power/pm-graph/bootgraph.8

3 bootgraph \- Kernel boot timing analysis
21 The tool can also augment the timeline with ftrace data on custom target
22 functions as well as full trace callgraphs.
24 Generates output files in subdirectory: boot-yymmdd-HHMMSS
30 \fB-h\fR
33 \fB-v\fR
36 \fB-addlogs\fR
40 \fB-result \fIfile\fR
43 \fB-o \fIname\fR
47 e.g. boot-{hostname}-{date}-{time}
50 \fB-f or -callgraph\fR
51 Use ftrace to create initcall callgraphs (default: disabled). If -func
53 very large outputs, i.e. 10MB - 100MB.
55 \fB-fstat\fR
58 \fB-maxdepth \fIlevel\fR
60 the best way to limit the output size when using -callgraph.
62 \fB-mincg \fIt\fR
68 \fB-cgfilter \fI"func1,func2,..."\fR
73 \fB-cgskip \fIfile\fR
80 \fB-timeprec \fIn\fR
83 \fB-expandcg\fR
84 pre-expand the callgraph data in the html output (default: disabled)
86 \fB-func \fI"func1,func2,..."\fR
87 Instead of tracing each initcall, trace a custom list of functions (default: do_one_initcall)
89 \fB-reboot\fR
92   2. installs a cron job which re-runs the tool after reboot
96 \fB-manual\fR
100   3. after startup, re-run the tool with the same arguments and no command
105 \fB-dmesg \fIfile\fR
108 \fB-ftrace \fIfile\fR
109 Create HTML output from an existing ftrace file (used with -dmesg).
112 \fB-flistall\fR
114 possible values you can add to trace via the -func argument.
116 \fB-sysinfo\fR
126 \f(CW$ bootgraph -callgraph\fR
130 \f(CW$ bootgraph -addlogs -o "myboot-{date}-{time}"\fR
134 \f(CW$ sudo bootgraph -reboot -addlogs -o "latest-{hostname)"\fR
138 \f(CW$ sudo bootgraph -reboot -f\fR
142 \f(CW$ sudo bootgraph -reboot -callgraph -mincg 5\fR
144 Capture a new boot timeline with callgraph data over custom functions.
146 \f(CW$ sudo bootgraph -reboot -callgraph -func "acpi_ps_parse_aml,msleep"\fR
150 \f(CW$ sudo bootgraph -callgraph -manual\fR
156 \f(CW$ sudo bootgraph -callgraph # re-run the tool after restart\fR
162 \f(CW$ bootgraph -dmesg dmesg.txt -ftrace ftrace.txt -callgraph\fR
166 \f(CW$ bootgraph -dmesg dmesg.txt -ftrace ftrace.txt -addlogs\fR
169 dmesg(1), update-grub(8), crontab(1), reboot(8)