Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
60 lines
1.0 KiB
Plaintext
60 lines
1.0 KiB
Plaintext
ftrace.event {
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task.task_newtask {
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filter = "pid < 128"
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enable
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}
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kprobes.vfs_read {
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probes = "vfs_read $arg1 $arg2"
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filter = "common_pid < 200"
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enable
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}
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synthetic.initcall_latency {
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fields = "unsigned long func", "u64 lat"
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hist {
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keys = func.sym,lat
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values = lat
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sort = lat
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}
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}
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initcall.initcall_start.hist {
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keys = func;
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var.ts0 = common_timestamp.usecs
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}
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initcall.initcall_finish.hist {
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keys = func
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var.lat = common_timestamp.usecs - $ts0
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onmatch {
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event = initcall.initcall_start
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trace = initcall_latency, func, $lat
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}
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}
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}
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ftrace.instance {
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foo {
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tracer = "function"
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ftrace.filters = "user_*"
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cpumask = 1
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options = nosym-addr
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buffer_size = 512KB
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trace_clock = mono
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event.signal.signal_deliver.actions=snapshot
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}
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bar {
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tracer = "function"
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ftrace.filters = "kernel_*"
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cpumask = 2
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trace_clock = x86-tsc
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}
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}
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ftrace.alloc_snapshot
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kernel {
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trace_options = sym-addr
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trace_event = "initcall:*"
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trace_buf_size = 1M
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ftrace = function
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ftrace_filter = "vfs*"
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}
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