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