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//=================================================================
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//
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// cpuload.c
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//
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// test case for the cpuload code.
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 2002 Andrew Lunn
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): asl
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// Contributors: asl
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// Date: 2002-08-06
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// Description: Tests the calculation code
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//####DESCRIPTIONEND####
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#include <cyg/hal/hal_arch.h>
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#include <cyg/kernel/kapi.h>
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#include <cyg/infra/testcase.h>
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#include <cyg/infra/diag.h>
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#include <cyg/cpuload/cpuload.h>
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void
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do_test(cyg_addrword_t data) {
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cyg_uint32 calibration;
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cyg_cpuload_t cpuload;
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cyg_handle_t handle;
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cyg_uint32 average_point1s;
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cyg_uint32 average_1s;
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cyg_uint32 average_10s;
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cyg_uint32 i,j;
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CYG_TEST_INFO("About to calibrate cpuload");
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cyg_cpuload_calibrate(&calibration);
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CYG_TEST_INFO("Performing 100% load test");
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cyg_cpuload_create(&cpuload,calibration,&handle);
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/* Busy loop doing useless work. This will cause the cpu load to be
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100%. After all these iterations, check the measured load really
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is 100%. */
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for (i=250; i--; ) {
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for (j=calibration*10; j-- ; )
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;
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cyg_cpuload_get(handle,&average_point1s,&average_1s,&average_10s);
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/* diag_printf("%d %d %d\n",average_point1s,average_1s,average_10s);*/
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}
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/* Rounding errors mean it will probably never reach 100% */
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if ((average_point1s == 100) &&
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(average_1s >= 99) && (average_1s <=100) &&
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(average_10s >= 98) && (average_10s <= 100))
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CYG_TEST_PASS("100% load o.k.");
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else {
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CYG_TEST_FAIL("100% load");
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}
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/* Sleeping doing nothing. This will cause the cpuload to be
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0%. After all these iterations, check the measured load really is
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0%. */
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CYG_TEST_INFO("Performing 0% load test");
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for (i=350; i-- ; ) {
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cyg_thread_delay(10);
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cyg_cpuload_get(handle,&average_point1s,&average_1s,&average_10s);
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/* diag_printf("%d %d %d\n",average_point1s,average_1s,average_10s);*/
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}
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if ((average_point1s == 0) &&
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(average_1s == 0) &&
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(average_10s >= 0) && (average_10s <= 2))
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CYG_TEST_PASS_FINISH("0% load o.k.");
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else {
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CYG_TEST_FAIL_FINISH("0% load");
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}
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}
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externC void
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cyg_start(void) {
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#ifdef CYGPKG_HAL_SYNTH
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CYG_TEST_NA("Not applicable to Synth target");
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#else
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static char stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
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static cyg_handle_t handle;
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static cyg_thread thread;
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CYG_TEST_INIT();
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cyg_thread_create(4,do_test,0,"cpuload",
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stack,sizeof(stack),&handle,&thread);
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cyg_thread_resume(handle);
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cyg_scheduler_start();
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#endif
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}
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