1 | /* |
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2 | * CPU Usage Reporter |
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3 | * |
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4 | * COPYRIGHT (c) 1989-2007 |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | * |
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11 | * $Id$ |
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12 | */ |
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13 | |
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14 | #ifdef HAVE_CONFIG_H |
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15 | #include "config.h" |
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16 | #endif |
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17 | |
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18 | #include <rtems.h> |
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19 | |
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20 | #include <assert.h> |
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21 | #include <string.h> |
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22 | #include <stdlib.h> |
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23 | #include <ctype.h> |
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24 | #include <inttypes.h> |
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25 | |
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26 | #include <rtems/cpuuse.h> |
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27 | #include <rtems/bspIo.h> |
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28 | |
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29 | #if defined(RTEMS_ENABLE_NANOSECOND_RATE_MONOTONIC_STATISTICS) || \ |
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30 | defined(RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS) |
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31 | #include <rtems/score/timespec.h> |
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32 | |
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33 | /* We print to 1/10's of milliseconds */ |
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34 | #define NANOSECONDS_DIVIDER 100000 |
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35 | #define PERCENT_FMT "%04" PRId32 |
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36 | #endif |
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37 | |
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38 | #ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS |
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39 | extern struct timespec CPU_usage_Uptime_at_last_reset; |
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40 | #else |
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41 | extern uint32_t CPU_usage_Ticks_at_last_reset; |
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42 | #endif |
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43 | |
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44 | /*PAGE |
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45 | * |
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46 | * rtems_cpu_usage_report |
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47 | */ |
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48 | |
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49 | void rtems_cpu_usage_report( void ) |
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50 | { |
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51 | uint32_t i; |
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52 | uint32_t api_index; |
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53 | Thread_Control *the_thread; |
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54 | Objects_Information *information; |
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55 | char name[5]; |
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56 | uint32_t ival, fval; |
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57 | #ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS |
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58 | struct timespec uptime, total; |
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59 | #else |
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60 | uint32_t total_units = 0; |
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61 | #endif |
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62 | |
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63 | /* |
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64 | * When not using nanosecond CPU usage resolution, we have to count |
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65 | * the number of "ticks" we gave credit for to give the user a rough |
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66 | * guideline as to what each number means proportionally. |
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67 | */ |
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68 | #ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS |
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69 | _TOD_Get_uptime( &uptime ); |
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70 | _Timespec_Subtract( &CPU_usage_Uptime_at_last_reset, &uptime, &total ); |
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71 | #else |
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72 | for ( api_index = 1 ; api_index <= OBJECTS_APIS_LAST ; api_index++ ) { |
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73 | if ( !_Objects_Information_table[ api_index ] ) |
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74 | continue; |
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75 | information = _Objects_Information_table[ api_index ][ 1 ]; |
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76 | if ( information ) { |
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77 | for ( i=1 ; i <= information->maximum ; i++ ) { |
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78 | the_thread = (Thread_Control *)information->local_table[ i ]; |
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79 | |
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80 | if ( the_thread ) |
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81 | total_units += the_thread->ticks_executed; |
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82 | } |
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83 | } |
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84 | } |
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85 | #endif |
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86 | |
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87 | printk( "CPU Usage by thread\n" |
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88 | #ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS |
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89 | " ID NAME SECONDS PERCENT\n" |
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90 | #else |
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91 | " ID NAME TICKS PERCENT\n" |
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92 | #endif |
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93 | ); |
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94 | |
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95 | for ( api_index = 1 ; |
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96 | api_index <= OBJECTS_APIS_LAST ; |
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97 | api_index++ ) { |
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98 | if ( !_Objects_Information_table[ api_index ] ) |
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99 | continue; |
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100 | information = _Objects_Information_table[ api_index ][ 1 ]; |
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101 | if ( information ) { |
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102 | for ( i=1 ; i <= information->maximum ; i++ ) { |
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103 | the_thread = (Thread_Control *)information->local_table[ i ]; |
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104 | |
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105 | if ( !the_thread ) |
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106 | continue; |
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107 | |
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108 | rtems_object_get_name( the_thread->Object.id, sizeof(name), name ); |
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109 | |
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110 | printk( "0x%08" PRIx32 " %4s ", the_thread->Object.id, name ); |
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111 | |
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112 | #ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS |
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113 | _Timespec_Divide( &the_thread->cpu_time_used, &total, &ival, &fval ); |
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114 | |
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115 | printk( |
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116 | "%" PRId32 ".%06d" /* cpu time used */ |
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117 | " %3" PRId32 ".%02" PRId32 "\n", /* percentage */ |
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118 | the_thread->cpu_time_used.tv_sec, |
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119 | the_thread->cpu_time_used.tv_nsec / |
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120 | TOD_NANOSECONDS_PER_MICROSECOND, |
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121 | ival, |
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122 | fval |
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123 | ); |
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124 | #else |
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125 | ival = (total_units) ? |
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126 | the_thread->ticks_executed * 10000 / total_units : 0; |
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127 | fval = ival % 100; |
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128 | ival /= 100; |
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129 | printk( |
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130 | "%8" PRId32 " %3" PRId32 ".%02" PRId32"\n", |
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131 | the_thread->ticks_executed, |
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132 | ival, |
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133 | fval |
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134 | ); |
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135 | #endif |
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136 | } |
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137 | } |
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138 | } |
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139 | |
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140 | #ifdef RTEMS_ENABLE_NANOSECOND_CPU_USAGE_STATISTICS |
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141 | printk( "Time since last reset %d.%06d seconds\n", |
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142 | total.tv_sec, |
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143 | total.tv_nsec / TOD_NANOSECONDS_PER_MICROSECOND |
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144 | ); |
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145 | #else |
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146 | printk( |
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147 | "Ticks since last reset = %" PRId32 "\n", |
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148 | _Watchdog_Ticks_since_boot - CPU_usage_Ticks_at_last_reset |
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149 | ); |
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150 | printk( "Total Units = %" PRId32 "\n\n", total_units ); |
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151 | #endif |
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152 | } |
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