You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
1.3 KiB
60 lines
1.3 KiB
3 years ago
|
#include <utils/profiler.h>
|
||
|
|
|
||
|
|
#include <algorithm>
|
||
|
|
#include <unordered_map>
|
||
|
|
|
||
|
|
#include <windows.h>
|
||
|
|
#include <SDL.h>
|
||
|
|
|
||
|
|
std::unordered_map<std::string, TimingInfo> timings;
|
||
|
|
|
||
|
|
FunctionProfiler::FunctionProfiler(std::string name)
|
||
|
|
: _name(name)
|
||
|
|
{
|
||
|
|
LARGE_INTEGER frequency;
|
||
|
|
if (QueryPerformanceFrequency(&frequency)) {
|
||
|
|
_frequency = frequency.QuadPart;
|
||
|
|
} else {
|
||
|
|
_frequency = 1000;
|
||
|
|
}
|
||
|
|
|
||
|
|
LARGE_INTEGER ticks;
|
||
|
|
if (QueryPerformanceCounter(&ticks)) {
|
||
|
|
_start = ticks.QuadPart;
|
||
|
|
} else {
|
||
|
|
_start = SDL_GetTicks() * _frequency / 1000;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
FunctionProfiler::~FunctionProfiler()
|
||
|
|
{
|
||
|
|
LARGE_INTEGER ticks;
|
||
|
|
uint64_t now;
|
||
|
|
if (QueryPerformanceCounter(&ticks)) {
|
||
|
|
now = ticks.QuadPart;
|
||
|
|
} else {
|
||
|
|
now = SDL_GetTicks() * _frequency / 1000;
|
||
|
|
}
|
||
|
|
double ms = (double)(now - _start) * 1000.0 / (double)_frequency;
|
||
|
|
|
||
|
|
TimingInfo &timing = timings[_name];
|
||
|
|
timing.ms += ms;
|
||
|
|
timing.count++;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool CompareTiming(const TimingInfo &a, const TimingInfo &b)
|
||
|
|
{
|
||
|
|
return a.ms > b.ms;
|
||
|
|
}
|
||
|
|
|
||
|
|
std::vector<TimingInfo> FunctionProfiler::Dump()
|
||
|
|
{
|
||
|
|
std::vector<TimingInfo> timingList;
|
||
|
|
for (auto it = timings.begin(); it != timings.end(); ++it) {
|
||
|
|
it->second.name = it->first;
|
||
|
|
timingList.push_back(it->second);
|
||
|
|
}
|
||
|
|
std::sort(timingList.begin(), timingList.end(), CompareTiming);
|
||
|
|
return timingList;
|
||
|
|
}
|