[4dad4b8] | 1 | /* |
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| 2 | * Copyright (c) 2014 embedded brains GmbH. All rights reserved. |
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| 3 | * |
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| 4 | * embedded brains GmbH |
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| 5 | * Dornierstr. 4 |
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| 6 | * 82178 Puchheim |
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| 7 | * Germany |
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| 8 | * <rtems@embedded-brains.de> |
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| 9 | * |
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| 10 | * The license and distribution terms for this file may be |
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| 11 | * found in the file LICENSE in this distribution or at |
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[c499856] | 12 | * http://www.rtems.org/license/LICENSE. |
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[4dad4b8] | 13 | */ |
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| 14 | |
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| 15 | #ifdef HAVE_CONFIG_H |
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| 16 | #include "config.h" |
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| 17 | #endif |
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| 18 | |
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| 19 | #include <rtems/profiling.h> |
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| 20 | |
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| 21 | #ifdef RTEMS_PROFILING |
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| 22 | |
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[29c9eb6] | 23 | #include <inttypes.h> |
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| 24 | |
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[4dad4b8] | 25 | typedef struct { |
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| 26 | rtems_profiling_printf printf_func; |
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| 27 | void *printf_arg; |
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| 28 | uint32_t indentation_level; |
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| 29 | const char *indentation; |
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| 30 | int retval; |
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| 31 | } context; |
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| 32 | |
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| 33 | static void update_retval(context *ctx, int rv) |
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| 34 | { |
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| 35 | if (rv > 0 && ctx->retval >= 0) { |
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| 36 | ctx->retval += rv; |
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| 37 | } |
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| 38 | } |
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| 39 | |
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| 40 | static void indent(context *ctx, uint32_t indentation_level) |
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| 41 | { |
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| 42 | uint32_t n = ctx->indentation_level + indentation_level; |
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| 43 | uint32_t i; |
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| 44 | |
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| 45 | for (i = 0; i < n; ++i) { |
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| 46 | int rv = (*ctx->printf_func)(ctx->printf_arg, "%s", ctx->indentation); |
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| 47 | |
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| 48 | update_retval(ctx, rv); |
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| 49 | } |
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| 50 | } |
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| 51 | |
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[8365ad1] | 52 | static uint64_t arithmetic_mean(uint64_t total, uint64_t count) |
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| 53 | { |
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| 54 | return count != 0 ? total / count : 0; |
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| 55 | } |
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| 56 | |
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[29c9eb6] | 57 | static void report_per_cpu(context *ctx, const rtems_profiling_per_cpu *per_cpu) |
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| 58 | { |
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| 59 | rtems_profiling_printf printf_func = ctx->printf_func; |
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| 60 | void *printf_arg = ctx->printf_arg; |
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| 61 | int rv; |
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| 62 | |
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| 63 | indent(ctx, 1); |
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| 64 | rv = (*printf_func)( |
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| 65 | printf_arg, |
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| 66 | "<PerCPUProfilingReport processorIndex=\"%" PRIu32 "\">\n", |
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| 67 | per_cpu->processor_index |
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| 68 | ); |
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| 69 | update_retval(ctx, rv); |
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| 70 | |
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| 71 | indent(ctx, 2); |
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| 72 | rv = (*printf_func)( |
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| 73 | printf_arg, |
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| 74 | "<MaxThreadDispatchDisabledTime unit=\"ns\">%" PRIu32 |
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| 75 | "</MaxThreadDispatchDisabledTime>\n", |
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| 76 | per_cpu->max_thread_dispatch_disabled_time |
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| 77 | ); |
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| 78 | update_retval(ctx, rv); |
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| 79 | |
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| 80 | indent(ctx, 2); |
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| 81 | rv = (*printf_func)( |
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| 82 | printf_arg, |
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[8365ad1] | 83 | "<MeanThreadDispatchDisabledTime unit=\"ns\">%" PRIu64 |
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| 84 | "</MeanThreadDispatchDisabledTime>\n", |
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| 85 | arithmetic_mean( |
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| 86 | per_cpu->total_thread_dispatch_disabled_time, |
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| 87 | per_cpu->thread_dispatch_disabled_count |
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| 88 | ) |
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[29c9eb6] | 89 | ); |
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| 90 | update_retval(ctx, rv); |
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| 91 | |
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| 92 | indent(ctx, 2); |
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| 93 | rv = (*printf_func)( |
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| 94 | printf_arg, |
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| 95 | "<TotalThreadDispatchDisabledTime unit=\"ns\">%" PRIu64 |
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| 96 | "</TotalThreadDispatchDisabledTime>\n", |
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| 97 | per_cpu->total_thread_dispatch_disabled_time |
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| 98 | ); |
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| 99 | update_retval(ctx, rv); |
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| 100 | |
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| 101 | indent(ctx, 2); |
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| 102 | rv = (*printf_func)( |
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| 103 | printf_arg, |
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[8365ad1] | 104 | "<ThreadDispatchDisabledCount>%" PRIu64 "</ThreadDispatchDisabledCount>\n", |
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| 105 | per_cpu->thread_dispatch_disabled_count |
