generated from rpuzonas/raylib-cpp-template
add option to profiler for compiling out everything
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189be11d10
commit
3c627cd9e1
199
src/rprof.h
199
src/rprof.h
@ -14,6 +14,10 @@
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// When using `rprof_start()`, you need to specify into which slot the timing will be saved.
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// This defines how many slots you have available.
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//
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// RPROF_STUB_OUT:
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// Stub out `rprof_init()`, `rprof_end()`, `rprof_output()`, `rprof_start()`, `rprof_stop()` so they would
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// empty. So it could be compiled out.
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//
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// RPROF_ONLY_TOTAL_TIME:
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// Don't time block marked between `rprof_start()` and `rprof_end()`.
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// Useful for checking the overhead added by the profiler.
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@ -34,6 +38,8 @@
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#define RPROF_MAX_SLOTS 32
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#endif
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#define RPROF_ARRAY_LEN(x) (sizeof(x)/sizeof(x[0]))
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typedef struct {
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const char *label;
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@ -75,6 +81,7 @@ void rprof_output(prof_sort_cmp_cb sort_cb);
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#define RPROF_START(label) rprof_start(__COUNTER__, label)
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#define RPROF_STOP() rprof_stop()
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#define RPROF_IMPLEMENTATION
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#ifdef RPROF_IMPLEMENTATION
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// ------------------------ CPU Timing -------------------------
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@ -158,20 +165,94 @@ static uint64_t rprof_get_cpu_timer_hz(uint64_t measure_time_ms)
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// ------------------------ Profiling -------------------------
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void rprof_init()
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{
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assert(!g_rprof.started);
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g_rprof.init_time = rprof_read_cpu_timer();
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g_rprof.started = true;
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}
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#ifndef RPROF_STUB_OUT
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void rprof_init()
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{
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assert(!g_rprof.started);
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g_rprof.init_time = rprof_read_cpu_timer();
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g_rprof.started = true;
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}
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void rprof_end()
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{
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assert(!g_rprof.finished);
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g_rprof.end_time = rprof_read_cpu_timer();
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g_rprof.finished = true;
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g_rprof.started = false;
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}
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void rprof_end()
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{
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assert(!g_rprof.finished);
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g_rprof.end_time = rprof_read_cpu_timer();
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g_rprof.finished = true;
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g_rprof.started = false;
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}
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void rprof_output(prof_sort_cmp_cb sort_cb)
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{
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assert(g_rprof.finished);
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uint64_t total_time = g_rprof.end_time - g_rprof.init_time;
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uint64_t cpu_hz = rprof_get_cpu_timer_hz(100);
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rprof_slot *slots[RPROF_MAX_SLOTS+1] = { 0 };
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uint32_t slot_count = 0;
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uint64_t profiled_duration = 0;
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uint32_t label_width = 0;
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for (int i = 0; i < RPROF_MAX_SLOTS; i++) {
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rprof_slot *slot = &g_rprof.slots[i];
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if (slot->label) {
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slots[slot_count] = slot;
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slot_count++;
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label_width = MAX(label_width, strlen(slot->label));
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profiled_duration += slot->exclusive_duration;
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}
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}
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uint64_t other_duration = total_time - profiled_duration;
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rprof_slot other_slot = {
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.label = "<other>",
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.calls = 1,
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.inclusive_duration = other_duration,
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.exclusive_duration = other_duration
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};
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if (slot_count > 0) {
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slots[slot_count++] = &other_slot;
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}
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if (sort_cb) {
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qsort(slots, slot_count, sizeof(rprof_slot*), (qsort_cmp*)sort_cb);
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}
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printf("\nTotal time taken: %.3fms (%lu)\n", (float)total_time*1000/cpu_hz, total_time);
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uint32_t duration_max_width = 0;
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uint32_t percent_max_width = 0;
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char percent_column[RPROF_MAX_SLOTS+1][128];
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for (int i = 0; i < slot_count; i++) {
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rprof_slot *slot = slots[i];
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float percent = (float)slot->inclusive_duration*100/total_time;
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float exclusive_percent = (float)slot->exclusive_duration*100/total_time;
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uint32_t length;
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if (slot->inclusive_duration == slot->exclusive_duration) {
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length = snprintf(percent_column[i], 128, "(%6.3f%%)", exclusive_percent);
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} else {
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length = snprintf(percent_column[i], 128, "(%6.3f%%, %6.3f%% w/children)", exclusive_percent, percent);
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}
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percent_max_width = MAX(percent_max_width, length);
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duration_max_width = MAX(duration_max_width, (int)log10(slot->inclusive_duration) + 1);
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}
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char line_format[128];
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snprintf(line_format, RPROF_ARRAY_LEN(line_format), " %%%ds - %%%dlu %%-%ds [%%d]\n", label_width, duration_max_width, percent_max_width);
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for (int i = 0; i < slot_count; i++) {
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rprof_slot *slot = slots[i];
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printf(line_format, slot->label, slot->inclusive_duration, percent_column[i], slot->calls);
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}
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}
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#else
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#define rprof_init()
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#define rprof_end()
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#define rprof_output(...)
