support/src/tmtests_support.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 1989-2010.
0005  *  On-Line Applications Research Corporation (OAR).
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
0009  * are met:
0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
0013  *    notice, this list of conditions and the following disclaimer in the
0014  *    documentation and/or other materials provided with the distribution.
0015  *
0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0026  * POSSIBILITY OF SUCH DAMAGE.
0027  */
0028
0029 #ifdef HAVE_CONFIG_H
0030 #include "config.h"
0031 #endif
0032
0033 #include <bsp.h>
0034 #include <rtems/btimer.h>
0035 #include "test_support.h"
0036 #include "timesys.h"
0037 #include "tmtests_empty_function.h"
0038
0039 void rtems_time_test_measure_operation(
0040   const char               *description,
0041   rtems_time_test_method_t  operation,
0042   void                     *argument,
0043   int                       iterations,
0044   int                       overhead
0045 )
0046 {
0047   int  i;
0048   uint32_t loop_overhead;
0049   uint32_t end_time;
0050
0051   benchmark_timer_initialize();
0052     for (i=0 ; i<iterations ; i++ ) {
0053       benchmark_timer_empty_operation( i, argument );
0054     }
0055   loop_overhead = benchmark_timer_read();
0056
0057   benchmark_timer_initialize();
0058     for (i=0 ; i<iterations ; i++ ) {
0059       (*operation)( i, argument );
0060     }
0061   end_time = benchmark_timer_read();
0062
0063   put_time(
0064     description,
0065     end_time,
0066     iterations,
0067     loop_overhead,
0068     overhead
0069   );
0070 }