zephyr

History

Allan Stephens 9d0c28b892 Remove unnecessary sample project use of CONTEXT_MONITOR Revises boot time benchmarking project so it doesn't utilize the CONTEXT_MONITOR capabililty, which is still [EXPERIMENTAL] and thus could result in potentially misleading results. Revises ARM M3/4 ISR installation project, which doesn't actual require the CONTEXT_MONITOR capability. Change-Id: I45d2abe85a0049b0c745652d2e78210c9696016d Signed-off-by: Allan Stephens <allan.stephens@windriver.com>		2016-02-05 20:13:45 -05:00
..
generic_pc	Remove unnecessary sample project use of CONTEXT_MONITOR	2016-02-05 20:13:45 -05:00
quark	First commit	2015-04-10 16:44:37 -07:00
src	Fix spaces after #ifdef	2016-02-05 20:13:33 -05:00
check_prj_conf.mk	First commit	2015-04-10 16:44:37 -07:00
get_prj_conf.mk	First commit	2015-04-10 16:44:37 -07:00
Makefile	First commit	2015-04-10 16:44:37 -07:00
prj.vpf	First commit	2015-04-10 16:44:37 -07:00
README.txt	First commit	2015-04-10 16:44:37 -07:00

README.txt

Title:  BootTime

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 pristine
    make BOOTTIME_QUALIFIER=best microkernel.qemu

    make pristine
    make BOOTTIME_QUALIFIER=default microkernel.qemu

    make pristine
    make BOOTTIME_QUALIFIER=worst microkernel.qemu

If executing on Simics, substitute 'simics' for 'qemu' in the command line.

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

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.
===================================================================
VXMICRO PROJECT EXECUTION SUCCESSFUL