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#endif // RPROF_STUB_OUT
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static int rprof_cmp_u32(uint32_t A, uint32_t B)
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{
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@ -199,10 +280,10 @@ int rprof_cmp_by_inclusive_duration(const rprof_slot **A, const rprof_slot **B)
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return rprof_cmp_u32((*A)->inclusive_duration, (*B)->inclusive_duration);
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}
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#ifndef RPROF_ONLY_TOTAL_TIME
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#define RPROF_ARRAY_LEN(x) (sizeof(x)/sizeof(x[0]))
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#if defined(RPROF_ONLY_TOTAL_TIME) || defined(RPROF_STUB_OUT)
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#define rprof_start(...)
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#define rprof_stop(...)
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#else
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void rprof_start(size_t slot_idx, const char *label)
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{
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assert(slot_idx < RPROF_MAX_SLOTS);
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@ -237,90 +318,8 @@ int rprof_cmp_by_inclusive_duration(const rprof_slot **A, const rprof_slot **B)
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g_rprof.slots[slot_idx].inclusive_duration = inclusive_duration + duration;
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}
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void rprof_output(prof_sort_cmp_cb sort_cb)
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{
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assert(g_rprof.finished);
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uint64_t total_time = g_rprof.end_time - g_rprof.init_time;
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uint64_t cpu_hz = rprof_get_cpu_timer_hz(100);
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rprof_slot *slots[RPROF_MAX_SLOTS+1] = { 0 };
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uint32_t slot_count = 0;
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uint64_t profiled_duration = 0;
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uint32_t label_width = 0;
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for (int i = 0; i < RPROF_MAX_SLOTS; i++) {
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rprof_slot *slot = &g_rprof.slots[i];
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if (slot->label) {
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slots[slot_count] = slot;
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slot_count++;
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label_width = MAX(label_width, strlen(slot->label));
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profiled_duration += slot->exclusive_duration;
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}
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}
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uint64_t other_duration = total_time - profiled_duration;
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rprof_slot other_slot = {
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.label = "<other>",
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.calls = 1,
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.inclusive_duration = other_duration,
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.exclusive_duration = other_duration
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};
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slots[slot_count++] = &other_slot;
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if (sort_cb) {
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qsort(slots, slot_count, sizeof(rprof_slot*), (qsort_cmp*)sort_cb);
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}
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printf("\nTotal time taken: %.3fms (%llu)\n", (float)total_time*1000/cpu_hz, total_time);
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uint32_t duration_max_width = 0;
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uint32_t percent_max_width = 0;
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char percent_column[RPROF_MAX_SLOTS+1][128];
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for (int i = 0; i < slot_count; i++) {
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rprof_slot *slot = slots[i];
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float percent = (float)slot->inclusive_duration*100/total_time;
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float exclusive_percent = (float)slot->exclusive_duration*100/total_time;
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uint32_t length;
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if (slot->inclusive_duration == slot->exclusive_duration) {
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length = snprintf(percent_column[i], 128, "(%6.3f%%)", exclusive_percent);
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} else {
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length = snprintf(percent_column[i], 128, "(%6.3f%%, %6.3f%% w/children)", exclusive_percent, percent);
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}
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percent_max_width = MAX(percent_max_width, length);
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duration_max_width = MAX(duration_max_width, (int)log10(slot->inclusive_duration) + 1);
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}
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char line_format[128];
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snprintf(line_format, RPROF_ARRAY_LEN(line_format), " %%%ds - %%%dlu %%-%ds [%%d]\n", label_width, duration_max_width, percent_max_width);
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for (int i = 0; i < slot_count; i++) {
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rprof_slot *slot = slots[i];
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printf(line_format, slot->label, slot->inclusive_duration, percent_column[i], slot->calls);
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}
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}
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static_assert(__COUNTER__ < RPROF_MAX_SLOTS, "__COUNTER__ reached max profiler slots");
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#else
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#define rprof_start(...)
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#define rprof_stop(...)
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void rprof_output(prof_sort_cmp_cb sort_cb)
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{
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assert(g_rprof.finished);
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uint64_t total_time = g_rprof.end_time - g_rprof.init_time;
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uint64_t cpu_hz = rprof_get_cpu_timer_hz(100);
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printf("\nTotal time taken: %.3fms (%llu)\n", (float)total_time*1000/cpu_hz, total_time);
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}
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#endif // RPROF_ONLY_TOTAL_TIME
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#endif
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#endif // RPROF_IMPLEMENTATION
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