trace-cmd-start (1) - Linux Man Pages
trace-cmd-start: start the Ftrace Linux kernel tracer without recording
trace-cmd-start - start the Ftrace Linux kernel tracer without recording
The trace-cmd(1) start enables all the Ftrace tracing the same way trace-cmd-record(1) does. The difference is that it does not run threads to create a trace.dat file. This is useful just to enable Ftrace and you are only interested in the trace after some event has occurred and the trace is stopped. Then the trace can be read straight from the Ftrace pseudo file system or can be extracted with trace-cmd-extract(1).
The options are the same as trace-cmd-record(1), except that it does not take options specific to recording (-s, -o, -F, -N, and -t).
rostedt [at] goodmis.org
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