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annotate packages/kernel/current/tests/timeslice.c @ 760:74589c7c236e

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* tests/fptest.c (alarm_fn): Added CYG_TEST_PASS() call to keep configtool happy.
author nickg
date Tue, 25 Feb 2003 18:42:00 +0000
parents d2c90368aeef
children 92cf4ff674de
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1 //==========================================================================
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2 //
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3 // timeslice.c
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4 //
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5 // Timeslice test
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6 //
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7 //==========================================================================
208
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
210
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37 // at http://sources.redhat.com/ecos/ecos-license/
208
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
182
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40 //==========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): nickg
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44 // Contributors: nickg
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45 // Date: 2001-06-18
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46 // Description: A basic timeslicing test.
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47 //
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48 //####DESCRIPTIONEND####
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49 //==========================================================================
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50
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51 #include <pkgconf/kernel.h>
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52 #include <pkgconf/hal.h>
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53
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54 #include <cyg/hal/hal_arch.h>
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55
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56 #include <cyg/kernel/smp.hxx>
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57
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58 #include <cyg/kernel/kapi.h>
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59
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60 #include <cyg/infra/testcase.h>
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61 #include <cyg/infra/diag.h>
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62
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63 //==========================================================================
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64
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65 #if defined(CYGSEM_KERNEL_SCHED_TIMESLICE) && \
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66 defined(CYGFUN_KERNEL_API_C) && \
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67 defined(CYGSEM_KERNEL_SCHED_MLQUEUE) && \
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68 defined(CYGVAR_KERNEL_COUNTERS_CLOCK) && \
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69 !defined(CYGDBG_INFRA_DIAG_USE_DEVICE) && \
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70 (CYGNUM_KERNEL_SCHED_PRIORITIES > 12)
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71
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72 //==========================================================================
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73
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74 #define STACK_SIZE CYGNUM_HAL_STACK_SIZE_TYPICAL*5
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75
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76 #define NTHREADS_MAX (CYGNUM_KERNEL_CPU_MAX*6)
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77
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78 static int ncpus = CYGNUM_KERNEL_CPU_MAX;
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79
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80 static char test_stack[STACK_SIZE];
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81 static cyg_thread test_thread;
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82 static cyg_handle_t main_thread;
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83
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84 static char stacks[NTHREADS_MAX][STACK_SIZE];
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85 static cyg_thread test_threads[NTHREADS_MAX];
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86 static cyg_handle_t threads[NTHREADS_MAX];
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87
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88 static volatile int failed = false;
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89
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90 static volatile cyg_uint32 slicerun[NTHREADS_MAX][CYGNUM_KERNEL_CPU_MAX];
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91
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92 //==========================================================================
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93
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94 void
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95 test_thread_timeslice(CYG_ADDRESS id)
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96 {
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97 for(;;)
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98 slicerun[id][CYG_KERNEL_CPU_THIS()]++;
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99 }
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100
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101 //==========================================================================
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102
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103 void run_test_timeslice(int nthread)
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104 {
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105 int i,j;
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106 cyg_uint32 cpu_total[CYGNUM_KERNEL_CPU_MAX];
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107 cyg_uint32 cpu_threads[CYGNUM_KERNEL_CPU_MAX];
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108 cyg_uint32 thread_total[NTHREADS_MAX];
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109
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110 CYG_TEST_INFO( "Timeslice Test: Check timeslicing works");
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111
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112 // Init flags.
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113 for (i = 0; i < nthread; i++)
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114 for( j = 0; j < ncpus; j++ )
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115 slicerun[i][j] = 0;
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116
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117 // Set my priority higher than any I plan to create
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118 cyg_thread_set_priority(cyg_thread_self(), 2);
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119
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120 for (i = 0; i < nthread; i++) {
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121 cyg_thread_create(10, // Priority - just a number
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122 test_thread_timeslice, // entry
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123 i, // index
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124 "test_thread", // Name
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125 &stacks[i][0], // Stack
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126 STACK_SIZE, // Size
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127 &threads[i], // Handle
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128 &test_threads[i] // Thread data structure
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129 );
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130 cyg_thread_resume( threads[i]);
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131 }
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132
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133 // Just wait a while, until the threads have all run for a bit.
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134 cyg_thread_delay( CYGNUM_KERNEL_SCHED_TIMESLICE_TICKS*100 );
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135
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136 // Suspend all the threads
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137 for (i = 0; i < nthread; i++) {
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138 cyg_thread_suspend(threads[i]);
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139 }
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140
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141
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142 // And check that a thread ran on each CPU, and that each thread
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143 // ran.
