source: mypx/test/perf3.c @ 7

/*
 *  TOPPERS Software
 *      Toyohashi Open Platform for Embedded Real-Time Systems
 * 
 *  Copyright (C) 2007-2009 by Embedded and Real-Time Systems Laboratory
 *              Graduate School of Information Science, Nagoya Univ., JAPAN
 * 
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/*
 *              ¥«¡Œ¥Í¥ëÀ­ÇœÉŸ²Á¥×¥í¥°¥é¥à(3)
 *
 *  ÂÔ€Á²òœü€¹€ë¥¿¥¹¥¯€Î¿ô€Ë€è€ê¡€set_flg€ÎœèÍý»þŽÖ€¬€É€Î€è€Š€ËÊѲœ€¹€ë
 *  €«€ò·×¬€¹€ë€¿€á€Î¥×¥í¥°¥é¥à¡¥
 */

#include <kernel.h>
#include <t_syslog.h>
#include <test_lib.h>
#include <histogram.h>
#include "kernel_cfg.h"
#include "perf3.h"

/*
 *  ·×¬²ó¿ô€ÈŒÂ¹Ô»þŽÖʬÉÛ€òµ­Ï¿€¹€ëºÇÂç»þŽÖ
 */
#define NO_MEASURE      10000U                  /* ·×¬²ó¿ô */
#define MAX_TIME        1000U                   /* ŒÂ¹Ô»þŽÖʬÉÛ€òµ­Ï¿€¹€ëºÇÂç»þŽÖ */

/*
 *  ŒÂ¹Ô»þŽÖʬÉÛ€òµ­Ï¿€¹€ë¥á¥â¥êÎΰè
 */
static uint_t   histarea1[MAX_TIME + 1];

/*
 *  ·×¬¥¿¥¹¥¯€Î¥ê¥¹¥È
 */
static ID task_list[20] = {
        TASK1, TASK2, TASK3, TASK4, TASK5,
        TASK6, TASK7, TASK8, TASK9, TASK10,
        TASK11, TASK12, TASK13, TASK14, TASK15,
        TASK16, TASK17, TASK18, TASK19, TASK20
};

/*
 *  ·×¬¥¿¥¹¥¯¡ÊÃæÍ¥ÀèÅÙ¡Ë
 */
void task(intptr_t exinf)
{
        FLGPTN  flgptn;

        wai_flg(FLG1, 0x01U, TWF_ORW, &flgptn);
}

/*
 *  ·×¬¥ë¡Œ¥Á¥ó
 */
void
perf_eval(uint_t n)
{
        uint_t          i, j;

        init_hist(1, MAX_TIME, histarea1);

        for (i = 0; i < NO_MEASURE; i++) {
                ini_flg(FLG1);
                for (j = 0; j < n; j++) {
                        act_tsk(task_list[j]);
                }
                chg_pri(TSK_SELF, MAIN_PRIORITY_LOW);
                /* ¥¿¥¹¥¯€¬ÂÔ€ÁŸõÂÖ€ËÆþ€ë€Î€òÂÔ€Ä */
                chg_pri(TSK_SELF, TPRI_INI);

                begin_measure(1);
                set_flg(FLG1, 0x01U);
                end_measure(1);

                chg_pri(TSK_SELF, MAIN_PRIORITY_LOW);
                /* ¥¿¥¹¥¯€¬œªÎ»€¹€ë€Î€òÂÔ€Ä */
                chg_pri(TSK_SELF, TPRI_INI);
        }

        syslog_1(LOG_NOTICE, "Execution times of set_flg"
                                                        " when %d tasks are released from waiting.", n);
        print_hist(1);
        syslog_flush();
}

/*
 *  ¥á¥€¥ó¥¿¥¹¥¯¡Ê¹âÍ¥ÀèÅÙ¡Ë
 */
void main_task(intptr_t exinf)
{
        syslog_0(LOG_NOTICE, "Performance evaluation program (3)");
        syslog_flush();

        perf_eval(0);
        perf_eval(1);
        perf_eval(2);
        perf_eval(3);
        perf_eval(4);
        perf_eval(5);
        perf_eval(10);
        perf_eval(20);
        test_finish();
}