On Thu, 2 Mar 2017 19:38:27 -0500 Steven Rostedt <rost...@goodmis.org> wrote:
> On Thu, 2 Mar 2017 16:12:15 -0800 > Todd Brandt <todd.e.bra...@linux.intel.com> wrote: > > > Early trace callgraphs can be extremely large on systems with > > several seconds of boot time. The max_depth parameter limits how > > deep the graph trace goes and reduces the output size. This > > parameter is the same as the max_graph_depth file in debugfs. > > I'll take this with one modification I'll make. s/debugfs/tracefs/ > because it's really the tracefs file system now. It just happens to be > automatically mounted in the debugfs file system. But can be by itself > in /sys/kernel/tracing/ > > -- Steve > > > > > Signed-off-by: Todd Brandt <todd.e.bra...@linux.intel.com> > > --- > > Documentation/admin-guide/kernel-parameters.txt | 6 ++++++ > > kernel/trace/ftrace.c | 9 +++++++++ > > 2 files changed, 15 insertions(+) > > > > diff --git a/Documentation/admin-guide/kernel-parameters.txt > > b/Documentation/admin-guide/kernel-parameters.txt > > index 986e443..1a8575f 100644 > > --- a/Documentation/admin-guide/kernel-parameters.txt > > +++ b/Documentation/admin-guide/kernel-parameters.txt > > @@ -1183,6 +1183,12 @@ > > functions that can be changed at run time by the > > set_graph_notrace file in the debugfs tracing directory. I need to make a patch to update the old documentation to reflect this as well. But I'll do that another time. -- Steve
