source: mypx/test/perf2.c

/*
 *  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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/*
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 *  ŽÖ€¬€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 "perf2.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];

/*
 *  ·×¬¥ë¡Œ¥Á¥ó
 */
void
perf_eval(uint_t n)
{
        uint_t          i;
        intptr_t        data;
        PRI                     pri;

        ini_pdq(PDQ1);
        init_hist(1, MAX_TIME, histarea1);

        for (i = 0; i < n; i++) {
                data = i;
                snd_pdq(PDQ1, data, 1);
        }

        for (i = 0; i < NO_MEASURE; i++) {
                data = i;
                begin_measure(1);
                snd_pdq(PDQ1, data, 2);
                end_measure(1);
                rcv_pdq(PDQ1, &data, &pri);
        }

        syslog_1(LOG_NOTICE, "Execution times of snd_pdq"
                                                                " when %d data are queued.", n);
        print_hist(1);
        syslog_flush();
}

/*
 *  ¥á¥€¥ó¥¿¥¹¥¯¡ÊÄãÍ¥ÀèÅÙ¡Ë
 */
void main_task(intptr_t exinf)
{
        syslog_0(LOG_NOTICE, "Performance evaluation program (2)");
        syslog_flush();

        perf_eval(0);
        perf_eval(10);
        perf_eval(20);
        perf_eval(30);
        perf_eval(40);
        perf_eval(50);
        perf_eval(100);
        perf_eval(200);
        perf_eval(300);
        test_finish();
}