pm-graph: AnalyzeBoot v2.2

- add -cgskip option to reduce callgraph output size
- add -cgfilter option to focus on a list of devices
- add -result option for exporting batch test results
- removed all phoronix hooks, use -result to enable batch testing
- changed argument -f to match sleegraph, -f = -callgraph
- use -fstat for function status instead of -f
- add -verbose option to print out timeline stats and kernel options
- include command string and kernel params in timeline output header

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 14 insertions, 4 deletions

diff --git a/tools/power/pm-graph/bootgraph.8 b/tools/power/pm-graph/bootgraph.8
index dbdafcf546df..64d513f80a2a 100644
--- a/tools/power/pm-graph/bootgraph.8
+++ b/tools/power/pm-graph/bootgraph.8
@@ -37,6 +37,9 @@ Print the current tool version
 Add the dmesg log to the html output. It will be viewable by
 clicking a button in the timeline.
 .TP
+\fB-result \fIfile\fR
+Export a results table to a text file for parsing.
+.TP
 \fB-o \fIname\fR
 Overrides the output subdirectory name when running a new test.
 Use {date}, {time}, {hostname} for current values.
@@ -44,14 +47,14 @@ Use {date}, {time}, {hostname} for current values.
 e.g. boot-{hostname}-{date}-{time}
 .SS "advanced"
 .TP
-\fB-f\fR
-Use ftrace to add function detail (default: disabled)
-.TP
-\fB-callgraph\fR
+\fB-f or -callgraph\fR
 Use ftrace to create initcall callgraphs (default: disabled). If -func
 is not used there will be one callgraph per initcall. This can produce
 very large outputs, i.e. 10MB - 100MB.
 .TP
+\fB-fstat\fR
+Use ftrace to add function detail (default: disabled)
+.TP
 \fB-maxdepth \fIlevel\fR
 limit the callgraph trace depth to \fIlevel\fR (default: 2). This is
 the best way to limit the output size when using -callgraph.
@@ -67,6 +70,13 @@ Reduce callgraph output in the timeline by limiting it to a list of calls. The
 argument can be a single function name or a comma delimited list.
 (default: none)
 .TP
+\fB-cgskip \fIfile\fR
+Reduce callgraph output in the timeline by skipping over uninteresting
+functions in the trace, e.g. printk or console_unlock. The functions listed
+in this file will show up as empty leaves in the callgraph with only the start/end
+times displayed.
+(default: none)
+.TP
 \fB-timeprec \fIn\fR
 Number of significant digits in timestamps (0:S, 3:ms, [6:us])
 .TP