From: Steven Rostedt <rostedt@goodmis.org>
To: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
tglx@linutronix.de, namhyung@kernel.org,
linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org
Subject: Re: [RFC][PATCH 00/21] tracing: Inter-event (e.g. latency) support
Date: Thu, 9 Feb 2017 14:57:29 -0500 [thread overview]
Message-ID: <20170209145729.7b176e98@gandalf.local.home> (raw)
In-Reply-To: <1486660712.2871.107.camel@tzanussi-mobl.amr.corp.intel.com>
On Thu, 09 Feb 2017 11:18:32 -0600
Tom Zanussi <tom.zanussi@linux.intel.com> wrote:
> I think it might make a lot of sense at this point to actually create a
> system-wide list of active triggers e.g. tracing/events/triggers or
> something like that. It's something I've kind of wanted anyway, and
> would be really useful if not indispensable for this. Actually, I
> thought it might even be nice to have some kind of mini-fs or something
> making it easy to group sets of related triggers and enable and
> disable/remove them as a group, but a simple list would suffice too...
Note, (new) trace-cmd does this for you (by querying all trigger files).
# echo 'stacktrace if COMM ~ "system*"' > /debug/tracing/events/syscalls/sys_enter_open/trigger
# trace-cmd stat
Events:
(none enabled)
Triggers:
syscalls:sys_enter_open "stacktrace:unlimited if COMM ~ "system*""
Tracing is enabled
-- Steve
next prev parent reply other threads:[~2017-02-09 19:57 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-08 17:24 [RFC][PATCH 00/21] tracing: Inter-event (e.g. latency) support Tom Zanussi
2017-02-08 17:24 ` [RFC][PATCH 01/21] tracing: Add hist_field_name() accessor Tom Zanussi
2017-02-08 20:09 ` Steven Rostedt
2017-02-08 17:24 ` [RFC][PATCH 02/21] tracing: Reimplement log2 Tom Zanussi
2017-02-08 20:13 ` Steven Rostedt
2017-02-08 20:25 ` Tom Zanussi
2017-02-08 17:24 ` [RFC][PATCH 03/21] ring-buffer: Add TIME_EXTEND_ABS ring buffer type Tom Zanussi
2017-02-08 20:32 ` Steven Rostedt
2017-02-08 20:55 ` Tom Zanussi
2017-02-09 14:54 ` Steven Rostedt
2017-02-10 6:04 ` Namhyung Kim
2017-02-10 14:28 ` Steven Rostedt
2017-02-08 17:25 ` [RFC][PATCH 04/21] tracing: Give event triggers access to ring_buffer_event Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 05/21] tracing: Add ring buffer event param to hist field functions Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 06/21] tracing: Increase tracing map KEYS_MAX size Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 07/21] tracing: Break out hist trigger assignment parsing Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 08/21] tracing: Make traceprobe parsing code reusable Tom Zanussi
2017-02-09 20:40 ` Steven Rostedt
2017-02-08 17:25 ` [RFC][PATCH 09/21] tracing: Add hist trigger timestamp support Tom Zanussi
2017-02-10 6:14 ` Namhyung Kim
2017-02-08 17:25 ` [RFC][PATCH 10/21] tracing: Add per-element variable support to tracing_map Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 11/21] tracing: Add variable support to hist triggers Tom Zanussi
2017-02-13 6:03 ` Namhyung Kim
2017-02-14 15:25 ` Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 12/21] tracing: Account for variables in named trigger compatibility Tom Zanussi
2017-02-13 6:04 ` Namhyung Kim
2017-02-14 15:26 ` Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 13/21] tracing: Add simple expression support to hist triggers Tom Zanussi
2017-02-14 2:37 ` Namhyung Kim
2017-02-14 15:29 ` Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 14/21] tracing: Add variable reference handling " Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 15/21] tracing: Add usecs modifier for hist trigger timestamps Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 16/21] tracing: Add support for dynamic tracepoints Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 17/21] tracing: Add hist trigger action hook Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 18/21] tracing: Add support for 'synthetic' events Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 19/21] tracing: Add 'onmatch' hist trigger action support Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 20/21] tracing: Add 'onmax' " Tom Zanussi
2017-02-08 17:25 ` [RFC][PATCH 21/21] tracing: Add inter-event hist trigger Documentation Tom Zanussi
2017-02-08 20:01 ` [RFC][PATCH 00/21] tracing: Inter-event (e.g. latency) support Steven Rostedt
2017-02-08 20:19 ` Tom Zanussi
2017-02-08 23:28 ` Tom Zanussi
2017-02-09 2:14 ` Steven Rostedt
2017-02-08 23:13 ` Masami Hiramatsu
2017-02-09 1:14 ` Tom Zanussi
2017-02-09 14:18 ` Masami Hiramatsu
2017-02-09 17:18 ` Tom Zanussi
2017-02-09 19:57 ` Steven Rostedt [this message]
2017-02-09 14:46 ` Frank Ch. Eigler
2017-02-09 18:43 ` Tom Zanussi
2017-02-10 4:16 ` Namhyung Kim
2017-02-10 9:34 ` Masami Hiramatsu
2017-02-10 18:58 ` Tom Zanussi
2017-02-13 1:04 ` Namhyung Kim
2017-02-14 9:37 ` Masami Hiramatsu
2017-02-14 15:27 ` Tom Zanussi
2017-02-10 18:43 ` Tom Zanussi
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