47814 | d... | 0.430 us | fpregs_assert_state_consistent();
14160.770889 | 0) <...>-47814 | d... | | do_syscall_64() {
14160.770889 | 0) <...>-47814 | .... | | __x64_sys_close() {
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Link: http://lore.kernel.org/lkml/20200808023141.14227-13-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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59486fb0c8