RE: [PATCH v3 3/8] Documentation: tracing: Add tracing_on option to boot-time tracer
From: Bird, Tim <hidden>
Date: 2020-09-10 13:31:21
Also in:
linux-kselftest, lkml
-----Original Message----- From: Masami Hiramatsu
>
quoted hunk ↗ jump to hunk
Add tracing_on option description to the boot-time tracer. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> --- Documentation/trace/boottime-trace.rst | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/Documentation/trace/boottime-trace.rst b/Documentation/trace/boottime-trace.rst index dcb390075ca1..1341b449acaa 100644 --- a/Documentation/trace/boottime-trace.rst +++ b/Documentation/trace/boottime-trace.rst@@ -61,6 +61,10 @@ These options can be used for each instance including global ftrace node. ftrace.[instance.INSTANCE.]options = OPT1[, OPT2[...]] Enable given ftrace options. +ftrace.[instance.INSTANCE.]tracing_on = 0|1 + Enable/Disable tracing on this instance when boot.
when boot. -> when booting. (or when boot. -> on boot.) -- Tim
+ (you can enable it by the "traceon" event trigger action)
+
ftrace.[instance.INSTANCE.]trace_clock = CLOCK
Set given CLOCK to ftrace's trace_clock.