ftrace global trace_pipe_raw

[Claudio]

Hello Steven,

I am doing correlation of linux sched events, following all tasks between cpus,
and one thing that would be really convenient would be to have a global
trace_pipe_raw, in addition to the per-cpu ones, with already sorted events.

I would imagine the core functionality is already available, since trace_pipe
in the tracing directory already shows all events regardless of CPU, and so
it would be a matter of doing the same for trace_pipe_raw.

But is there a good reason why trace_pipe_raw is available only per-cpu?

Would work in the direction of adding a global trace_pipe_raw be considered
for inclusion?

Thank you,

Claudio