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[29c9eb6] | 106 | ); |
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| 107 | update_retval(ctx, rv); |
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| 108 | |
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| 109 | indent(ctx, 2); |
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| 110 | rv = (*printf_func)( |
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| 111 | printf_arg, |
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| 112 | "<MaxInterruptDelay unit=\"ns\">%" PRIu32 "</MaxInterruptDelay>\n", |
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| 113 | per_cpu->max_interrupt_delay |
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| 114 | ); |
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| 115 | update_retval(ctx, rv); |
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| 116 | |
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| 117 | indent(ctx, 2); |
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| 118 | rv = (*printf_func)( |
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| 119 | printf_arg, |
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[8365ad1] | 120 | "<MaxInterruptTime unit=\"ns\">%" PRIu32 |
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| 121 | "</MaxInterruptTime>\n", |
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| 122 | per_cpu->max_interrupt_time |
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| 123 | ); |
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| 124 | update_retval(ctx, rv); |
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| 125 | |
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| 126 | indent(ctx, 2); |
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| 127 | rv = (*printf_func)( |
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| 128 | printf_arg, |
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| 129 | "<MeanInterruptTime unit=\"ns\">%" PRIu64 |
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| 130 | "</MeanInterruptTime>\n", |
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| 131 | arithmetic_mean( |
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| 132 | per_cpu->total_interrupt_time, |
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| 133 | per_cpu->interrupt_count |
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| 134 | ) |
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[29c9eb6] | 135 | ); |
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| 136 | update_retval(ctx, rv); |
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| 137 | |
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| 138 | indent(ctx, 2); |
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| 139 | rv = (*printf_func)( |
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| 140 | printf_arg, |
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| 141 | "<TotalInterruptTime unit=\"ns\">%" PRIu64 "</TotalInterruptTime>\n", |
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| 142 | per_cpu->total_interrupt_time |
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| 143 | ); |
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| 144 | update_retval(ctx, rv); |
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| 145 | |
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[8365ad1] | 146 | indent(ctx, 2); |
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| 147 | rv = (*printf_func)( |
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| 148 | printf_arg, |
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| 149 | "<InterruptCount>%" PRIu64 "</InterruptCount>\n", |
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| 150 | per_cpu->interrupt_count |
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| 151 | ); |
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| 152 | update_retval(ctx, rv); |
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| 153 | |
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[29c9eb6] | 154 | indent(ctx, 1); |
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| 155 | rv = (*printf_func)( |
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| 156 | printf_arg, |
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| 157 | "</PerCPUProfilingReport>\n" |
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| 158 | ); |
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| 159 | update_retval(ctx, rv); |
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| 160 | } |
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| 161 | |
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[350f88dc] | 162 | static void report_smp_lock(context *ctx, const rtems_profiling_smp_lock *smp_lock) |
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| 163 | { |
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| 164 | rtems_profiling_printf printf_func = ctx->printf_func; |
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| 165 | void *printf_arg = ctx->printf_arg; |
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| 166 | int rv; |
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| 167 | uint32_t i; |
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| 168 | |
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| 169 | indent(ctx, 1); |
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| 170 | rv = (*printf_func)( |
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| 171 | printf_arg, |
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| 172 | "<SMPLockProfilingReport name=\"%s\">\n", |
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| 173 | smp_lock->name |
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| 174 | ); |
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| 175 | update_retval(ctx, rv); |
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| 176 | |
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| 177 | indent(ctx, 2); |
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| 178 | rv = (*printf_func)( |
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| 179 | printf_arg, |
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| 180 | "<MaxAcquireTime unit=\"ns\">%" PRIu32 "</MaxAcquireTime>\n", |
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| 181 | smp_lock->max_acquire_time |
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| 182 | ); |
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| 183 | update_retval(ctx, rv); |
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| 184 | |
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| 185 | indent(ctx, 2); |
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| 186 | rv = (*printf_func)( |
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| 187 | printf_arg, |
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| 188 | "<MaxSectionTime unit=\"ns\">%" PRIu32 "</MaxSectionTime>\n", |
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| 189 | smp_lock->max_section_time |
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| 190 | ); |
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| 191 | update_retval(ctx, rv); |
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| 192 | |
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| 193 | indent(ctx, 2); |
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| 194 | rv = (*printf_func)( |
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| 195 | printf_arg, |
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[8365ad1] | 196 | "<MeanAcquireTime unit=\"ns\">%" PRIu64 |
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| 197 | "</MeanAcquireTime>\n", |
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| 198 | arithmetic_mean( |
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| 199 | smp_lock->total_acquire_time, |
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| 200 | smp_lock->usage_count |
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| 201 | ) |
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| 202 | ); |
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| 203 | update_retval(ctx, rv); |
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| 204 | |
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| 205 | indent(ctx, 2); |
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| 206 | rv = (*printf_func)( |
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| 207 | printf_arg, |
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| 208 | "<MeanSectionTime unit=\"ns\">%" PRIu64 |
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| 209 | "</MeanSectionTime>\n", |
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| 210 | arithmetic_mean( |
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| 211 | smp_lock->total_section_time, |
