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a bit better call stack

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VaclavT
2021-10-07 07:19:53 +02:00
parent 6ada537e47
commit f92cefc004
6 changed files with 98 additions and 68 deletions
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39
ml_profiler.cpp
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@@ -16,41 +16,40 @@ void MlPerfMon::turnOn() {
start_time = std::chrono::high_resolution_clock::now();
}
void MlPerfMon::add_method_call(const std::string &method) {
std::thread::id this_id = std::this_thread::get_id();
void MlPerfMon::add_method_call(const MlValue &function, const std::vector<MlValue> &args) {
// only main thread is logged, to prevent mixing from others threads so lock not needed
if (main_thread_id != this_id)
return;
if (main_thread_id != std::this_thread::get_id()) return;
std::string method = function.type == MlValue::LAMBDA ? "lambda" : function.str;
call_stack.push_back(method);
if (perfOn) {
auto search = calls_counter.find(method);
if (search != calls_counter.end()) {
calls_counter[method] = search->second + 1;
} else {
calls_counter.insert({method, 1});
}
std::string args_string;
for (size_t i = 0; i < args.size() && args_string.size() < 64; i++) {
args_string.append(" ");
args_string.append(args[i].display());
}
if (args_string.size() > 64)
args_string = args_string.substr(0, 62) + ".."; // TODO introduce constant here
call_stack.push_back("(" + method + args_string + ")");
if (perfOn)
calls_counter[method]++;
}
void MlPerfMon::end_method_call() {
std::thread::id this_id = std::this_thread::get_id();
// only main thread is looged, to prevent mixing from others threads so lock not needed
if (main_thread_id != this_id)
return;
if (main_thread_id != std::this_thread::get_id()) return;
if (!call_stack.empty()){
if (!call_stack.empty())
call_stack.pop_back();
}
}
std::string MlPerfMon::callstack() const {
std::string cs {"call stack:\n"};
std::string cs {"\ncall stack:\n"};
int cnt = 0;
for (auto it = call_stack.rbegin(); it != call_stack.rend() && cnt < call_stack_max_methods; ++it, ++cnt)
cs.append( std::string(*it) + "\n"); // << std::endl;
cs.append(" " + std::string(*it) + "\n"); // << std::endl;
if (call_stack.size() > call_stack_max_methods)
cs.append("next " + std::to_string(call_stack.size() - call_stack_max_methods) + " entries skipped..\n");