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authorAmérico Wang <xiyou.wangcong@gmail.com>2010-05-26 18:57:53 +0800
committerFrederic Weisbecker <fweisbec@gmail.com>2010-06-08 23:31:28 +0200
commit30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e (patch)
treeb28f8232756e0de57ded858d6584724317b405ef /kernel/trace/Kconfig
parentb0f82b81fe6bbcf78d478071f33e44554726bc81 (diff)
downloadop-kernel-dev-30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e.zip
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tracing: Remove boot tracer
The boot tracer is useless. It simply logs the initcalls but in fact these initcalls are also logged through printk while using the initcall_debug kernel parameter. Nobody seem to be using it so far. Then just remove it. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Chase Douglas <chase.douglas@canonical.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Li Zefan <lizf@cn.fujitsu.com> LKML-Reference: <20100526105753.GA5677@cr0.nay.redhat.com> [ remove the hooks in main.c, and the headers ] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'kernel/trace/Kconfig')
-rw-r--r--kernel/trace/Kconfig17
1 files changed, 0 insertions, 17 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 8b1797c..572992a 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -229,23 +229,6 @@ config FTRACE_SYSCALLS
help
Basic tracer to catch the syscall entry and exit events.
-config BOOT_TRACER
- bool "Trace boot initcalls"
- select GENERIC_TRACER
- select CONTEXT_SWITCH_TRACER
- help
- This tracer helps developers to optimize boot times: it records
- the timings of the initcalls and traces key events and the identity
- of tasks that can cause boot delays, such as context-switches.
-
- Its aim is to be parsed by the scripts/bootgraph.pl tool to
- produce pretty graphics about boot inefficiencies, giving a visual
- representation of the delays during initcalls - but the raw
- /debug/tracing/trace text output is readable too.
-
- You must pass in initcall_debug and ftrace=initcall to the kernel
- command line to enable this on bootup.
-
config TRACE_BRANCH_PROFILING
bool
select GENERIC_TRACER
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