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| 212 | smp_lock->usage_count |
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| 213 | ) |
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[350f88dc] | 214 | ); |
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| 215 | update_retval(ctx, rv); |
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| 216 | |
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| 217 | indent(ctx, 2); |
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| 218 | rv = (*printf_func)( |
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| 219 | printf_arg, |
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| 220 | "<TotalAcquireTime unit=\"ns\">%" PRIu64 "</TotalAcquireTime>\n", |
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| 221 | smp_lock->total_acquire_time |
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| 222 | ); |
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| 223 | update_retval(ctx, rv); |
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| 224 | |
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| 225 | indent(ctx, 2); |
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| 226 | rv = (*printf_func)( |
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| 227 | printf_arg, |
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| 228 | "<TotalSectionTime unit=\"ns\">%" PRIu64 "</TotalSectionTime>\n", |
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| 229 | smp_lock->total_section_time |
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| 230 | ); |
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| 231 | update_retval(ctx, rv); |
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| 232 | |
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[8365ad1] | 233 | indent(ctx, 2); |
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| 234 | rv = (*printf_func)( |
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| 235 | printf_arg, |
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| 236 | "<UsageCount>%" PRIu64 "</UsageCount>\n", |
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| 237 | smp_lock->usage_count |
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| 238 | ); |
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| 239 | update_retval(ctx, rv); |
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| 240 | |
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[350f88dc] | 241 | for (i = 0; i < RTEMS_PROFILING_SMP_LOCK_CONTENTION_COUNTS; ++i) { |
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| 242 | indent(ctx, 2); |
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| 243 | rv = (*printf_func)( |
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| 244 | printf_arg, |
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| 245 | "<ContentionCount initialQueueLength=\"%" PRIu32 "\">%" |
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| 246 | PRIu64 "</ContentionCount>\n", |
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| 247 | i, |
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| 248 | smp_lock->contention_counts[i] |
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| 249 | ); |
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| 250 | update_retval(ctx, rv); |
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| 251 | } |
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| 252 | |
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| 253 | indent(ctx, 1); |
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| 254 | rv = (*printf_func)( |
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| 255 | printf_arg, |
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| 256 | "</SMPLockProfilingReport>\n" |
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| 257 | ); |
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| 258 | update_retval(ctx, rv); |
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| 259 | } |
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| 260 | |
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[4dad4b8] | 261 | static void report(void *arg, const rtems_profiling_data *data) |
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| 262 | { |
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| 263 | context *ctx = arg; |
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[29c9eb6] | 264 | |
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| 265 | switch (data->header.type) { |
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| 266 | case RTEMS_PROFILING_PER_CPU: |
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| 267 | report_per_cpu(ctx, &data->per_cpu); |
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| 268 | break; |
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[350f88dc] | 269 | case RTEMS_PROFILING_SMP_LOCK: |
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| 270 | report_smp_lock(ctx, &data->smp_lock); |
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| 271 | break; |
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[29c9eb6] | 272 | } |
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[4dad4b8] | 273 | } |
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| 274 | |
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| 275 | #endif /* RTEMS_PROFILING */ |
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| 276 | |
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| 277 | int rtems_profiling_report_xml( |
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| 278 | const char *name, |
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| 279 | rtems_profiling_printf printf_func, |
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| 280 | void *printf_arg, |
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| 281 | uint32_t indentation_level, |
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| 282 | const char *indentation |
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| 283 | ) |
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| 284 | { |
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| 285 | #ifdef RTEMS_PROFILING |
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| 286 | context ctx_instance = { |
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| 287 | .printf_func = printf_func, |
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| 288 | .printf_arg = printf_arg, |
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| 289 | .indentation_level = indentation_level, |
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| 290 | .indentation = indentation, |
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| 291 | .retval = 0 |
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| 292 | }; |
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| 293 | context *ctx = &ctx_instance; |
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| 294 | int rv; |
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| 295 | |
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| 296 | indent(ctx, 0); |
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| 297 | rv = (*printf_func)(printf_arg, "<ProfilingReport name=\"%s\">\n", name); |
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| 298 | update_retval(ctx, rv); |
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| 299 | |
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| 300 | rtems_profiling_iterate(report, ctx); |
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| 301 | |
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| 302 | indent(ctx, 0); |
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| 303 | rv = (*printf_func)(printf_arg, "</ProfilingReport>\n"); |
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| 304 | update_retval(ctx, rv); |
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| 305 | |
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| 306 | return ctx->retval; |
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| 307 | #else /* RTEMS_PROFILING */ |
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| 308 | (void) name; |
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| 309 | (void) printf_func; |
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| 310 | (void) printf_arg; |
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| 311 | (void) indentation_level; |
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| 312 | (void) indentation; |
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| 313 | |
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| 314 | return 0; |
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| 315 | #endif /* RTEMS_PROFILING */ |
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| 316 | } |
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