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144
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145
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146 diag_printf(" Thread ");
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147 for( j = 0; j < ncpus; j++ )
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148 {
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149 cpu_total[j] = 0;
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150 cpu_threads[j] = 0;
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151 // " %11d" __123456789ab"
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152 diag_printf(" CPU %2d",j);
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153 }
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154 // " %11d" __123456789ab"
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155 diag_printf(" Total\n");
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156 for (i = 0; i < nthread; i++)
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157 {
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158 thread_total[i] = 0;
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159 diag_printf(" %2d ",i);
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160 for( j = 0; j < ncpus; j++ )
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161 {
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162 thread_total[i] += slicerun[i][j];
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163 cpu_total[j] += slicerun[i][j];
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164 if( slicerun[i][j] > 0 )
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165 cpu_threads[j]++;
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166 diag_printf(" %11d",slicerun[i][j]);
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167 }
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168 diag_printf(" %11d\n",thread_total[i]);
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169 if( thread_total[i] == 0 )
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170 failed++;
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171 }
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172
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173 diag_printf(" Total ");
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174 for( j = 0; j < ncpus; j++ )
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175 diag_printf(" %11d",cpu_total[j]);
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176 diag_printf("\n");
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177 diag_printf("Threads ");
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178 for( j = 0; j < ncpus; j++ )
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179 {
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180 diag_printf(" %11d",cpu_threads[j]);
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181 if( cpu_threads[j] < 2 )
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182 failed++;
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183 }
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184 diag_printf("\n");
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185
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186 // Delete all the threads
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187 for (i = 0; i < nthread; i++) {
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188 cyg_thread_delete(threads[i]);
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189 }
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190
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191 CYG_TEST_INFO( "Timeslice Test: done");
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192 }
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193
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194
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195 //==========================================================================
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196
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197 void
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198 run_tests(CYG_ADDRESS id)
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199 {
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200 int step;
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201 int nthread;
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202
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203 // Try to run about 10 times in total, with varying numbers of threads
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204 // from only one extra up to the full set:
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205
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206 step = (NTHREADS_MAX - (1 + CYG_KERNEL_CPU_COUNT()))/10;
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207 if( step == 0 ) step = 1;
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208
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209 for( nthread = 1 + CYG_KERNEL_CPU_COUNT() ;
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210 nthread <= NTHREADS_MAX ;
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211 nthread += step )
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212 run_test_timeslice(nthread);
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213
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214 if( failed )
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215 CYG_TEST_FAIL_FINISH("Timeslice test failed\n");
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216
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217 CYG_TEST_PASS_FINISH("Timeslice test OK");
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218 }
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219
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220 //==========================================================================
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221
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222 void timeslice_main( void )
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223 {
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224 CYG_TEST_INIT();
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225
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226 // Work out how many CPUs we actually have.
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227 ncpus = CYG_KERNEL_CPU_COUNT();
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228
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229 cyg_thread_create(0, // Priority - just a number
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230 run_tests, // entry
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231 0, // index
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232 "run_tests", // Name
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233 test_stack, // Stack
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234 STACK_SIZE, // Size
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235 &main_thread, // Handle
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236 &test_thread // Thread data structure
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237 );
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238 cyg_thread_resume( main_thread);
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239
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240 cyg_scheduler_start();
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241 }
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242
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243 //==========================================================================
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244
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245 #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
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246 externC void
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247 cyg_hal_invoke_constructors();
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248 #endif
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249
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250 externC void
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251 cyg_start( void )
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252 {
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253 #ifdef CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
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254 cyg_hal_invoke_constructors();
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255 #endif
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256 timeslice_main();
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257 }
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258
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259 //==========================================================================
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260
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261 #else // CYGSEM_KERNEL_SCHED_TIMESLICE etc
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262
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263 externC void
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264 cyg_start( void )
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265 {
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266 CYG_TEST_INIT();
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267 CYG_TEST_NA("SMP test requires:\n"
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268 "CYGSEM_KERNEL_SCHED_TIMESLICE &&\n"
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269 "CYGPKG_KERNEL_SMP_SUPPORT &&\n"
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270 "CYGFUN_KERNEL_API_C && \n"
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271 "CYGSEM_KERNEL_SCHED_MLQUEUE &&\n"
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272 "CYGVAR_KERNEL_COUNTERS_CLOCK &&\n"
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273 "!CYGPKG_HAL_I386_LINUX &&\n"
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274 "!CYGDBG_INFRA_DIAG_USE_DEVICE &&\n"
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275 "(CYGNUM_KERNEL_SCHED_PRIORITIES > 12)\n");
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276 }
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277
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278 #endif // CYGSEM_KERNEL_SCHED_TIMESLICE etc.
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279
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280 //==========================================================================
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281 // EOF timeslice.c