Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1275895

Re: [PATCH 2/3] ftrace: add ftrace-buffer option

From Steven Rostedt <rostedt@goodmis.org>
Newsgroups linux.kernel
Subject Re: [PATCH 2/3] ftrace: add ftrace-buffer option
Date 2015-11-23 22:50 +0100
Message-ID <qy79M-7sk-13@gated-at.bofh.it> (permalink)
References <qqw5k-2HW-11@gated-at.bofh.it> <qqw5k-2HW-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Mon,  2 Nov 2015 17:42:43 -0500
Mathieu Desnoyers <mathieu.desnoyers@efficios.com> wrote:

> In order to use ftrace tracers to generate tracepoints without doing
> tracing to its own hardcoded ring buffers, add a ftrace-buffer option
> (default: 1). When set to 0, it disables tracing into the ftrace
> hardcoded buffers.
> 

This should be a tracer specific option. And it shouldn't be called
"ftrace-buffer" as that is a very confusing name.

Perhaps I can add an option that will prevent the snapshots as well.
Perhaps an option called "quiet", and a "no_snapshot" one too. I can
create the no snapshot one. But this should be converted to "quiet" and
added as a tracer specific option.

-- Steve


> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> CC: Thomas Gleixner <tglx@linutronix.de>
> CC: Steven Rostedt <rostedt@goodmis.org>
> CC: Ingo Molnar <mingo@redhat.com>
> CC: Peter Zijlstra <peterz@infradead.org>
> ---
>  kernel/trace/trace.c         |  4 +++-
>  kernel/trace/trace.h         |  1 +
>  kernel/trace/trace_irqsoff.c | 19 +++++++++++--------
>  3 files changed, 15 insertions(+), 9 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

Re: [PATCH 2/3] ftrace: add ftrace-buffer option Steven Rostedt <rostedt@goodmis.org> - 2015-11-23 22:50 +0100
  Re: [PATCH 2/3] ftrace: add ftrace-buffer option Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-11-24 14:00 +0100

csiph-web