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debug: add benchmark

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2024-01-18 12:19:44 +01:00
parent ab94d7014f
commit 8839c80fec
1 changed files with 32 additions and 0 deletions
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32
include/stdex/debug.hpp
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@ -8,7 +8,9 @@
#include "compat.hpp"
#include "string.hpp"
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <chrono>
namespace stdex
{
@ -115,4 +117,34 @@ namespace stdex
#endif
}
}
///
/// Measures time between initialization and going out of scope
///
class benchmark
{
public:
///
/// Starts the measurement
///
/// \param[in] task_name Name of the task. The string must remain resident for the lifetime of this object
///
benchmark(_In_z_ const char* task_name) :
m_task_name(task_name),
m_start(std::chrono::high_resolution_clock::now())
{}
///
/// Stops the measurement and outputs the result to the diagnostic console
///
~benchmark()
{
auto duration(std::chrono::high_resolution_clock::now() - m_start);
stdex::diag::printf("%s took %I64i ns\n", m_task_name, static_cast<int64_t>(duration.count()));
}
protected:
const char* m_task_name;
std::chrono::time_point<std::chrono::high_resolution_clock> m_start;
};
}