diff options
| author | Jonas Aaberg <jonas.aberg@stericsson.com> | 2010-06-30 14:00:40 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@stericsson.com> | 2011-09-19 15:15:40 +0200 |
| commit | 0d7f77947a00d7a4deb6146f6b9276cf6762ec2f (patch) | |
| tree | 9da3a89a53eeb300379fc8e7ef8df293ef042c33 /init/Kconfig | |
| parent | 46c47211b0ea19c796b99ebdd8239b2ac46c3f9e (diff) | |
Boottime - A tool for automatic measurement of kernel and possible boot loader boot time.
The overhead is very low and the results will be found under sysfs/bootime, as well as
detailed results in debugfs under boottime/. The bootgraph* files are compatible with
scripts/bootgraph.pl. The reason for this patch is to provide data (sysfs/boottime)
suitable for automatic testcases as well as help for developers to reduce the boot
time (debugfs).
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2760
Change-Id: Id8ea7226b3f1f783448962195193b90699d32fc6
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/3174
Tested-by: Mian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com>
Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 412c21b00d5..0d262bd641d 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1266,6 +1266,15 @@ config PROFILING Say Y here to enable the extended profiling support mechanisms used by profilers such as OProfile. +config BOOTTIME + bool "Boot time measurments" + default n + help + Adds sysfs entries (boottime/) with start-up timing information. + If CONFIG_DEBUG_FS is enabled, detailed information about the + boot time, including system load during boot can be extraced. + This information can be visualised with help of the bootgraph script. + # # Place an empty function call at each tracepoint site. Can be # dynamically changed for a probe function. |