From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Randy Dunlap <rdunlap@xenotime.net>,
Geunsik Lim <geunsik.lim@samsung.com>
Subject: [PATCH 6/9] ftrace: sched_switch plugin is deprecated
Date: Mon, 13 Feb 2012 22:39:15 -0500 [thread overview]
Message-ID: <20120214034007.862836421@goodmis.org> (raw)
In-Reply-To: 20120214033909.904564921@goodmis.org
[-- Attachment #1: Type: text/plain, Size: 1671 bytes --]
From: Geunsik Lim <geunsik.lim@samsung.com>
Actually, sched_switch function tracer is merged into wakeup/wakeup_rt
Update 'mini-HOWTO' for ftrace(Kernel function tracer).
If we want to trace "sched:sched_switch" to trace sched_switch func,
We may utilize event option.(e.g: trace-cmd list -e | grep sched)
This patch is based on Linux-3.3.rc2-SMP-PREEMPT
Link: http://lkml.kernel.org/r/1328695537-15081-1-git-send-email-geunsik.lim@gmail.com
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Geunsik Lim <geunsik.lim@samsung.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/trace/trace.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index a3f1bc5..10d5503 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2764,12 +2764,12 @@ static const char readme_msg[] =
"tracing mini-HOWTO:\n\n"
"# mount -t debugfs nodev /sys/kernel/debug\n\n"
"# cat /sys/kernel/debug/tracing/available_tracers\n"
- "wakeup preemptirqsoff preemptoff irqsoff function sched_switch nop\n\n"
+ "wakeup wakeup_rt preemptirqsoff preemptoff irqsoff function nop\n\n"
"# cat /sys/kernel/debug/tracing/current_tracer\n"
"nop\n"
- "# echo sched_switch > /sys/kernel/debug/tracing/current_tracer\n"
+ "# echo wakeup > /sys/kernel/debug/tracing/current_tracer\n"
"# cat /sys/kernel/debug/tracing/current_tracer\n"
- "sched_switch\n"
+ "wakeup\n"
"# cat /sys/kernel/debug/tracing/trace_options\n"
"noprint-parent nosym-offset nosym-addr noverbose\n"
"# echo print-parent > /sys/kernel/debug/tracing/trace_options\n"
--
1.7.8.3
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
next prev parent reply other threads:[~2012-02-14 3:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 3:39 [PATCH 0/9] [GIT PULL] tracing: cleanups, updates, and fixes Steven Rostedt
2012-02-14 3:39 ` [PATCH 1/9] ftrace: Change filter/notrace set functions to return exit code Steven Rostedt
2012-02-14 3:39 ` [PATCH 2/9] tracing/softirq: Move __raise_softirq_irqoff() out of header Steven Rostedt
2012-02-14 3:39 ` [PATCH 3/9] tracing/rcu: Add trace_##name##__rcuidle() static tracepoint for inside rcu_idle_exit() sections Steven Rostedt
2012-02-14 3:39 ` [PATCH 4/9] x86/tracing: Denote the power and cpuidle tracepoints as _rcuidle() Steven Rostedt
2012-02-14 3:39 ` [PATCH 5/9] cpuidle/tracing: Denote the tracepoints as being in rcu_idle_exit() section Steven Rostedt
2012-02-14 3:39 ` Steven Rostedt [this message]
2012-02-14 3:39 ` [PATCH 7/9] ftrace: Append wakeup_rt description of ftrace doc Steven Rostedt
2012-02-14 3:39 ` [PATCH 8/9] printk/tracing: Add console output tracing Steven Rostedt
2012-02-14 3:39 ` [PATCH 9/9] tracing/trivial: Use kcalloc instead of kzalloc to allocate array Steven Rostedt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120214034007.862836421@goodmis.org \
--to=rostedt@goodmis.org \
--cc=akpm@linux-foundation.org \
--cc=geunsik.lim@samsung.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=rdunlap@xenotime.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.