trace-cmd: Add an option to set saved_cmdlines_size

The tracing file saved_cmdlines_size allows setting the number of entries
that saved_cmdlines will contain. The latter is then dumped into the
trace.dat file to map PIDs with comm. The default value is 128.

Link: http://lore.kernel.org/linux-trace-devel/1573647257-317361-2-git-send-email-vincent.donnefort@arm.com

Signed-off-by: Vincent Donnefort <vincent.donnefort@arm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
3 files changed