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ftrace.event {
task.task_newtask {
filter = "pid < 128"
enable
}
kprobes.vfs_read {
probes = "vfs_read $arg1 $arg2"
filter = "common_pid < 200"
enable
}
synthetic.initcall_latency {
fields = "unsigned long func", "u64 lat"
actions = "hist:keys=func.sym,lat:vals=lat:sort=lat"
}
initcall.initcall_start {
actions = "hist:keys=func:ts0=common_timestamp.usecs"
}
initcall.initcall_finish {
actions = "hist:keys=func:lat=common_timestamp.usecs-$ts0:onmatch(initcall.initcall_start).initcall_latency(func,$lat)"
}
}
ftrace.instance {
foo {
tracer = "function"
ftrace.filters = "user_*"
cpumask = 1
options = nosym-addr
buffer_size = 512KB
trace_clock = mono
event.signal.signal_deliver.actions=snapshot
}
bar {
tracer = "function"
ftrace.filters = "kernel_*"
cpumask = 2
trace_clock = x86-tsc
}
}
ftrace.alloc_snapshot
kernel {
trace_options = sym-addr
trace_event = "initcall:*"
trace_buf_size = 1M
ftrace = function
ftrace_filter = "vfs*"
}
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