zephyr

History

Kumar Gala 7dcbbc39e7 build: move from srctree to ZEPHYR_BASE for app include paths $srctree for the application might not be set to be $ZEPHYR_BASE, use $ZEPHYR_BASE instead to be more explicit in the build. Change-Id: Iefa5ff59f246b584949329044f7a6531adc6ed62 Signed-off-by: Kumar Gala <kumar.gala@linaro.org>		2016-06-30 14:36:39 +00:00
..
ia32	move benchmark applications to tests/benchmark/	2016-02-11 13:08:44 -05:00
ia32_pci	move benchmark applications to tests/benchmark/	2016-02-11 13:08:44 -05:00
quark_d2000	move benchmark applications to tests/benchmark/	2016-02-11 13:08:44 -05:00
quark_se	move benchmark applications to tests/benchmark/	2016-02-11 13:08:44 -05:00
src	build: move from srctree to ZEPHYR_BASE for app include paths	2016-06-30 14:36:39 +00:00
Makefile	sanitycheck: enable qemu_x86_iamcu and prefer it over qemu_x86	2016-03-12 02:24:51 +00:00
prj.mdef	move benchmark applications to tests/benchmark/	2016-02-11 13:08:44 -05:00
README.txt	move benchmark applications to tests/benchmark/	2016-02-11 13:08:44 -05:00
testcase.ini	testcases: sanity check TCs get more language for real HW	2016-06-14 23:49:56 +00:00

README.txt

Title: Boot Time Measurement

Description:

BootTime measures the time:
   a) from system reset to kernel start (crt0.s's __start)
   b) from kernel start to begin of main()
   c) from kernel start to begin of first task
   d) from kernel start to when microkernel's main task goes immediately idle

The project can be built using one of the following three configurations:

best
-------
 - Disables most features
 - Provides best case boot measurement

default
-------
 - Default configuration options
 - Provides typical boot measurement

worst
-------
 - Enables most features.
 - Provides worst case boot measurement

--------------------------------------------------------------------------------

Building and Running Project:

This microkernel project outputs to the console.  It can be built and executed
on QEMU in three possibile configurations as follows:

    make BOOTTIME_QUALIFIER=best qemu

    make BOOTTIME_QUALIFIER=default qemu

    make BOOTTIME_QUALIFIER=worst qemu

--------------------------------------------------------------------------------

Troubleshooting:

Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:

    make clean          # discard results of previous builds
                        # but keep existing configuration info
or
    make pristine       # discard results of previous builds
                        # and restore pre-defined configuration info

--------------------------------------------------------------------------------

Sample Output:

tc_start() - Boot Time Measurement
MicroKernel Boot Result: Clock Frequency: 20 MHz
__start       : 377787 cycles, 18889 us
_start->main(): 3915 cycles, 195 us
_start->task  : 5898 cycles, 294 us
_start->idle  : 6399 cycles, 319 us
Boot Time Measurement finished
===================================================================
PASS - bootTimeTask.
===================================================================
PROJECT EXECUTION SUCCESSFUL