1 ftrace.event {
2 task.task_newtask {
3 filter = "pid < 128"
4 enable
5 }
6 kprobes.vfs_read {
7 probes = "vfs_read $arg1 $arg2"
8 filter = "common_pid < 200"
9 enable
10 }
11 synthetic.initcall_latency {
12 fields = "unsigned long func", "u64 lat"
13 hist {
14 keys = func.sym,lat
15 values = lat
16 sort = lat
17 }
18 }
19 initcall.initcall_start.hist {
20 keys = func;
21 var.ts0 = common_timestamp.usecs
22 }
23 initcall.initcall_finish.hist {
24 keys = func
25 var.lat = common_timestamp.usecs - $ts0
26 onmatch {
27 event = initcall.initcall_start
28 trace = initcall_latency, func, $lat
29 }
30 }
31 }
32
33 ftrace.instance {
34 foo {
35 tracer = "function"
36 ftrace.filters = "user_*"
37 cpumask = 1
38 options = nosym-addr
39 buffer_size = 512KB
40 trace_clock = mono
41 event.signal.signal_deliver.actions=snapshot
42 }
43 bar {
44 tracer = "function"
45 ftrace.filters = "kernel_*"
46 cpumask = 2
47 trace_clock = x86-tsc
48 }
49 }
50
51 ftrace.alloc_snapshot
52
53 kernel {
54 trace_options = sym-addr
55 trace_event = "initcall:*"
56 trace_buf_size = 1M
57 ftrace = function
58 ftrace_filter = "vfs*"
59 }
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