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| author | Américo Wang <xiyou.wangcong@gmail.com> | 2010-05-26 12:57:53 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-06-08 23:31:28 +0200 |
| commit | 30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e (patch) | |
| tree | b28f8232756e0de57ded858d6584724317b405ef /kernel/trace/Kconfig | |
| parent | perf: Drop the skip argument from perf_arch_fetch_regs_caller (diff) | |
| download | linux-30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e.tar.xz linux-30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e.zip | |
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/Kconfig | 17 |
1 files changed, 0 insertions, 17 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 8b1797c4545b..572992abc71c 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 |